Fertilization Method Influence on Rice Growth and Surrounded Water Pollution

Fertilization methods such as rice basal fertilizer showed different influences on rice growth, nitrogen loss reduction, N pollution on surrounded water environment. Deep application by rice basal fertilizer machine and all-layers wetness could enhance yield of 9%~14% more than normal fertilization method, nitrogen rice yield increased 55%~76%, nitrogen utilization rate improved 4.4%-13%. After deep application and layers wetness, most of nitrogen became NH4+ and adsorbed by soil. Therefore N in surrounded water was 60%~70% less than normal fertilization. It was significant for nitrogen loss reduction and water pollution control.