一、试验材料与方法 花生的高产栽培,一般要往土壤中施入大量的磷、钙肥,以满足植株营养生长和荚果发育的需要,增产幅度在10％左右,最高达30％以上。磷石膏是制造硝酸磷肥的付产品,来源丰富,价格便宜,又含有磷、钙、镁、硫等多种营养元素。为此,选在花生花期追施不同用量的磷石膏,以探讨 First, the experimental materials and methods of peanut cultivation, generally to the soil into a large amount of phosphorus, calcium fertilizer to meet the needs of plant vegetative growth and pod development, yield increase of about 10%, up to 30% or more. Phosphogypsum is to pay for the production of nitrophosphate, rich in origin, cheap, but also contains phosphorus, calcium, magnesium, sulfur and other nutrients. To this end, the election at the peanut flowering topdressing the amount of phosphogypsum to explore