|February 4, 2002
The ryegrass control demonstration established in Brown County had a new flush of weeds emerge after a rain. The newly emerged weeds will make it difficult to determine the level of control achieved by the herbicides applied.
I have seen a lot of fields that look like they are short on Nitrogen. Wheat producers should consider making a fertilizer application as soon as soil temperatures increase. Between February 15 and March 15 the wheat will reach a stage of growth where nutrients and water uptake will increase significantly. If producers intend to get the most from the dollars invested on fertilizer they need to apply nutrients soon. Soil nutrient levels will need to be at a high level when the formation of the head occurs. It is important to have the soil nutrient level high when wheat is developing spikelets (shortly before rapid spring growth begins). If the head can be found above the soil surface the producer has lost the opportunity to impact the number of spikelets per head and the number of seeds per spikelet. Source of nitrogen has little to do with yield response. Apply the fertilizer that can be most efficiently and economically applied. To reduce leaf burn with high rates of liquid applicator, consider using dribble nozzles.
The cotton producers that like to plant in marginal soil temperatures should plant cottonseed with a cool-warm vigor index above 155. Both Delta and Pineland Seed Company and Paymaster Seed Company conduct a cool germination test and a warm germination test on every seed lot to be sold. Producers can request a copy of that information and by combining the numbers obtained from both tests determine the cool-warm vigor index for the seed lot. Only those varieties with a high vigor index (above 155) should be planted when cool soil temperatures exist at planting time.
Grain sorghum is grown on about 225,000 acres in West Central Texas. Soils suitable for the crop range from loamy sands to clay. A publication entitled "Grain Sorghum Production in West Central Texas" has recently been updated and the information can be viewed in two formats HTML or PDF (5,677,706 bytes).
The current contract on Sesame is $0.22 to $0.23 per pound. Contracts will be offered to previous growers first and then opened up to new growers--currently contracts are available. For information about sesame production refer to the following URL http://sanangelo.tamu.edu/agronomy/factshet/sesame.htm.
Continuing Education Credits (CEUs) will be offered to TDA license holders who attend the educational sections of the West Texas Farm & Ranch Show (Abilene, Texas) on February 19 & 20, 2002. The educational meeting scheduled the afternoon of February 19 will be worth 3 CEUs (1 IPM, 1 L&R, 1 General). On the morning of February 20, 3 CEUs (1 IPM, 2 General); the afternoon of February 20, 3 CEUs (1 IPM, 2 General). For additional information contact Gary Bomar at (915) 672-6048.
Don't forget that your TDA pesticide applicators license will expire the end of February. If you have not gotten your paperwork for renewal you may want to contact the TDA.
The information on soil and soil fertility that I have been presenting at the meetings is posted under "WWW Presentations" "WWW Presentations"--Master Gardner Program on Soil and Soil Fertility--2002.