Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (5): 8-13.doi: 10.11924/j.issn.1000-6850.casb18100025

Special Issue: 玉米

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Covering Methods: Effects on the Growth, Yield and Water Use Efficiency of Rain-fed Forage Maize

Zhou Yu’an1, Liu Yuhua1,2(), Zhang Lifeng1,2   

  1. 1 College of Agronomy, Agricultural University of Hebei, Baoding Hebei 071000
    2 Zhangbei Agricultural Resource and Ecological Environment Key Field Research Station, Ministry of Agriculture, Zhangjiakou Hebei 076450
  • Received:2018-10-10 Revised:2019-01-10 Online:2020-02-15 Published:2020-02-21
  • Contact: Liu Yuhua E-mail:hblyh@126.com

Abstract:

To promote the stable and high yield and water use efficiency of forage maize in dry land of Bashang alpine and semi-arid region in northwest Hebei Province, the treatments of open-field cultivation (CK), double ridge and furrow mulching(DM), micro-ridge mulching(MM) and mulching under soil(UM) were conducted to study the effect on leaf area index, dry matter accumulation, soil moisture, yield, and water use efficiency at Zhangbei Agricultural Resources and Ecological Environment Key Field Research Station of the Ministry of Agriculture in 2016-2017. The results showed that in the wet year, the DM treatment had the best effect. Compared with those of CK, the leaf area index, dry matter accumulation and soil water storage of DM were increased by 36.45%, 70.24% and 13.25%, respectively, and the yield and water use efficiency were increased by 67.24% and 87.66%, respectively. In the year of water shortage, the effect of UM treatment was the best, which increased the yield by 71.31% and the water use efficiency by 81.69% compared with CK. DM is an effective technique for improving the yield of forage maize and efficient use of precipitation in cold and arid areas. UM is more suitable for water efficient production of farmland with rich soil water storage.

Key words: film-mulching modes, forage maize, yield, water use efficiency

CLC Number: