抗盐改土肥在盐碱地棉花上的应用效果研究

The Study of Application Effect of Salt-Tolerance & Soil-Improvement Fertilizers on Cotton of Saline-Alkali Land

摘要: 通过田间试验，研究了抗盐改土肥在盐碱地棉花上的应用效果。结果表明，与农民习惯的速效肥处理相比，三个抗盐改土缓释肥处理均表现出优势，综合效果，则(抗盐改土缓释肥1#)优于(抗盐改土缓释肥2#)优于(抗盐改土缓释肥3#)。以抗盐改土缓释肥1#效果最好，较速效肥料增产32.6%，产量达到4066.5 kg/hm²。氮素利用率提高16.47个百分点，达到49.13%；土壤pH降低0.08个单位，土壤水溶性盐含量降低9.32%。

Abstract: The application effect of salt-tolerance & soil-improvement fertilizers on cotton of saline-alkali land was studied by field experiment. The result showed that three treatments of salt-tolerance & soil-improvement fertilizers were better than farmer’s traditional available fertilizer treatment, (salt-tolerance & soil-improvement fertilizer 1#) better than (salt-tolerance & soil-improvement fertilizer 2#) better than (salt-tolerance & soil-improvement fertilizer 3#). Thereinto, salt-tolerance & soil-improvement fertilizer 1# was the best. Cotton yield treated by it was 4066.5 kg/hm², and increased by 32.6% compared with the cotton yield treated by traditional available fertilizer treatment. Nitrogen utilization treated by fertilizer 1# increased by 16.47%, soil pH decreased by 0.08 unit and soil salt content decreased by 9.32%.