论文部分内容阅读
随着生产的发展,小麦产量提高到800斤/亩以上的生产队,由于氮肥施用量过大,往往造成小麦的倒伏和贪青晚熟,所以在1976—1977年研究小麦追施钾肥的肥效问题,以便探索解决高产小麦的贪青晚熟和倒伏问题。一、试验条件和处理试验是在历年小麦产量800斤/亩以上,土壤有机质含量1.5%左右的高度熟
With the development of production, the production team that increased the wheat yield to more than 800 kg / mu had the problem of fertilizer efficiency of wheat topdressing potassium fertilizer from 1976 to 1977 due to the excessive application of nitrogen fertilizer, which often resulted in the lodging of wheat and the over-ripening of wheat. In order to explore solutions to the late-ripening and lodging problems of high-yielding wheat. First, the test conditions and treatment test is in the calendar year wheat yield of 800 kg / acre above the soil organic matter content of about 1.5% highly cooked