保水剂施用层次对草坪生长及土壤水肥的影响
李佳岭1, 李龙保1, 廖宗文2, 刘天增1, 张巨明1*,*

The effect of different super absorbent polymer applying layer on turf growth and soil water and fertility
LI Jia-ling1, LI Long-bao1, LIAO Zong-wen2, LIU Tian-zeng1, ZHANG Ju-ming1
图4 实验起始-结束阶段土壤全N、有效N、速效P、速效K含量变化
Fig.4 The change of total nitrogen rate, available nitrogen content, available phosphorus content, available potassium content at the start and end time of the experiment