论文部分内容阅读
近几年来,各地在总结小麦丰产经验中,对小麦生育阶段的群体结构和个体发育特点,做了大量的工作,为小麦丰产提供了重要的科学依据。但是在生产实践中,水肥措施的运用,不论现在还是将来,都是夺取小麦丰产的重要手段。只有水肥措施运用合理,才能既丰产又节约,达到高产、稳产、低成本的目的。因此,必须重视并大力开展小麦丰产的水肥措施研究。我们在大寨公社武家坪大队同贫下中农一起经过多年的实践,深刻地认识到适当的土壤水分是保证作物丰产的一个重要的环节。因为作物的需水绝大部分是从土壤中吸取而得到的,同时,土壤微生物的活动、肥料的分解、养分的转化和释
In recent years, various localities have done a great deal of work on the group structure and individual development characteristics of wheat during the stage of summing up wheat yield experience, and provided important scientific evidences for the wheat yield. However, in the production practice, the application of water and fertilizer measures, both now and in the future, are important means to seize the high yield of wheat. Only when water and fertilizers are applied reasonably, can both high yield and economy be achieved, and the goal of high yield, stable yield and low cost can be achieved. Therefore, we must attach importance to and vigorously carry out research on water and fertilizer measures of high yield of wheat. After years of practice with the poor peasants in Wujiaping’s brigade in Dazhai commune, we have profoundly realized that proper soil moisture is an important link in ensuring the high yield of crops. Because the vast majority of crop water is extracted from the soil, and at the same time, the activity of soil microorganisms, the decomposition of fertilizers, the transformation and release of nutrients