农谚说:“三分在栽,七分在管”。可见加强双晚杂交稻田的管理是一个极为重要的问题。 一、施肥我地生产实践表明,双晚杂交稻要获得亩产千斤以上高产,必须有较多的有效穗,而搭好丰产群体苗架是其基础。一般要求在8月15日前,每亩苗数达到20万以上,据近五年365丘高产田调查,要适时 Farmers say: “one-third planted, seven in control.” Therefore, it is an extremely important issue to strengthen the management of double late hybrid rice fields. First, fertilization My production practice shows that double late hybrid rice to get more than a kilogram of high yield per mu, there must be more effective panicle, and set up a high-yielding population seedling stand is its foundation. General requirements before August 15, the number of seedlings per acre reached 200,000 or more, according to the recent five years 365 multivariate yield survey to be timely