| Cite this article: | 高惠敏,王相平,屈忠义,等.脱硫石膏与有机物料配施对河套灌区土壤改良及向日葵生长的影响①[J].灌溉排水学报,0,():-. |
| GAO Hui-min,WANG Xiang-ping,QU Zhong-yi,et al.脱硫石膏与有机物料配施对河套灌区土壤改良及向日葵生长的影响①[J].灌溉排水学报,0,():-. |
|
| |
|
|
| This article has been：Browse 1527Times Download 0Times |
|
|
|
| DOI： |
|
| Effect of desulfurization gypsum combined with organic materials on soil improvement and sunflower growth in hetao irrigation area |
|
GAO Hui-min1, WANG Xiang-ping1, QU Zhong-yi2, YANG Jing-song1, Yao Rong-jiang1
|
|
1.State Key Laboratory of Soil and Sustainable Agriculture,Institute of Soil Science,Chinese Academy of Science;2.College of civil and water conservancy engineering, Inner Mongolia agricultural university
|
| Abstract: |
| 【Objective】To investigate the effect of desulphurization gypsum and organic material application on soil improvement and sunflower growth in hetao irrigated area.【Method】Control treatment(CK), single application of desulphurized gypsum (S), combined application of desulphurized gypsum and humic acid (SF) and combined application of desulphurized gypsum and fulcrum acid (SH) were tested by field experiment. Soil samples were collected from 0-40 cm soil depth to analyze soil salt content and pH value before plant sowing and after crop harvest. Plant growth indexes were measured during crop growing period and grain yield was measured at harvest time.【Results】The results showed that at 0-40 cm soil depth, the three kinds of soil amendments showed different degrees in salt-reducing effect, among which SF treatment had the best salt-inhibiting effect, which was 52.84% and 23.15% lower than CK treatment at the 0-20 cm and 20-40 cm soil layer, respectively. S treatment had the best pH reduction effect, and the pH was 0.23 units lower than that of CK treatment, followed by SH treatment, which was 0.19 units lower than that of CK treatment. SF treatment significantly improved grain yield, which was 51.63% more than that of control.【Conclusion】The application of different improvers had a certain positive effects on soil improvement and sunflower growth, among which the SF improver significantly decreased soil salt content and improved grain yield., which was the most suitable salt and alkali improver in the middle and heavy saline-alkali areas in hetao irrigation area. |
| Key words: Humic acid; Fulvic acid ; Soil improvement; Saline-alkali soil; Sunflower yield |
|
|
|
|
|
|
