Liu Zhongmin,Shan Lun,Ma Guozhong,et al.Comprehensive Technique Approaches to Raise Grain Yield and Water Use of Spring Wheat in the Semiarid Area of South Ningxia[J].Research of Soil and Water Conservation,1998,5(01):55-64.
提高宁南半干旱区旱地春小麦产量及水分利用的综合技术途径研究
- Title:
- Comprehensive Technique Approaches to Raise Grain Yield and Water Use of Spring Wheat in the Semiarid Area of South Ningxia
- Keywords:
- semiarid area; spring wheat; grain yield; water use
- 摘要:
- 在自然降水条件下，采用化肥、有机肥、生长期覆盖、深耕等相结合的综合技术栽培春小麦可大幅度地提高其产量和水分利用效率。6年试验期间，在综合农业技术中，无论何种年型施用化肥（N和P2O5各135～150kg/hm22）对增产和水分利用效率的提高，约占50%；充足有机肥的作用约占30%；生长期间行间覆盖技术的作用约占20%；深耕25cm的作用不明显。
- Abstract:
- Under the natural rainfall conditions, the grain yield and water use efficiency of spring wheat were able to be increased largely by using comprehensive cultivation methods which include chemical fertilizer organic manure, mulch in growth season and deep tillage. The results show that during several years experimental period either drought or wet year by using chemical fertilizer (N and P2O5 were 135~150kg/hm2, separately) grain yield and water use efficiency were able to be raised about 50%. By using organic manure the increment was 30%. By mulch technique during growth season in the strip increment was 20%. However, by the deep tillage (25cm) the effect was not obviously.
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备注/Memo
收稿日期:1997-10-10。
基金项目:国家自然科学基金；宁夏自治区科委资助