The effects of prohibiting graze, rest grazing, different time for rest grazing and grazing strategies on grass productivity were studied.
本文研究了休牧、禁牧、不同休牧时间以及不同放牧制度对草群生产力的影响。
Grazing not only directly affects above ground part of grass communities and grassland soil, also indirectly influences underground productivity and material turnover.
放牧作为一种干扰因子，通过对群落地上部分和土壤的影响，导致地下部分的生产力和物质周转率的变化。
The effect of protection forest for pasture on grass quality and grassland productivity is the key for estimating its function.
草牧场防护林对牧草质量和草场生产力的影响是评价草牧场防护林效益的关键。
The productivity of second-year-old reed canary grass under various distribution of mineral oil contents was reported in this paper.
本文研究了第二年生草在不同矿物油投配量下的生产性能。
The productivity of second-year-old reed canary grass under various distribution of mineral oil contents was reported in this paper.
本文研究了第二年生草在不同矿物油投配量下的生产性能。
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