几年来的冬小麦需水规律试验结果和生产实践,使我们认识到拔节水是小麦生长期中的一次关键水,此阶段灌水早、晚对产量影响极大。当地群众对此其说不一,为了适时浇灌拔节水,我们和当地生产队共同开展此项试验,结果表明,拔节水晚灌比早灌增产15.3%。一、自然条件和试验经过试验地位于太阳升公社沙沟子大队,平原壤土,地势平坦,土壤容重1.4,最 Several years of winter wheat water demand test results and practice of production, so that we recognize that water is a key wheat growing season, this stage early and late irrigation of great impact on the yield. The local people said differently. In order to irrigate jointing water in a timely manner, we conducted this experiment with the local production team. The results showed that irrigated spring water increased 15.3% more than that of early irrigation. First, the natural conditions and tests Tested in the sun orchards Shagouzi Brigade, plain loam, flat terrain, soil bulk density of 1.4, the most