【摘要】 在冀东褐土区花生田间施用石膏，对花生经济性状和植株各部位钙、镁含量有明显影响，并显著提高花生产量。石膏经济最佳施用量和最高产量施用量分别为３５８．９ｋｇ／ｈｍ２和３８６．０ｋｇ／ｈｍ２，经济合理施用量为３３１．５８～３４５．３５ｋｇ／ｈｍ２，在此范围内，花生增产１９．０６％～１９．２３％。更多还原

【Abstract】 The experinient was in meadow cinnamon soil. The results indicated that the applicationof gypsutn could effect the peanut economic characters and calcium and magnesium accumula-tion of each position of the peanut plant evidently,and increased the yield significantly。 Theeeonomic optimum gypsum fertilizer rate was 358. 9 kg/hm2,and the highest yield′s gypsumfertilizer rate was 386. 0 kg/hm2,the economie rational gypsum fertilizer rate was 331.78～345.35 kg/hm2,within the limits,the yield increased by 19.06%～19.23%。更多还原