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[AgriLife Texas] Texas crop and weather report for July 19

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By: Adam Russell

Heat stress noted among many dryland crops as high temperatures persist

BEAUMONT — Heat is stressing crops, pastures and gardens throughout Texas.

The majority of Texas A&M AgriLife Extension Service districts reported daytime temperatures exceeding the high 90s, with several reporting temperatures beyond 105 degrees. Increased daytime and nighttime heat is taking a toll on croplands and forages as moisture levels in non-irrigated fields continue to decline.

Lee Tarpley, Texas A&M AgriLife Research plant physiologist, Beaumont, said higher than normal temperatures around the state could impact yields and quality for producers.

Tarpley said there were reports from rice fields west of Houston regarding stress from high nighttime temperatures. High nighttime temperatures can affect rice flowering, which could hurt fertility and ultimately grain production.

A healthy range of nighttime temperatures for rice is below 73 degrees, Tarpley said. Anything above 77 degrees can noticeably damage plants.

Temperatures and heat stress can affect plants in several ways at different growth stages, he said.

During vegetative growth, heat stress can cause oxidative stress, which hurts plant photosynthesis, Tarpley said. Damages can impact yields.

Heat stress during flowering and seed setting, as with the rice fields near Houston, can impact fertilization and effectively reduce seed set and fruit or grain numbers, depending on the crop, he said. After the plant’s grain or fruit has started to develop, heat stress can hurt harvest quality.

Tarpley said high temperatures also impact plant transpiration, the process of water moving through a plant with most eventually being lost from aerial parts, especially leaves stems and flowers, as the plant exchanges gas with the atmosphere during photosynthesis. Transpiration has a cooling effect on plants, so can help reduce heat stress effects.

“At a point though, if the plant gets too stressed it will tend to shut down transpiration to leaves and flowers,” he said. “Dryland crops could be suffering without water. They try to take up more water, which indirectly takes even more energy.”

Tarpley said various crops are facing stress at different points in their growth cycle based on regional planting schedules and whether producers were delayed due to spring rains.

Delays that shift plant development deeper into summer usually have a detrimental effect on yields, said Dr. Ted Wilson, Texas A&M AgriLife Research and Extension Center director, Beaumont, because later maturing rice experiences higher temperatures, which increase plant stress.

A multi-year analysis of yields from over 10,000 rice fields showed yields decreased by 315 pounds per acre each week harvest was delayed past the week maximum yield occurs.

“If they’re delayed six weeks, you’re looking at almost 2,000 pounds per acre and that is significant,” he said.

The heat has different effects on various vegetative plants, but high temperatures cause stress for most crops at some point, Wilson said. Heat stress has been shown to reduce fruit sets in tomatoes, and a study on cotton by the University of California at Berkeley showed stressed plants began aborting young squares in which the plant has invested the least amount of energy so it might save bolls with heavy energy investment.

AgriLife Extension district reporters compiled the following summaries:

CENTRAL: The district was hot and dry. Dryland corn silage harvest was turning out well. Pastureland started to show some signs of stress. The weather forecast showed no sign of rain anytime soon. Irrigation of cotton was going strong. Some sorghum fields were sprayed with Roundup to prepare for harvest. Sugarcane aphid populations were on the rise, and some fields were treated. Livestock and cattle were in good condition. Overall crop conditions were 90 percent good, and 75 percent of the counties reported soil moisture as fair.

ROLLING PLAINS: Summer storms produced some hail and heavy rains that washed out some cotton. Extreme lightning caused a dozen reported wildfires. Some fleahopper pressure was seen in fields. Cotton continued to look good although increased daily temperatures started to affect the plants. Cattle were in good condition.

COASTAL BEND: The district was hot and dry with some windy conditions. Corn harvest was bringing in 80-100 bushels per acre, and grain sorghum harvest neared completion with aboveaverage yields being reported. Cotton was holding on but could use some rain. Some bolls were beginning to open. Bollworms were still an issue. Fields were parched and very dry with hot spots beginning to show up in some pastures, but all in all forage conditions were still good. Hay making was in full swing with big yields. Cattle were in good condition.

EAST: Extremely hot and dry conditions remained around the district. Weather forecasts predicted little or no rain, but all counties needed moisture. Pond levels were dropping. Pasture and range conditions were mostly good. Most counties reported adequate subsoil and topsoil conditions. Some areas in Gregg County were under burn bans as topsoil moisture conditions were very short. Drought conditions have set in for most of Houston County. Panola County expected to enter a short-period drought if the heat and high winds continue. Wildfire chances increased due to abundant underbrush growth from spring rains. Hay was being cut and baled. Some pastures have shown little regrowth after cutting and have started to turn brown. Producers in Trinity County made one cutting of hay, but few made a second. Baling slowed down in most counties. Smith County producers were worried that without rain, hay supplies could be a little short this year. Gardens were drying up. Corn in Houston County had almost completely turned brown from the base up. Only a small percentage of fields were still green but not expected to stay that way for long. One field was cut down completely. Fall planting was going on in Jasper County. Cattle were in good condition. Prices were holding steady in Gregg County. Shelby County reported large numbers of cattle at sale barns with the market down some. In Trinity County, some producers were selling market-ready calves while others were holding off. Feral hogs were very active. Horn and barn flies were in great numbers. Producers were checking for armyworms and grasshoppers in forages.

SOUTH PLAINS: Hot, dry weather continued. Floyd County finally received some rain, from 0.3 of an inch to 2 inches. Scattered rains helped dryland cotton, but with temperatures remaining very high, fields will need more rain to keep going. Some cotton was blooming. Lubbock County experienced extreme heat, with four consecutive days of 104 to 108 degree highs. Corn was in the tassel to milk stages. Pollination appeared good in the majority of fields in spite of the heat. Sugarcane aphids were found in adjacent counties in grain sorghum.

PANHANDLE: The district continued with hot, dry and windy weather. Temperatures were above average for most of the district. A cool front dropped temperatures into the lower 90s briefly. Some moisture was received. Amounts ranged from a trace to 1.50 inches in a few areas. Soil moisture varied from very short to adequate with most reporting short. Hot weather was affecting all summer crops negatively. Ranges were drying out. If current weather conditions continue supplemental feeding will start soon. Grasshoppers were becoming a problem. Corn was beginning to silk and was stressed from the very high temperatures. Some corn was already behind in soil moisture. Lightning caused a few range fires. Producers irrigated around the clock trying to keep up with crop water demands with the above-normal temperatures. Earlier-planted corn was holding, however the later plantings were suffering because of the lack of water and 100-plus degree days. Decisions will be made soon regarding some crop abandonment to save half circles of corn. Cotton was coming along, but it, too, needed irrigation. However, most cotton was still young enough to hold on. Grain sorghum was looking good since most of the crop remained in the vegetative stage, but heat was taking its toll. Weeds were a problem in fields, and plowing was taking place. Cattle on pasture looked good. Insects were a problem.

NORTH: Topsoil moisture ranged from adequate to short and decreasing amid dry, hot conditions with temperatures near 100 and strong southerly winds. A slight chance of rain was in the forecast. Irrigation of crops, gardens and lawns took place. Corn and grain sorghum were starting to mature. Soybeans were blooming, and some fields were setting pods. Grain sorghum looked decent. Pastures still looked decent given the weather conditions. Hay fields needed rain. Hay producers continued to bale mostly second cuttings on Bermuda grass and some first cuttings on native grasses. Producers said yields were about average on most fields. Livestock were in good condition. Grasshopper activity picked up. Some pressure from sugarcane aphids on some milo fields was reported.

FAR WEST: The district experienced temperatures above 100 degrees with spotty showers and extreme lightening, which led to a high fire danger in some counties. Ward and Brewster counties were the only counties to receive a significant amount of rainfall, from 1-1.5 inches. Cattle in those counties were in excellent condition headed into the fall. Crops and pastures were starting to suffer from the extensive heat and no measurable rainfall. Early cotton began blooming. Sorghum entered hard dough stage, and corn was approaching 50 percent starch as watermelon harvesting continued.

WEST CENTRAL: Dry, hot, windy conditions prevailed as temperatures remained in the triple digits. Burn bans were being issued. Pastures were drying out, and fire dangers increased. Field activities, including fertilizer and pest applications, continued as producers prepared for fall planting. Grasshoppers were becoming a concern. Cotton crops were fully emerged and growing. Wheat harvest was mostly complete. Yields were not as good as expected due to excessive rains that delayed harvest and damaged some crops. About 60 percent of grain wheat was not harvested. Grain sorghum looked good and progressed well. Row crops were starting to show signs of heat and moisture stress. Cutting and baling hay continued and was mostly complete. Range and pasture conditions were declining. They were no longer lush and green but were beginning to show heat stress and dry out fast. Livestock remained in fair to good condition. Cattle prices went down. Pecans seemed to be holding where irrigation was available. Native pastures were in good condition.

SOUTHEAST: Dry conditions continued. A few scattered showers were reported in Jefferson County. High, above average temperatures were affecting crop and pasture growth. Some hay was still being baled. Rice and other crop conditions looked good, however, a good rain would not hurt as the ground continued to dry. Soil moisture levels throughout the region ranged widely from adequate to surplus, with most adequate. Rangeland and pasture ratings varied widely too, from excellent to good, with fair ratings being the most common.

SOUTHWEST: Warm and dry conditions continued with temperatures over 100 degrees. Wildfire dangers increased. Soil moisture levels were depleting rapidly. Pastures and fields dried considerably and rapidly. The corn and milo harvest began. Rangelands were dry, and livestock were in fair condition.

SOUTH: Extremely hot temperatures and high winds continued throughout the district. The combination quickly dried rangeland of any good soil moisture levels remaining. Temperatures were unusually high, and daily highs near 110 were recorded in some areas. A few watermelons and cantaloupes remained in fields in parts of Maverick County. Corn and sorghum harvesting was in full swing. Some corn fields reported uncommonly high yields, upwards of 120 bushels per acre. Early planted sorghum harvesting should be completed soon, and later-planted sorghum should be ready for harvest within the next two weeks. Irrigated sorghum continued to receive water. Cotton was in the boll-opening stage. Early planted peanuts were beginning to peg, and all peanut fields were under constant irrigation. Range and pasture conditions continued to decline. Some ranges and pastures have gone dormant, and forage quality declined some. Soil was dry and cracked, and no moisture was visible on topsoil or in the subsoil in some areas. Supplemental feed was increasing, and body condition scores on cattle remained in good condition. Overall soil moisture conditions were 65 to 100 percent very short. Livestock markets reported increased offerings, but prices slipped some in most classes of beef cattle. Supplemental feeding of cattle continued in some areas.

-30-

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Farm & Ranch

Tracks in the Sand

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This morning, I walked out into my arena and noticed something that gave me pause. The roping steers had been in there the day before, and even though the ground was wide and level, the sand carried their story. Hoofprints crossed every direction, but in several spots, the same trail was pressed deeper than the rest. Twelve steers had been turned out, yet more than a few chose the exact same path, wearing it down until it stood out from all the other tracks.

Cattle are creatures of habit. Anyone who has spent time around them knows this. They like routine: the same feed, the same water trough, the same shade tree in the pasture. When they are turned loose, they rarely wander without purpose. More often than not, they move together, following the same course as the steer in front of them. There are reasons for this: efficiency, safety, instinct. Walking a beaten path conserves energy, and following the herd is their natural defense. Even in an arena with no real destination, those instincts come through. By the end of a short turnout, you will see the evidence, lines where they have chosen the easiest way to travel and stuck with it.

Out on the range, those lines last longer. Before fences and highways, cattle drives cut deep paths across the land. The Chisholm Trail, which carried herds north from Texas through Oklahoma into Kansas, was walked by millions of cattle in the late 1800s. More than a century later, faint traces of those trails remain, worn so deep by hooves and wagon wheels that the land still carries the mark. On ranches today, you can see the same effect in pastures where cattle walk the same lines between water and grazing. From the ground those trails might look like nothing more than dusty ruts, but from the air, they sometimes stand out as sharp lines winding through otherwise open fields. Cattle do not simply pass over the land; they shape it. Every step adds up.

That simple truth extends beyond livestock. We all make tracks. Our habits and routines are our trails, worn in by repetition, sometimes efficient, sometimes limiting. Like the cow paths, they can serve a purpose, keeping us steady and helping us move forward. But when repeated without thought, they risk becoming ruts, keeping us from stepping into new ground. History offers perspective here too. The old cattle trails built towns and economies, but once railroads and fences changed the landscape, those paths were no longer useful. Sticking to them would have meant going in circles. Progress required something new.


The Tracks We Leave

Standing in the arena, I thought about the kind of tracks I leave behind. Most of mine are not visible in the dirt. They are pressed into my daily life, how I work, the way I handle challenges, the example I set. Some are helpful and worth keeping. Others may have outlived their purpose. The difference comes in knowing when to stay in the track and when to step out of it.

Tomorrow I will drag the arena and smooth it all clean again. The next time the steers are turned in, they will make the same trails. That is their nature. But unlike them, I have a choice. I can decide which paths are worth walking, which ones to change, and what kind of tracks I want to leave for others who might follow.

Tracks tell a story. Sometimes they are only temporary, fading with the next rain. Other times they last for generations, reminders of where herds and people once walked. This morning, the cattle showed me again that even the smallest things on the ranch carry meaning. Their tracks in the arena were not just marks in the sand. They were a lesson: every step matters, and the paths we choose shape more than just the ground beneath our feet.

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Sideoats Grama

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In 2015, we introduced this “Grazing North Texas” series by highlighting one of our most important forage plants, Sideoats grama.  On this 11th  anniversary, we will take a closer look at this unique and valuable species.

Every Texan should be aware that Sideoats grama is the Texas State Grass.  It was recommended for this honor in 1971 by the Texas Council of Chapters of the Soil Conservation Society of America and the Texas Section of the American Society of Range Management, and was officially adopted by Senate Concurrent Resolution 31 in 1971.

Resolution 31 states, in part, that “Although there are many desirable forage species native to the State, one variety, Sideoats grama, occurs on a greater diversity of soils than any other grass; on rangelands of West Texas it is the backbone of the ranching industry.”

Sideoats grama is a deeply rooted summer perennial bunchgrass.  It is a mid-grass in height, reaching from 8 inches to 36 inches, depending upon variety and growing conditions. As a mid-grass, it does not produce the total pounds of forage that the tall grasses produce, but the quality of the forage is very good.

Sideoats grama produces high quality, nutritious forage that is relished by all classes of livestock.  Crude protein can reach 11 percent in spring green up, decrease to 5 to 8 percent during summer months, and maintain a very respectable 3.5 to 4.5 percent protein after frost, making it one of our most important forage species.

Sideoats has rather wide leaves that take on a characteristic color and curl as the plant matures.  The seed head is a zigzag stalk containing small spikes dangling from one side, thus the name Sideoats.   Depending upon variety, Sideoats can spread by seed and by small stout rhizomes.  It is often found in colonies.

Sideoats is most at home in the mid-grass prairie section of the Great Plains that receives 12 to 20 inches of annual rainfall, but can be found in all areas of Texas (except the far eastern counties), and is adapted to most of the central and western US.  It blends well with other native summer grasses such as Little bluestem, Indiangrass, and many mid and short species.  It is the most productive of the grama family. 

Being adapted to almost all soil types, it has the widest range of soil adaptation of almost all summer perennial grasses. But the best stands are found on medium to fine textured upland sites. It is also better adapted to calcareous and moderately alkaline soils than to neutral or acidic soils.

Sideoats grama can serve many uses, but the best use is as high quality nutritious forage for all classes of livestock.  It is also recommended as part of a planting mix for earth fill and bank stabilization, and for establishing grass on critical areas. It was noted in 1944 that it was one of the important grasses remaining in large areas that were affected by the drought of the 1930s, and played an important role in reclaiming those damaged acres.  Successful stands can be obtained on rocky and shallow soils.

Sideoats provides some forage for antelope and deer when actively growing.  Elk use it for forage throughout the year, and wild turkey consume some seed.

Several varieties have been bred and produced over the years. One of the early varieties was ‘El Reno’ Sideoats grama, bred and released in Kansas in 1944. Another variety, Haskell, was released in 1983 by the James E. (Bud) Smith Plant Materials Center in Texas.  Haskell is still widely used in plantings today.

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Raising Chicks

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By Landon Moore

If you keep or are interested in keeping poultry, you will have the desire to raise young birds at some point. If you order chicks, or decide to incubate and hatch eggs, it will be necessary to learn how to brood the resulting hatchlings. While this will vary in specifics between species, the basic rules remain the same. In this article, the word “chicks” will be used, but the general information following also applies to goslings, ducklings, keets, poults, etc.

Brooding poultry is caring for the chicks during the period when they are growing their first feathers. Chicks hatch with a thin coat of down that leaves them susceptible to chilling. The mother keeps them warm by continuing to sit on the young for the first weeks after hatching. If you plan to hatch your own flock’s eggs you may wonder why you should bother to do it artificially, especially if you have broody birds. The answer is that modern incubators are much more likely to result in live chicks, can incubate far more eggs and keep the extremely vulnerable hatchlings safe as they emerge, especially from ants. Of course if you are purchasing chicks, brooding is your only option.

Before your eggs hatch or the chicks arrive, you will want to have the brooder set up, and ready to go. The first issue to decide is location. You will want a covered and secured place to set up the brooder. Be sure it has plenty of air flow; as anyone who has spent any time with birds can attest, fowl of any age produce an unpleasant smell without adequate ventilation. A barn or other outbuilding could work, but be sure it is well secured. A cat, raccoon or other predator could easily kill your chicks if they get the opportunity. A garage is a great option, offering protection and close access to water and electricity. If it lacks windows you will need to open the garage door a few times per day for ventilation. Inside the house is another option (such as in a disused bathroom) especially for very small poultry. This may seem ideal, offering complete protection, easy temperature regulation, water and electrify, but there are drawbacks. Aside from smell, chicks are unbelievably messy and will require extensive and daily cleaning if the room is to remain in even slightly good condition.

The next choice is what the brooder box will be. You can purchase large metal brooders built for hundreds of chicks or expensive tiered systems on rollers. However the best option is usually a plain, heavy-duty plastic storage box. Cheap, easy to move, simple to clean and sanitize, these are the most versatile and efficient option.

The chicks will require (in addition to shelter) heat, bedding, feed and water. The heat will come in the form of a small heat lamp or even a very strong and hot light bulb suspended above one end of the brooder box. Be sure it is securely prevented from falling into bedding or you could end up with a fire. You can make a metal screen to place over the box which protects them from predators in addition to falling lamps. Place a thermometer at the surface of the bedding before adding the chicks and adjust the heat lamp until the thermometer measures 95 degrees. You will reduce this by 5 degrees each week until their feathers have grown out. Even if the weather reaches or exceeds this temperature a lamp will be needed at night.

You may be intimidated by charts showing the exact temperature requirements of various poultry species and wonder how you can possibly keep the heat exactly right during daily temperature shifts. You do not need to be overly worried about this. Why? Because the chicks will tell you if they are comfortable through their behavior. After placing them in the brooder simply watch them for a few minutes. Do they crowd underneath the heat, piling on each other to conserve heat? Lower the bulb a bit. Are they straining against the opposite wall and cheeping in stress? Move it further away. Are they fairly evenly spread out, some exploring their new environment and some sleeping under the heat? Perfect. This is why the heat should be placed over one end of the brooder. If it is over the entire box you will have no way of knowing if your chicks are over-warmed.

The next issue is bedding. When the chicks are first placed in the brooder the bedding should be a layer of paper towels or (non-slick) newspaper. This even surface provides good traction for the birds preventing splayed legs and also prevents them from getting stuck somewhere and dying or else ingesting bedding before they learn what feed is and dying. It is always good to keep in mind that chicks of all kinds are morbid little things that will jump at the first opportunity for death in their initial couple weeks of life. It is up to you to deny them the opportunity until their self-preservation instinct kicks in. Chicks mature shockingly fast and in just a couple of days the bedding may be exchanged for pine shavings. You may still want a layer of paper at the bottom to make cleaning easier. You do not want to disturb the chicks without necessity, so you can add a fresh layer of shavings a couple of times as needed before you completely clean the box.

Commercial chick feed is available that is meant to be suitable for all species. For game birds, guineas and turkeys it’s often better to just use an adult gamebird crumble feed as their protein requirements are extremely high. For waterfowl, be sure the feed has enough niacin if it isn’t specifically formulated for them. If it does not have enough, you can sprinkle some brewer’s yeast over the top. Medicated feed is usually formulated for chicks specifically and may not be safe for other species (especially for waterfowl), so be sure to check before feeding. Chicks aren’t especially bright and may not be able to figure out how to operate the feeder at first. You can help them by placing a small pile of their feed on a paper plate (or paper towel for quail) where they can see it more easily.

For waterers, their basically two main types; open waterers and bottles. The bottles can be complicated with multiple pieces and nipples to drink from or simply a two piece plastic quart jar and base that screw together. The open waterers will usually be a miniature trough with a hinged or sliding lid that allows the chicks to stick their heads in without falling into the waterer and drowning. Generally the bottle type waterers will stay cleaner and hold more, but for waterfowl open waterers are preferred so they may submerge their bills for cleaning. Quail should be given bottles with special quail bases which are very small to prevent drowning. It can be extremely beneficial to dissolve a couple tablespoons of sugar (or commercially-made chick electrolytes) into the water for the first few days, especially if the chicks came by mail. Provide chicks with warm water the first few days (use your inner wrist to determine a suitable temperature, as you would milk for a bottle) to prevent chilling them. Be sure to carefully dunk each chick’s beak into the water when they are placed in the brooder so they learn what it is.

Chicks are most fragile for the first three days and should be handled as little as possible. When shipped, they will arrive stressed and possible chilled and care during this period is the most crucial. For the first three days after hatching, chicks are still absorbing their egg yolk and will not require outside nutrition and therefore may eat sparingly. It is best practice to sanitize the feeders and waterers regularly, but be aware that all birds will leave manure in their water. Don’t let the water remain filthy, but don’t expect it to remain sterile, either. Likewise, a stinking bog will not yield thriving poultry, but it is unnecessary to fanatically clean the brooder constantly. When the chicks are fully feathered will vary by species (three weeks for quail, six weeks for chickens), but once this happens it will be time for your young feathered friends to graduate to their new pens.

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