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盆栽和田间试验结果表明,在施NP肥基础上,配合每亩施用100-200kg磷石膏,有利于增加土壤有效钙、硫和磷等养分,改善了蔬菜作物对钙素等养分的吸收利用,明显促进了蔬菜作物的生长发育。NP肥+磷石膏处理比单施NP肥处理产量显著提高。甘蓝增产10.8%-13.1%,番茄增产9.6%-10.8%,芹菜增产9.2%-10.4%,白菜增产9.8%。经方差分析达到1%和5%极显著和显著水平。施用磷石膏改善蔬菜产品品质,适量施磷石膏对土壤主要农化性状无不良影响。
The results of potted and field experiments showed that application of 100-200kg phosphogypsum per acre on the basis of applying NP fertilizer was beneficial to increase available nutrients such as soil available calcium, sulfur and phosphorus and improved the absorption and utilization of nutrients such as calcium in vegetable crops. Significantly promoted the growth of vegetable crops. NP fertilizer + phosphogypsum treatment than NP fertilizer alone significantly increased the yield. Cabbage yield 10.8% -13.1%, tomato yield 9.6% -10.8%, celery yield 9.2% -10.4%, cabbage yield 9.8%. The ANOVA reached 1% and 5% at the extremely significant and significant level. The application of phosphogypsum to improve the quality of vegetable products, appropriate amount of phosphogypsum on the main agrochemical properties of the soil without adverse effects.