PLNT 1213 Lecture Notes - Lecture 25: Taproot, Trifluralin, Atrazine
Document Summary
History: believed center of origin is approximately modern day iraq, cultivated in asia 3000 bc, arrived in the us in 1600"s. Economic importance: 17 million acres (2003, china, india, myanmar, sudan, uganda, texas, arizona, new mexico, oklahoma, kansas. 100,000 acres in texas, oklahoma, and kansas in 2010. Uses: in us, often grown under contract, seeds (35%) Used on baked goods: edible oil (65%) Seeds are around 50% oil (similar to peanut, greater. Use in rotations than soybean: can be planted as double crop after wheat. Strong dry-down conditions: can be planted behind failed cotton. Number one goal historically: numerous plant-back restrictions, since drought, has been grown more as a primary summer crop. Can grow with less than 18 inches of water. Must be active water: use less water than sorghum, cotton, soybean, peanut, or corn, has a deep taproot. Early season drought stress can be more harmful. Planting and flowering are most important times for water.
