中国古代称正方形及矩形为方田。李籍《九章算术音义》称“方田者，田之正也。诸田不等，以方为正，故曰方田。”
提出的对策是适当控制化肥施用总量，特别控制样板田、示范方的化肥施用量。
The strategy is to control the application amount, especially paying attention to the chemical fertilizer use of model production field.
间作（intercropping） 在同一田 地上于同一生长期内，分行或分带相 间种植两种或两种以上作物的种植方 式。
Intercropping is the growing of two or more crops with at least one crop planted in rows. in proximity to promote interaction between them.
应用推荐