从几年来的生产实践中看到,有的单位在指导生产时往往下达指令性的操作规程,不遵循自然环境因素和具体作物的生长规律,盲目规定或是生搬硬套以往的经验,这样往往给生产带来一定的损失。为探讨和解决这个问题,科学地指导生产,提高经济效益。仅将一年的试验结果归纳总结如下。 From the past few years of production practice, some units tend to issue mandatory operational procedures when directing production. They do not follow the laws of the natural environment and the growth of specific crops, and blindly stipulate or make use of rigid experience in the past. This often results in production Bring some loss. To explore and solve this problem, scientific guidance to production, improve economic efficiency. Only one year’s test results are summarized below.