The experiments, proved that developmental quality of root system of cutting seedling and lignification degree of root system during seedling-laying are key factors to influence survival rate.
本文通过试验证实了扦插根系发育质量与倒苗时根系木质化程度是影响定植苗成活的关键。
The method of the invention guarantees the safety of the ascending data transmission in the Ethernet passive coaxial network (EPCN) system from the root, and the service quality is greatly improved.
本发明从根本上 保证了以太网无源同轴网络（EPCN）系统中上行数据传输的安全性，大大提高 了业务服务质量。
Wheat population quality, root system distribution, grain yield and quality were studied under different fertilizer application treatment in the condition of superhighyielding wheat cultivation.
在小麦超高产栽培条件下利用不同施肥量和不同施肥比例的处理，研究了小麦群体质量、根系分布、子粒产量和品质。
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