AN ECONOMIC ANALYSIS OF A CORN-SOYBEAN CROP ROTATION UNDER VARIOUS INPUT COMBINATIONS IN SOUTH CENTRAL TEXAS

Eight input combinations of commercial fertilizer, insecticides, and herbicides on a corn-soybean crop rotation in the Brazos River Bottom of Texas are evaluated. Input combinations which do not fully utilize all three inputs are consistently ranked higher by all criteria as the preferred input strategy for the corn-soybean rotation system. These results, which indicate limited input crop rotations that fall somewhere between the extremes of conventional agricultural production and organic agriculture, deserve further attention as a possible production alternative.corn, limited input, soybean, Crop Production/Industries,

Long-term accumulation of soil carbon and nitrogen in grazed bermudagrass pastures

Last updated: 10/22/201

Treatment and Seasonal Effects on Alfalfa Crude Protein Content

Last updated: 6/12/200

Annual Ryegrass Response to Limestone and Phosphorus

Last updated: 6/9/200

Coastal Bermudagrass Response to Limestone and Phosphorus

Last updated: 6/9/200

Responses of bioenergy sorghum cell wall metabolism to agronomic practices

ABSTRAC

Oilseed Meal Effects on the Emergence and Survival of Crop and Weed Species

Oilseed crops are being widely evaluated for potential biodiesel production. Seed meal (SM) remaining after extracting oil may have use as bioherbicides or organic fertilizers. Brassicaceae SM often contains glucosinolates that hydrolyze into biologically active compounds that may inhibit various pests. Jatropha curcas SM contains curcin, a phytoxin. A 14-day greenhouse study determined that Sinapis alba (white mustard), Brassica juncea (Indian mustard), Camelina sativa, and Jatropha curcas applied to soil at varying application rates [0, 0.5, 1.0, and 2.5% (w/w)] and incubation times (1, 7, and 14 d) prior to planting affected seed emergence and seedling survival of cotton [Gossypium hirsutum (L.)], sorghum [Sorghum bicolor (L.) Moench], johnsongrass (Sorghum halepense), and redroot pigweed (Amaranthus retroflexus). With each species, emergence and survival was most decreased by 2.5% SM application applied at 1 and 7 d incubations. White mustard SM incubated for 1 d applied at low and high rates had similar negative effects on johnsongrass seedlings. Redroot pigweed seedling survival was generally most decreased by all 2.5% SM applications. Based on significant effects determined by ANOVA, results suggested that the type, rate, and timing of SM application should be considered before land-applying SMs in cropping systems

Phosphorus Effects on Magnesium Uptake by Forage Grasses

Last updated: 5/29/201

Long-term accumulation of soil carbon and nitrogen in grazed bermudagrass pastures

Last updated: 10/22/201

Phosphorus Effects on Magnesium Uptake by Forage Grasses

Last updated: 5/29/201