关键词: 水稻, 侧深变量施肥, 产量, 效益

Abstract:

Using Longgeng 31 as the test variety, an experiment on the application effects of different fertilization techniques (conventional fertilization, lateral depth quantitative fertilization, lateral depth variable fertilization) on rice was carried out at Qixing Branch of Beidahuang Agriculture Co., Ltd. The results showed that the growth process of rice was basically the same in all fertilization treatments. The tillering ability of rice treated with lateral deep variable fertilization was the strongest, with a tiller number of 13.6 per cluster, which was 0.4 and 0.3 higher than that of the conventional fertilization treatment and the lateral depth quantitative fertilization treatment, respectively. The rice yield of the lateral depth variable fertilization treatment was highest, reaching 9 085.5 kg/hm², which increased by 247.5 kg/hm² and 54.0 kg/hm² respectively compared to the conventional fertilization treatment and the lateral depth quantitative fertilization treatment. The lateral depth variable fertilization mainly increased yield by increasing the number of effective panicles. The benefit of lateral depth variable fertilization treatment is the highest, which is 298.5 and 192.3 yuan/hm² higher than conventional fertilization treatment and lateral depth quantitative fertilization treatment, respectively.

Key words: rice, lateral depth variable fertilization, yield, benefit