Effect of Two Kinds of Soil Ameliorant on Saline Soil Improvement and Cotton Growth
Soil salinization has been the main obstacle for agricultural development in arid area. It has been a focus how to improve saline or alkaline soil. In this paper, the experiments of different ameliorants named Handilong and Hekang under different irrigation ways were carried out to test their respective effects on soil improvement, cotton growth and cotton yield. The experiments show that, after applying the ameliorants, the soil sallinity in cotton field under drip irrigation was decreased, the desalinizalion ratios were 30. 3% and 17. 7% respectively, but the desalinizalion ratio was only 10.4% in the contrast field; the analysis on soil Na+ composition by means of sodium adsorption ratio reveals that Handilong was the most effective in reducing detrimental ion Na+ in soil. Compared with the contrast group, the cotton plant growth including cotton height, density, number of fruit-bearing shoots, buds and bolls as well as their weight was significantly improved after applying Handilong and Hekang, the un-ginned cotton yields per hectare were as high as 3 549. 0 kg and 3 451. 5 kg and increased by 618 kg (21. 1%) and 522 kg ( 17. 8% ) , and the incomes per hectare were increased by 2 491. 5 and 1 371.0 yuan RMB, respectively.
国家科技期刊平台
NSTL
万方数据
维普
