[1]XU Zijun,WANG Xiyuan,SHI Qingdong,et al.Analysis of Impact of Different Super Absorbent Polymer on Comprehensive Efficiency of Maize Growth Based on the DEA Model[J].Research of Soil and Water Conservation,2017,24(06):160-166.
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Analysis of Impact of Different Super Absorbent Polymer on Comprehensive Efficiency of Maize Growth Based on the DEA Model

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 24 Number of periods: 2017 06 Page number: 160-166 Column: Public date: 2017-11-24
Title:
Analysis of Impact of Different Super Absorbent Polymer on Comprehensive Efficiency of Maize Growth Based on the DEA Model
Author(s):
XU Zijun1,2, WANG Xiyuan1,2, SHI Qingdong1,2, CHENG Jiao3, LI Hao1,2, XU Wanting1,2, WANG Wei1,2
1. College of resources and environmental science, Xinjiang University, Urumqi 830046, China;
2. Key Laboratory of Xinjiang Oasis Ecology, Xinjiang University, Urumqi 830046, China;
3. Xingjiang Institute of E-cology and GeograpHy, China Academy of Sciences, Urumqi 830046, China
Keywords:
super absorbent polymers; DEA; high temperature repeatedly absorbing water; comprehensive efficiency
CLC:
S482.8
DOI:
-
Abstract:
In order to further promote the reasonable application of super absorbent polymer r(SAP) in the agricultural production and ecological restoration in arid areas, using the DEA model, we evaluated the comprehensive efficiency of biological growth when different SAPs were applied to desert soil in arid area to promote biological growth, thus the most efficient SAPs were determined. This study selected three SAPs (AA-AH, KCE and PAA), the basic properties of three SAPs were tested firstly, then SAPs were applied to the experiment of maize planting. The results were analyzed by DEA model. The results are as follows. (1) The salt tolerance of PAA is the best, the environmental persistence of AA-AH is the best, and the side effect of AA-AH ton the soil is the fewest. (2) All three SAPs can significantly improve the sprouting rate of maize and the water retention of soil, the AA-AH has the best effect on the water retention and PAA has the best effect on increasing maize plant height. Higher concentrations of SAPs cannot improve the soil water retention significantly, but different SAPs have different performance in the same concentration, KCE has the best effect on increasing the ground biomass of maize in the concentration of 20 g/m2 and AA-AH has the best effect he concentration of 40 g/m2. The comprehensive evaluation proved that the comprehensive efficiency of all three SAPs could reach DEA effective value in the concentration of 0.6 g, the growth efficiency of maize all decreased when the concentration of three types of SAPs reached 1.2 g, reduced rate decreased in the order:PAA > KCE > AA-AH. The result shows that AA-AH has the best effect in desert soil under low concentration. Conclusion demonstrated that the SAP has good application prospect in the agricultural production and ecological restoration in arid areas. DEA model can analyze and evaluate the most suitable one from large variety of SAPs, this study provides theoretical basis for increasing the comprehensive efficiency of SAPs on plant growth and the reasonable application of SAPs. The absorption capacity of PAA in deionized water, 0.9% NaCl solution, alkali water, tap water, well water and soil leaching liquor were better than the other two super absorbent polymer. The suction force ratio of three super absorbent polymers decreased with repeated suction increase under 70 celsius system, the repeated suction capacity of AA-AH is the best. The water retention of super absorbent polymers increased with the concentration, the water retention of KCE in the concentration of 0.6 g is the best, and the water retention of AA-AH in the concentration of 1.2 g is the best. the pH of soil increases with the super absorbent polymers concentration, the sequence is KCE > PAA > AA-HA. The germination rate of maize and drought resistance significantly increased (p<0.05), which AA-HA super absorbent polymer increased capacity of drought resistant maize (p<0.05), but the best three kinds of super absorbent polymers concentration is more than 1.2 g after the drought resistance of maize does not significantly increase at the concentration of 0.6 g (p>0.05). The PAA increased maize height more than the other two super absorbent polymers significantly; KCE at the concentration of 0.6 g had the best effect on increasing maize ground biomass, AA-AH at the concentration of 1.2 g had the best effect on increasing maize ground biomass; when the three kinds of super absorbent polymers were at the concentration of 0.6 g, maize growth comprehensive efficiency could achieve the effective value of DEA, when the concentration increased to comprehensive the efficiency of 1.2 g the growth of maize decreased, a decline sequence was:PAA > MP 3005 KCE > AA-HA. This study provides theoretical basis for the research of DEA model in the evaluation of the comprehensive efficiency of super absorbent polymers on plant growth and the reasonable application of super absorbent polymers in arid area.
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