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研究了盐碱地稻田旱作后土壤肥力变化及其对作物生长的影响。结果表明,滨海滩涂盐碱地在水田改旱后土壤盐分呈现上升趋势,而土壤pH呈现下降趋势;不同培肥方法对水田改旱后土壤盐分、pH、土壤速效养分及有机质的影响作用不同,石膏处理能明显降低土壤pH值;绿肥处理能增加土壤速效养分和有机质含量;有机肥能抑制和延缓土壤盐分上升、降低土壤pH值、明显增加土壤速效养分和有机质含量,最终促进作物生长,增加作物产量。
The change of soil fertility and its effect on crop growth after salinized paddy field was studied. The results showed that the salinity of saline-alkali land in the beach increased after the drought in paddy field, while the pH of the soil showed a downward trend. The effects of different fertilization methods on the salinity, pH, available soil nutrients and organic matter after paddy field drought were different, Can significantly reduce soil pH value; green manure treatment can increase soil available nutrients and organic matter content; organic manure can inhibit and delay soil salt rise, reduce soil pH, significantly increase soil available nutrients and organic matter content, and ultimately promote crop growth and increase crop yield .