An Opportunity for Regenerative Rice Production: Combining Plastic Film Cover and Plant Biomass Mulch with No-Till Soil Management to Build Soil Carbon, Curb Nitrogen Pollution, and Maintain High-Stable Yield
文献类型： 外文期刊
作者： Lv, Shi Hua 1 ; Dong, Yu Jiao 1 ; Jiang, Yuan 1 ; Padilla, Hilario 2 ; Li, Joanne 2 ; Uphoff, Norman 3 ;
作者机构： 1.Sichuan Acad Agr Sci, Soil & Fertilizer Inst, Chengdu 610066, Sichuan, Peoples R China
2.Kadoorie Conservat China, Kadoorie Farm & Bot Garden, Tai Po, Lam Kam Rd, Hong Kong 999077, Peoples R China
3.Cornell Univ, SRI Int Network & Resource Ctr, Ithaca, NY 14853 USA
关键词： conservation agriculture; no tillage; residue return; plastic cover; biodegradable plastic film; sustainable crop intensification; rice cropping system; soil organic carbon; system of rice intensification; China
期刊名称：AGRONOMY-BASEL （ 影响因子：3.417； 五年影响因子：3.64 ）
ISSN：
年卷期： 2019 年 9 卷 10 期
页码：
收录情况： SCI
摘要： China has attained rice sufficiency with the increased use of nitrogen (N) fertilizer, but this has led to serious N pollution. China has the world's highest use of N with the lowest N use efficiency (NUE). Including livestock production, China's agriculture sector has surpassed industry as the greatest polluter of water. Using plastic film on raised-beds, combined with improved agronomic practices, can boost rice yield by 50% with 36% less N fertilizer use, 30% higher NUE, and stabilized the yield of 9.75 t ha(-1). It also counters the effects of drought and low ambient temperature. A six-year study was conducted combining no-tillage, crop-residue mulch, and plastic cover, alternating organic rice and rapeseed production. All the treatments, fertilized with biogas slurry and rapeseed meal, gave rice yields of 7.0 to 10.7 t ha(-1), well above China's average of 6.5 t ha(-1). In this time, soil organic matter increased from 1.6% to 4.2%. In the first four years, the combination of crop-residue mulch with plastic cover had a slightly higher yield than mulch alone. In the fifth and sixth years, the latter treatment surpassed the use of plastic cover with crop-residue mulch. Trials with a biodegradable film show that plastic pollution can be dealt with.
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