Evaluation on yield and benefit of no-tillage and aerial seeding technique model of rapeseed in paddy field of eastern Hubei

doi:10.14088/j.cnki.issn0439-8114.2022.09.002

Abstract

Abstract: In order to explore the production adaptability and practicability of no-tillage and aerial seeding （hereinafter referred to as no-tillage and aerial seeding） production mode of rapeseed with full straw returning in the paddy field in late-harvest paddy field, field experiments of rapeseed were carried out in Wuxue city, eastern Hubei province in 2018—2019 and 2019—2020. In the experiments, no-tillage and aerial seeding and conventional rotary tillage and direct seeding （hereinafter referred to as rotary tillage and direct seeding） were set to evaluate the differences in rapeseed yield, fertilizer use efficiency and economic benefits under the two modes. The results showed that no-tillage aerial seeding significantly increased rape yield, fertilizer partial productivity and economic benefits. Compared with rotary tillage direct seeding mode, no-tillage aerial seeding mode increased rapeseed yield by 216 kg/hm² on average, with an increase of 9.8%. The partial productivity of N, P and K increased by 8.1%, 151.2% and 147.6%, respectively. The planting input decreased by 1 116 yuan/hm² on average, and the net profit increased by 2 202 yuan/hm². The results showed that the no-tillage and aerial sowing mode of rape had the advantages of soil moisture grabbing and temperature sowing, straw returning, soil moisture preservation and nutrient recycling, one-time basic application of special slow-release fertilizer for rape, and mechanical trenching and waterlogging prevention. The effect of increasing production and saving income was remarkable. It was a practical, simple and efficient production mode.

Key words: eastern Hubei, late-harvest paddy field, rapeseed, no-tillage aerial seeding model, straw returning

CLC Number:

S565.4

CHEN Ling-ying, REN Tao, ZHOU Zhi-hua, CHENG Ying-de, LU Ming-xing, CHENG Tai, ZHOU Wei-feng, LU Jian-wei. Evaluation on yield and benefit of no-tillage and aerial seeding technique model of rapeseed in paddy field of eastern Hubei[J]. HUBEI AGRICULTURAL SCIENCES, 2022, 61(9): 8-12.

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