Affiliation:
1. School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
Abstract
In order to study the effects of combined application of compound fertilizer and branch fertilizer on the growth and yield of machine-transplanted rice, four hybrid rice varieties were used as experimental materials, and four fertilization treatments were set up by completely random design: compound fertilizer (T0), compound fertilizer + conventional branch fertilizer (T1), compound fertilizer + (branch fertilizer − 20%) (T2), compound fertilizer + (branch fertilizer + 20%) (T3). The results showed that the branch fertilizer could effectively promote the early growth and rapid development of tillers, and increase the agronomic traits such as chlorophyll content, LAI and dry matter accumulation. Among the four varieties, the yield of the V4 variety was the highest under T3 treatment, which was 11,471.15 kg·hm−2, which was 37.34% higher than that of the control, and the yield increase effect was the most significant. The correlations showed that dry matter accumulation and LAI were significantly or highly significantly positively correlated with the number of effective spikes and yield, and the number of effective spikes was highly significantly positively correlated with the yield. In general, the application of pitchfork fertiliser increased the effective number of spikes and the number of grains per spike of each variety to different degrees, which effectively promoted the improvement of the rice yield.
Funder
high-efficiency utilization of multi-cropping planting resources and integration of high-yield and high-efficiency technology of machine technology integration in the southwest area
Yuehesimiao series direct seeding rice efficient cultivation technology integration and industrial application
Study on Water-saving and High-yield Cultivation Physiology and Its Supporting Technology of Direct Seeding Japonica Rice
Postgraduate Innovation Fund Project by Southwest University of Science and Technology
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