春谷早播不如迟播好我省北部的一年一季春谷区，春季十年九旱，长期以来，群众有清明开犁抢墒保苗种谷的习惯。这样往往由于地温低，底墒不足，导致萌发慢、苗势弱，会加重白发病、粟灰螟等病虫的发病程度；同时，还会由于清明谷穗分化期正赶上少雨的６月中旬，导致“胎里... Spring Valley early broadcast as late as I am a good spring in northern part of the province Spring Valley, Spring ten years nine drought, for a long time, people have Qingming plow grab moisture seedling Valley habit. This is often due to low ground temperature, inadequate soil moisture, resulting in slow germination, weak seedling will increase the incidence of white disease, corn borer and other pests and diseases; at the same time, but also due to the differentiation of Ching Ming is to catch the drizzle during mid-June , Resulting in "fetal ...