In order to screen out the fertilizer management methods suitable for late rice production,reduce fertilizer cost and increase economic benefits,the effects of different slow-release fertilizer application rates and management methods on yield,agronomic traits and nitrogen efficiency were studied by using indica-japonica hybrid late rice Yongyou 7850.The results showed that under the same nutrient treatment,organic and inorganic slow-release fertilizer was beneficial to increase the effective panicle and grain number per panicle,and the yield of 667 m2 basal fertilizer with 30 kg and appropriate tillering fertilizer was 4.80%higher than that of conventional fertilization,and the agronomic efficiency of nitrogen fertilizer was the highest.Under the same cost,the yield of slow-release fertilizer was still 1.53%higher than that of conventional fertilization,and the agronomic efficiency of nitrogen fertilizer was significantly higher than that of conventional fertilization.The organic and inorganic slow-release fertilizer of double-cropping late rice should be 667 m2 basal fertilizer with 30 kg and total nitrogen at 10.7-12.0 kg.
Yongyou 7850slow-release fertilizeragronomic traitsagronomic efficiency of nitrogen fertilizeryield
NETL
NSTL
维普
万方数据
