【摘要】 施用适量稀土微肥可以提高辣椒叶片叶绿素ａ、ｂ的含量以及硝酸还原酶（ＮＲ）和过氧化氢酶（Ｃａｔａｌａｓｅ）的活性；从而使得植株的光合作用和对ＮＯ－３的还原作用两个方面相辅相成。喷施适量稀土能显著增加辣椒的单株果数，辣椒产量与稀土喷施浓度呈抛物线相关，理论上当稀土浓度为４０３ｍｇ·Ｌ－１时，辣椒有最高产量２７．０５３ｔ·ｈａ－１。更多还原

【Abstract】 Applying suitable rare earth micro-fertilizer was able to increase the content of chlorophyll a,b and the activity of nitrate reductase and catalase in hot pepper leaf.The two kinds of effects of sprayed rare earth microfertilizer on photosynthesis and NO-3 reduction were complement each other in hot pepper plant.Sprayed rare earth could notably increase fruit amount per plant of hot pepper.The hot pepper yield had square corrilinear correlation with the rare earth concentration.Theoretically,when the rare earth concentration was 403mg·L-1,the hot pepper yield was heighest.it was 27.053 t·ha-1.更多还原