漳州低产香蕉园养分状况与平衡施肥研究

51个低产香蕉园土样测试结果表明,漳州低产香蕉园土壤酸性较强,有机质、全N、碱解N、缓效K、速效K含量偏低,有效P、Zn、S含量较丰富,有效Ca、Mg、B含量较缺。51个叶片样品养分含量N、P、K元素平均值大部分都在适宜范围,Zn含量丰富,Ca、Mg、S、B含量多属低量水平。2年田间定位试验表明,N、K效应差异显著,提高N、K施用量对低产香蕉园香蕉产量影响明显,调节土壤酸度,补充Ca、Mg营养也是重要的增产措施。

BALANCED FERTILIZATION AND NUTRIENT CONDITION OF A LOW YIELD BANANA GARDEN IN ZHANGZHOU PREFECTURE

Test results of 51 soil samples taken from a low yield banana garden indicate that the soil is low in pH, organic matter, total N, available N, slowly available K, readily available K, available Ca, available Mg, and available B, but rich in available P, Zn, S. Test of 51-leaf samples show they were moderate in N, P and K, high in Zn but low in Ca, Mg, S and B. The two~year field experiment indiate that the effects of N and K differed significantly. A high application rate of N and K might obviously increase yield of banana in a garden low in soil fertility. Regulating soil pH and supplementing Ca and Mg are also important yield~increasing measures.