杂交结缕草成坪期植株养分变化  

The nutrition changes of hybrid Zoysia at turf mature stage

作　　者：张如莲[1] 洪彩香[1] 

机构地区：[1]中国热带农业科学院农牧研究所,海南儋州571737

出　　处：《草业科学》2004年第9期80-82,共3页Pratacultural Science

摘　　要：对杂交结缕草Zoysiajaponica×Z tenuifolia成坪期的植株养分状况进行了分析。结果表明 :N ,P ,K是草坪草体内的三大营养元素 ,其含量大小为N >K >P。叶片养分质量分数参考性指标为 :N 1 86 9%～2 92 0 % ,P 0 192 %～ 0 4 10 % ,K 1 4 31%～ 1 5 74 % ,Ca 0 0 4 2～ 0 0 71% ,Mg 0 0 5 7%～ 0 0 79% ;根系养分质量分数参考性指标为 :N 0 876 %～ 1 5 6 1% ,P 0 119%～ 0 14 3% ,K 0 5 5 9%～ 0 82 4 % ,Ca 0 0 30 %～0 0 39% ,Mg 0 0 2 4 %～ 0 0 4 2 %。Plant nutrition status of hybrid strain from Zoysia japonica crossed Z.tenuifolia were analyzed. The results showed that N?P?K are the three elements in turfgrass, the content is N>K>P. The foliar nutrient indexes were 1.869%～2.920% for N,0.192%～0.410% for P, 1.431%～(1.574%) for K,0.042～0.071% for Ca and 0.057%～0.079% for Mg.The root nutrient indexes were N: 0.876%～1.561%,P: 0.119%～0.143%,K: 0.559%～0.824%,Ca: 0.030～0.039% and Mg: 0.024%～0.042%?

关 键 词：杂交结缕草 成坪期 植株养分 分析 

分 类 号：S688.4[农业科学—观赏园艺]