Mixed cropping with duck co-culture: an agroecological system to improve grain quality and farm profitability
文献类型： 外文期刊
作者： Li, Meijuan 2 ; Li, Ronghua 2 ; Zhang, Jiaen 1 ; Liu, Shiwei 2 ; Hei, Zewen 2 ; Wang, Qi 2 ;
作者机构： 1.South China Agr Univ, Coll Nat Resources & Environm, Wushan Rd, Guangzhou 510642, Peoples R China
2.South China Agr Univ, Coll Nat Resources & Environm, Dept Ecol, Guangzhou, Peoples R China
3.Guangdong Acad Agr Sci, Rice Res Inst, Guangzhou, Peoples R China
4.South China Agr Univ, Guangdong Prov Key Lab Ecocircular Agr, Guangzhou, Peoples R China
5.Guangdong Engn Technol Res Ctr Modern Ecoagr & Cir, Guangzhou, Peoples R China
6.Minist Agr, Key Lab Agroenvironm Trop, Guangzhou, Peoples R China
7.Guangdong Lab Lingnan Modern Agr, Guangzhou, Peoples R China
关键词： mixed cropping; rice-duck co-culture; genetic diversity; species diversity; grain quality; economic benefit
期刊名称：JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE （ 影响因子：4.1； 五年影响因子：4.2 ）
ISSN： 0022-5142
年卷期： 2023 年 103 卷 6 期
页码：
收录情况： SCI
摘要： BACKGROUNDPrevious studies found that mixed cropping combined with duck co-culture (MCDC) system could improve the efficiency of grain production and positively affect soil nutrient contents. However, the effects on grain quality, and profitable income have not been evaluated yet. In this study, a field experiment with four combinations of different rice varieties and ducks was conducted during both the early and late rice growing seasons. RESULTSThe field survey demonstrated that MCDC system significantly decreased the grain appearance of chalky rice rate and the chalkiness degree with an average of 56.82%, and 54.28%, respectively. Leaf soil plant analysis development (SPAD), photosynthetic rate, and aboveground dry weight were all improved in the MCDC and mixed-cropping systems, relative to the mono-cropping system. The net income obtained from the mono-cropping, mixed cropping (no ducks), and MCDC (with ducks) systems (from grain and ducks' meat) were 581.2 USD ha(-1) yr(-1), 1001.8 USD ha(-1) yr(-1), and 5242.1 USD ha(-1) yr(-1) in both growing seasons, respectively. CONCLUSIONPlanting genetically diverse rice varieties and co-culture with ducks increased rice growth rates, productivity and grain quality. The MCDC system would provide more ecological and economic benefits compared with the conventional mono-cropping system. (c) 2022 Society of Chemical Industry.
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