| 王丹,黄超,李小东,刘娟,张凤华.脱硫石膏配施不同量有机物料对盐碱土壤改良效果及作物产量的影响[J].干旱地区农业研究,2019,37(1):34~40 |
| 脱硫石膏配施不同量有机物料对盐碱土壤改良效果及作物产量的影响 |
| Effects of different amount of organic materials combined with desulfurized gypsum on soil improvement and crop yield in saline-sodic soil |
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| DOI：10.7606/j.issn.1000-7601.2019.01.05 |
| 中文关键词: 脱硫石膏 有机物料 盐碱土壤 作物产量 |
| 英文关键词:FGD gypsum organic materials saline-sodic soil crop yield |
| 基金项目:兵团科技攻关与成果转化项目（2016AD022）；国家重点研发计划课题（2016YFC0501406） |
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| 中文摘要: |
| 以新疆玛纳斯河流域石河子绿洲盐碱地为研究对象，研究滴灌条件下脱硫石膏与不同量有机物料配施对盐碱土壤改良效果及作物产量的影响。采用微区试验方法，以单施脱硫石膏为对照（CK 1 000 kg·666.7m-2），设计了3种施用量有机物料配施处理：A(1 000 kg·666.7m-2+25 kg·666.7m-2)、B(1 000 kg·666.7m-2+50 kg·666.7m-2)、C(1 000 kg·666.7m-2+100 kg·666.7m-2)。结果表明：脱硫石膏与有机物料配施均显著降低耕层土壤pH值和电导率，增加土壤孔隙度；3个处理0~10 cm和10~20 cm土层土壤中大团聚体分别较对照增加了9.96%、20.23%、33.50%和7.37%、20.54%、24.90%；耕层土壤中Na+的含量显著降低，Mg2+的含量显著增加；棉花籽棉产量分别较对照增加了5.77%、12.45%、17.96%。从农业生产的产投比考虑，综合土壤改良效果，脱硫石膏1 000 kg·666.7m-2+有机物料50 kg·666.7m-2配施模式效果较好。 |
| 英文摘要: |
| This study was conducted to study the effect of FGD gypsum with organic materials at different ratio on the improvement of saline sodic soil of alluvial fan in Manasi River Basin by monitoring improvement of soil quality and crop yield under drip irrigation. We used the micro zone test method, single FGD gypsum as control (CK:1 000 kg·666.7m-2) and 3 ratios of organic materials were applied: A(1 000 kg·666.7m-2+25 kg·666.7m-2), B (1 000 kg·666.7m-2+50 kg·666.7m-2) and C (1 000 kg·666.7m-2+100 kg·666.7m-2). The results showed that combination of FGD gypsum and organic material significantly decreased soil pH and conductivity, increased soil porosity. Soil aggregates (>0.25 mm) in 0~10 cm and 10~20 cm soil layers were increased by 9.96%, 20.23%, 33.50% and 7.37%, 20.54% and 24.90% by three treatments, respectively. The Na+ concentration in topsoil (0~20 cm) significantly decreased, and the Mg2+ concentration significantly increased, the cotton yield increased by 5.77%, 12.45%, 17.96% compared with the control,respectively. Considering the production input ratio of agricultural production and the effect of comprehensive soil improvement, the combination of 1000 kg FGD gypsum combined with 50 kg organic material/666.7m2 had the best result among all three treatments. |
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