Effects of different slow-release fertilizer application rate and management on agronomic traits and yield of hybrid late rice
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
万方数据
维普
