土壤管理上生草法有什么优缺点？ -题库考试答案搜索网

土壤管理上生草法有什么优缺点？

问答题

2022-04-19 10:44

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正确答案

用种植草来控制地面，不耕作。一般选择禾本科、豆科等牧草种植，通过刈割控制过旺的生长和增加一定的产草量。此法在果园、风景园林和大面积公共绿地（草坪）均可施用，欧美等发达国家已广泛使用在果园和风景园。
其优点是：
a保持和改良土壤理化性状，增加土壤有机质；
b林的土壤管理上。保水、保肥、保土作用显著；
c使种植园有良好的生态平衡条件，地表昼夜和季节温度变化减小，利于根系生长；d便于机械化作业，管理省工、高效。但是，生草法易造成间作植物和生草类与果树和园林树木在养分和水分上的竞争，如氮素营养，以果树、花木与禾本科植物的竞争最为明显，而与豆科植物的竞争则不明显

试题解析

标签：第二节园艺植物的栽培农学大学试题

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