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牧草建设中防除有害杂草的主要方法是刈割和化学防除,但增加饲草成本,且防效不理想。一种新兴的杂草防除方法是利用植物间的竞争或产地管理以减少或防止杂草生长。此法是利用各种植物出苗的时间、落叶的强度和频度、从土壤中吸收水分、养分的能力以及生长季节等生物学特性,通过植物间的生存竞争确立饲草在牧场上的主导地位。
The main methods of controlling harmful weeds in pasture construction are cutting and chemical control, but the cost of forage is increased, and the control effect is not satisfactory. One emerging approach to weed control is to use plant-to-plant competition or place of origin management to reduce or prevent weed growth. This method is the use of a variety of plant emergence time, the intensity and frequency of deciduous leaves, the ability to absorb moisture from the soil, nutrients and growing seasons and other biological characteristics of competition through the establishment of forage plants in the dominance of ranching .