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| Effects of super absorbent with different application methods on soil moisture, soil salinity and Lycopersicon esculentum growth |
| Geng Guijun1,Bai Gangshuan2,Du Sheni2,Yu Jian3,Li Man4 |
| 1. Research Center of Soil and Water Conservation and Ecological Environment, Ministry of Education and Chinese Academy of Sciences,712100, Yangling, Shaanxi; 2. Institute of Soil and Water Conservation, Northwest A & F University, 712100, Yangling, Shaanxi；3.Institute of Inner Mongolia Hydraulic Research, 010020, Huhhot; 4.College of Agronomy, Inner Mongolia Agricultural University,010020,Huhhot: China |
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Abstract In order to determine the effects of BJ2101-L super absorbent with various application methods, field experiments were conducted to investigate their effects on soil moisture, soil salinity and Lycopersicon esculentum growth in Hetao irrigation district, Inner Mongolia. In this paper, BJ2101-L super absorbent was applied with four treatments of furrowing, mixing, holing and broadcasting. The results showed that furrowing, holing, mixing significantly increased soil moisture in 0-80cm soil layer, particularly there were significant effects during Lycopersicon esculentum fruit-setting stage, and soil moisture in furrowing, mixing and holing treatments increased by 12.66%, 9.40% and 7.50% in 0-80cm soil layer compared to the control respectively. BJ2101-L super absorbent inhibited the accumulation of soil salinity and could improve the survival rate of Lycopersicon esculentum seedlings. The yields in furrowing, mixing, holing and broadcasting treatments increased by 37.70%,30.93%, 26.35% and 12.87% compared to the control, and water use efficiency increased by 56.58%, 44.98%, 32.58% and 24.05% against the control respectively. Optimum application method of BJ2101-L super absorbent should be furrowing application in Hetao irrigation district in Lycopersicon esculentum production.
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Received: 18 February 2011
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