| Effects of organic nutrition soil conditioners on physical and chemical properties of irrigated desert soil in Hexi area and economic profits of forage sorghum |
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| DOI：10.7606/j.issn.1000-7601.2017.03.40 |
| Key Words: organic nutrition soil conditioners irrigated desert soil physical and chemical properties forage sorghum productivity profit |
| Author Name | Affiliation | | ZHANG Chun-mei | College of Agriculture and Biology Technology, Hexi University, Zhangye, Gansu 734000, China
Characteristics of the Hexi Corridor resources utilization of Provincial Key Laboratory, Zhangye, Gansu 734000, China | | YAN Zhi-bin | Gansu Dunhuang Seed Seed Company, Jiuquan, Gansu 735000, China | | WANG Xue | Gansu Dunhuang Seed Seed Company, Jiuquan, Gansu 735000, China | | YAN Fu-hai | Gansu Dunhuang Seed Seed Company, Jiuquan, Gansu 735000, China | | QIN Jia-hai | Gansu Dunhuang Seed Seed Company, Jiuquan, Gansu 735000, China | | CHENG Hong-yu | College of Agriculture and Biology Technology, Hexi University, Zhangye, Gansu 734000, China
Characteristics of the Hexi Corridor resources utilization of Provincial Key Laboratory, Zhangye, Gansu 734000, China | | XIAO Zhan-wen | College of Agriculture and Biology Technology, Hexi University, Zhangye, Gansu 734000, China
Characteristics of the Hexi Corridor resources utilization of Provincial Key Laboratory, Zhangye, Gansu 734000, China |
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| Abstract: |
| In the face of soil hardening, low organic matter, weak water storage and low yield caused by long-term chemical fertilization in Hexi Corridor, Gansu province, an orthogonal experiment was conducted to select the composition for an organic nutrition soil conditioner. A field experiment was taken to study effects of organic nutrition soil conditioners on the physic-chemical properties of irrigated desert soil and economic profits of forage sorghum. The results showed that the effect of raw material for the organic nutrition soil conditioner ranked as follows: specific fertilizer of Sorghum, modified furfural residue, water retaining agent and polyvinyl alcohol. The weight ratio of furfural residual, water retention agent, specific fertilizer of forage sorghum and polyving akohol equal to 0.9375∶0.0025∶0.0563∶0.0037 for the best formula. There was a positive correlation between fertilization quantity and soil porosity, moisture capacity, available nutrients, agronomic traits, economic characteristic and yield of forage sorghum. The optimum economical application rate was 24.00 ton per hm2 and the theoretical yield was 3.08 ton per hm2. It could be concluded that organic nutrition soil conditioners could improve the physical, chemical and biological properties of the soil. In addition, the soil conditioner also increased the profit and yield of forage sorghum in the irrigated desert soil. |
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