石膏改良苏打碱土.Ⅰ.经济改良层石膏用量的确定

生态学杂志 ›› 2012, Vol. 31 ›› Issue (07): 1745-1750.

石膏改良苏打碱土.Ⅰ.经济改良层石膏用量的确定

金梁^1**,乌力更²,魏丹¹,胡克林³,赵丽兵⁴,魏鲁玉⁵

(¹黑龙江省农业科学院土壤肥料与环境资源研究所，黑龙江省土壤环境与植物营养重点实验室，黑龙江省肥料工程技术研究中心，哈尔滨 150086；²内蒙古农业大学生态环境学院，呼和浩特 010019；³中国农业大学资源环境学院，北京 100086；⁴黑龙江省双鸭山市农业委员会，黑龙江双鸭山 155100； ⁵黑龙江省鹤岗市东山区65426部队农副业基地，黑龙江鹤岗 154107）

出版日期:2012-07-10 发布日期:2012-07-10

Gypsum application in amelioration of soda-alkaline soil.Ⅰ. Determination of economical application amount.

JIN Liang^1**, WU Li-geng², WEI Dan¹, HU Ke-lin³, ZHAO Li-bing⁴， WEI Lu-yu⁵

(¹Heilongjiang Academy of Soil Fertilizer and Environment Resources Institute, Heilongjiang Key laboratory of Soil Environment and Plant Nutrition, Heilongjiang Fertilizer Engineering Technology Research Centre， Harbin 150086, China; ²College of EcoEnvironment, Inner Mongolia Agricultural University, Hohhot 010019, China; ³Resources and Environment Institute of China Agricultural University, Beijing 100086, China; ⁴ Shuangyashan Agriculture Committee, Shuangyashan 155100, Heilongjiang, China； ⁵65426 Force Agricultural and Sideline Basement, Dongshan District, Hegang city, Hegang 154107, Heilongjiang, China)

Online:2012-07-10 Published:2012-07-10

摘要/Abstract

摘要： 石膏可以改良盐碱土，室内土柱淋洗试验是验证其改良效果的方法之一。本文将石膏计划改良层定为40 cm，计算的定量石膏与0～10 cm土层混匀后，装填0～40 cm土柱于室内进行分次淋洗试验，将收集的滤液测定溶液离子组成并换算成盐分，应用推理计算法分析石膏溶解、转化、渗漏情况，以及石膏与碱性盐及交换性钠镁作用量。结果表明：将石膏与表层0～10 cm土层混匀条件下，4次灌水后，0～40 cm的土层物理通透性改善，渗透时间变小，pH由9.25降到8.20，碱化度均基本达到10，而且还有残余石膏，应用推理计算法得出，最经济纯石膏理论改良用量为0.05 t·hm^-2。

关键词: 朱砂叶螨, 玉米自交系, 丁布, 总酚, 胰蛋白酶抑制剂, 胰凝乳蛋白酶抑制剂

Abstract: Applying gypsum can ameliorate saline-alkali soil, and soil column leaching experiment is one of the methods to verify the amelioration effect. In this study, the ameliorating soil layer was defined as 0-40 cm, and an indoor soil column leaching experiment was conducted. The 0-10 cm soil layer was thoroughly mixed with the calculated amounts of gypsum, and the filtrate was collected to determine the ionic composition which was then converted into salt. Reasoning calculation method was adopted to calculate the amounts of applied gypsum in the processes of dissolution, transformation, and leakage as well as the amounts of the applied gypsum acted with alkaline salts and exchangeable sodium and magnesium. The results showed that after four times of leaching, the physical and chemical conditions of the soil column improved remarkably, infiltration time reduced, soil pH value decreased from 9.25 to 8.20, and soil exchangeable sodium percentage basically reached to 10. There still had some gypsum left. Theoretically, the most economical application amount of gypsum for the amelioration of soda-alkaline soil was 0.05 t·hm^-2.

Key words: Tetranychus cinnabarinus, Zea mays,  DIMBOA, total phenolic, trypsin inhibitor, chymotrypsin inhibitor.

金梁1**,乌力更2,魏丹1,胡克林3,赵丽兵4,魏鲁玉5. 石膏改良苏打碱土.Ⅰ.经济改良层石膏用量的确定[J]. 生态学杂志, 2012, 31(07): 1745-1750.

JIN Liang1**, WU Li-geng2, WEI Dan1, HU Ke-lin3, ZHAO Li-bing4， WEI Lu-yu5. Gypsum application in amelioration of soda-alkaline soil.Ⅰ. Determination of economical application amount.[J]. cje, 2012, 31(07): 1745-1750.

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