福建闽北山区农民,在长期的生产劳动实践中,创造了既经济又科学的“四头”经济集中施肥法。农谚说“塞肥十足吸,散肥易流失”。这充分说明在稻田集中施用少量肥料,即能满足水稻生长发育的需要,又适合山区田多劳力少的特种施肥方法。兹将“四头”经济集中施肥法介绍如下: (一)沾头法:又叫沾(?)根,是一种简单易行、花工 Farmers in the mountainous areas of northern Fujian and Fujian Province have created a “four-headed” economic concentrated fertilization method that is both economical and scientific in their long-term productive labor practices. Agricultural proverb said “plug fat suck enough, easy to lose bulk fertilizer.” This fully shows that concentrated application of a small amount of fertilizers in paddy fields can meet the needs of rice growth and development, but also suitable for mountainous areas and more labor-intensive special fertilization methods. The “four” economic concentrated fertilizer method is described below: (a) drench method: also known as dip (?) Root, is a simple and easy, flower workers