Articles
Evaluating the potential of protected cultivation in rainfed agriculture in China: prospects for crop productivity improvement
Article number
1271_57
Pages
419 – 426
Language
English
Abstract
A 3-year field trail was conducted from 2015 to 2017 to evaluate the effects of six different protected cultivation systems on winter wheat productivity and soil fertility on the semi-arid Loess Plateau: (i) conventional cultivation (CK); (ii) straw mulching (SM); (iii) plastic-film mulching (PM); (iv) ridge-furrow without mulching (RF); (v) ridge-furrow with mulching (i.e. plastic-film mulched ridges and straw mulched furrows) (RFPS); (vi) green manuring (GM). Compared to CK, the grain yields under RFPS, PM and SM were significantly (p<0.05) increased by 51.8, 41.3 and 13.7%, and water use efficiency (WUE) was increased by 40.9% (p<0.05), 34.0% (p<0.05) and 11.19%, respectively.
Grain yields and WUE were not significantly affected by RF and GM. The grain yields and WUE under RFPS were significantly (pKLEINERDAN0.05) higher than those under the other treatments.
RFPS substantially increased the contents of soil organic C (5.1%) and easily oxidizable C (15.1%) and C pool management index (17.9%). Moreover, RFPS also increased the levels of soil microbial biomass C (57.0%), microbial biomass N (75.7%) and their respiration (25.1%) Our result suggest that the ridge-furrow mulching system with plastic-film mulched ridges and straw mulched furrows significantly increases winter wheat productivity and soil fertility in on the semi-arid Loess Plateau.
Grain yields and WUE were not significantly affected by RF and GM. The grain yields and WUE under RFPS were significantly (pKLEINERDAN0.05) higher than those under the other treatments.
RFPS substantially increased the contents of soil organic C (5.1%) and easily oxidizable C (15.1%) and C pool management index (17.9%). Moreover, RFPS also increased the levels of soil microbial biomass C (57.0%), microbial biomass N (75.7%) and their respiration (25.1%) Our result suggest that the ridge-furrow mulching system with plastic-film mulched ridges and straw mulched furrows significantly increases winter wheat productivity and soil fertility in on the semi-arid Loess Plateau.
Authors
G. Liu, Y. Zuo, L. Yang, Q. Zhang, L. Liang, E. Zhao, Y. Tong
Keywords
protected cultivation, rainfed agriculture, ridge-furrow mulching, dryland
Groups involved
- Division Greenhouse and Indoor Production Horticulture
- Division Precision Horticulture and Engineering
- Division Plant-Environment Interactions in Field Systems
- Working Group Nettings in Horticulture (subgroup of Protected Cultivation in Mild Winter Climates)
- Working Group Light in Horticulture
- Working Group Organic Greenhouse Horticulture
- Working Group Modelling Plant Growth, Environmental Control, Greenhouse Environment
- Working Group Protected Cultivation, Nettings and Screens for Mild Climates
- Working Group Vegetable Grafting
- Working Group Computational Fluid Dynamics in Agriculture
- Working Group Design and Automation in Integrated Indoor Production Systems
- Working Group Mechanization, Digitization, Sensing and Robotics
- Working Group Greenhouse Environment and Climate Control
- Commission Agroecology and Organic Farming Systems
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