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Effects of Full Straw Incorporation on Soil Fertility and Crop Yield in Rice-Wheat Rotation for Silty Clay Loamy Cropland

Zhao, Xinlin ; Yuan, Guoyin ; Wang, Huoyan ; Lu, Dianjun ; Chen, Xiaoqin ; Zhou, Jianmin

Agronomy (Basel), 2019-03, Vol.9 (3), p.133 [Periódico revisado por pares]

Basel: MDPI AG

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Título:
Effects of Full Straw Incorporation on Soil Fertility and Crop Yield in Rice-Wheat Rotation for Silty Clay Loamy Cropland
Autor: Zhao, Xinlin ; Yuan, Guoyin ; Wang, Huoyan ; Lu, Dianjun ; Chen, Xiaoqin ; Zhou, Jianmin
Assuntos: Aggregates ; Agricultural land ; Agricultural practices ; Agricultural production ; Bulk density ; Catalase ; Cation exchange ; Cation exchanging ; Cereal crops ; Crop rotation ; Crop yield ; Crops ; Enzymes ; Experiments ; Fertilizers ; Harvest ; Hydraulics ; Invertase ; Leachates ; Loam ; Microorganisms ; Moisture content ; Nitrogen ; Nutrients ; Organic carbon ; Phosphorus ; Physical properties ; Potassium ; Rice ; rice-wheat rotation ; Rotation ; Sandy soils ; Saturated soils ; Seasons ; Soil aggregates ; Soil density ; soil enzyme activities ; Soil fertility ; Soil improvement ; Soil investigations ; Soil layers ; soil nutrients ; soil organic carbon ; Soil testing ; Soil water ; Soils ; Straw ; straw incorporation ; Urease ; Water content ; Wheat
É parte de: Agronomy (Basel), 2019-03, Vol.9 (3), p.133
Descrição: This 2-year field experiment investigated the effects of full straw incorporation on soil fertility and crop yield in a rice-wheat (Oryza sativa L.–Triticum aestivum L.) rotation on sandy, loamy soil. Two treatments were tested: (i) straw removal (CK) and (ii) straw incorporation (STR). The STR significantly increased the wheat yield by an average of 58% compared with CK; however, no significant difference was found in the rice yield. Soil available nitrogen, phosphorus, and potassium in the 0–20 cm soil layer increased by more than 15% with STR compared to CK. The soil cation exchange capacity and organic carbon in the 0–20 cm soil layer increased by 8% and 22%, for STR compared to CK, respectively. Straw incorporation significantly elevated the soil saturated water content but decreased the soil bulk density compared with CK. Soil aggregates >2 mm were significantly increased after straw return. STR also notably increased the soil urease, invertase, and catalase activities in the 0–15 cm soil layer by 11.4%, 41.0%, and 12.9%, respectively, and the soil microbial carbon and nitrogen contents in the 0–20 cm soil layer by 59% and 54%. Therefore, full straw incorporation could significantly improve soil fertility and maintain crop yields for the study area.
Editor: Basel: MDPI AG
Idioma: Inglês

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Effects of Full Straw Incorporation on Soil Fertility and Crop Yield in Rice-Wheat Rotation for Silty Clay Loamy Cropland

Zhao, Xinlin ; Yuan, Guoyin ; Wang, Huoyan ; Lu, Dianjun ; Chen, Xiaoqin ; Zhou, Jianmin

Basel: MDPI AG

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