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Improving nutrient and water use efficiencies using water-drip irrigation and fertilization technology in Northeast China

文献类型： 外文期刊

作者： Fan, Jiangchuan 1 ; Lu, Xianju 1 ; Gu, Shenghao 1 ; Guo, Xinyu 1 ;

作者机构： 1.Beijing Agr Informat Technol Res Ctr, Beijing 100097, Peoples R China

2.Natl Agr Informat Technol Engn Res Ctr, Beijing 100097, Peoples R China

3.Minist Agr, Key Lab Agr Informat Technol, Beijing 100097, Peoples R China

4.Beijing Agr Internet Things Engn Technol Res Ctr, Beijing 100097, Peoples R China

关键词： Water-Drip irrigation; Fertigation; Nutrient balance

期刊名称：AGRICULTURAL WATER MANAGEMENT （ 影响因子：4.516； 五年影响因子：5.12 ）

ISSN： 0378-3774

年卷期： 2020 年 241 卷

页码：

收录情况： SCI

摘要： Fertilizer along with water-drip irrigation is the process of Fertilizer entering to the field with water, a new technology of combination with irrigation and Fertilizer, product of the combination with a precise and accurate irrigation and fertilizer. The filed experiments were conducted at two sites in Hei Longjiang province respectively in 2015 and 2016 to compare the effect of precision fertilization management and traditional management on maize plant height, aboveground biomass, leaf area index and yields. For two years, the precision fertilization management reduce the nutrient supply and did not affect maize growth and reduce grain yield. In 2015, the precision fertilization management reduce the nitrogen and phosphorus supply by 8 % and 10 %, but increase potassium supply by 15 %. In 2016, the precision fertilization management reduce the nitrogen, phosphorus and potassium supply by 9 %, 25 %, and 17 %. The maize plant height, leaf area index, aboveground biomass and yield did not significantly decrease due to the decrease in fertilizer application. As a result precision fertilization management increased the nutrients and rainfall use efficiency and net-profit. Thus proving fertigation help to increase maize production, which is of great significance for increasing food production.

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