实践证明,我国南方稻田种植多熟制是提高粮食产量和发展多种经营的一条有效途经。多熟要求高产。显然,掌握合理施肥是个重要问题。所谓“合理施肥”可以理解为一是指在多熟制的全年各季作物中,不同种类的肥料需要合理布局。例如一年三 Practice has proved that the cultivation of paddy fields in southern China is an effective way to improve grain yield and develop diversified operations. More cooked requires high yield. Obviously, to master the rational fertilization is an important issue. The so-called “reasonable fertilization” can be understood as one refers to the multi-cooked throughout the year crops, different types of fertilizer need rational layout. For example, three a year