Effects of Super Absorbent Polymer on Characteristics of Soil Evaporation and Soil Aggregation Under Different Fertilizer Treatments

LI Ji-cheng; ZHANG Fu-cang; SUN Ya-lian; LI Zhi-jun; LUO Peng

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Effects of Super Absorbent Polymer on Characteristics of Soil Evaporation and Soil Aggregation Under Different Fertilizer Treatments

- Effects of Super Absorbent Polymer on Characteristics of Soil Evaporation and Soil Aggregation Under Different Fertilizer Treatments
- Bulletin of Soiland Water Conservation Vol. 27, Issue 2, Pages: 48-53(2008)
- 作者机构：
  
  1. 西北农林科技大学旱区农业水土工程教育部重点实验室, 陕西杨凌,712100
  2. 中国科学院研究生院,北京,100049
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2008
- 稿件说明：
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LI Ji-cheng, ZHANG Fu-cang, SUN Ya-lian, et al. Effects of Super Absorbent Polymer on Characteristics of Soil Evaporation and Soil Aggregation Under Different Fertilizer Treatments[J]. Bulletin of Soiland Water Conservation, 2008, 27(2): 48-53.
DOI：

LI Ji-cheng, ZHANG Fu-cang, SUN Ya-lian, et al. Effects of Super Absorbent Polymer on Characteristics of Soil Evaporation and Soil Aggregation Under Different Fertilizer Treatments[J]. Bulletin of Soiland Water Conservation, 2008, 27(2): 48-53. DOI：

摘要

通过在两种质地土壤中施加"科瀚98"保水剂与肥料配比对土壤累积蒸发量及土壤团聚体含量的变化、分布及养分状况的影响进行了研究。结果表明

土壤累积蒸发量曲线可以用幂函数给予描述。土壤中的团聚体含量随着保水剂用量的增加而增加

其中质地较轻的黄绵土较质地重的土的土壤团聚体数量增加较多;保水剂与肥料共同作用时

肥料用量越大

土壤团聚体含量越低。土壤团聚体中的NO

-N和NH

-N含量随着保水剂用量的增加而增加

同时其贮量也得到相应的增加。

Abstract

Effects of the "Kehan 98" super absorbent polymer(SAP) and fertilizer proportion on the characteristics of soil evaporation and soil aggregation were investigated using two soils.Results indicated that the curve for accumulated soil evaporation with or without SAP and fertilizer applications could be expressed by a power function.The quantity of soil aggregates increased with the increased SAP.Soil aggregation in the Huanmian soil

a lightly textured soil

increased significantly compared with the Lou soil

a heavily textured soil.When both SAP and fertilizer were applied

soil aggregates were reduced with an increase in the quantity of fertilizer.The contents of nitrate nitrogen and ammonium nitrogen in different soil aggregates increased with the increased SAP and its storage content increased correspondingly.

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