1) density of larvae
出苗密度
2) seedling density
育苗密度
1.
Four aspects of the techniques of containerized nursery, including container size, growing medium, root control and seedling density, were systematically studied for Melia azedarach and Pterocarya stenoptera, which are two native afforestation and reforestation species in Jiangsu province.
本研究以江苏地区两个乡土造林树种苦楝(Melia azedarach)和枫杨(Pterocarya stenoptera )为试材,对容器育苗技术中的容器规格、基质配比、控根技术、育苗密度四个方面进行了系统的研究。
3) the density of sowing seedlings
保苗密度
4) seedling density
秧苗密度
1.
Experimental results showed that the positive effect of seedling density on seedling quality was enhaneed with the increasing of seedling age.
试验结果表明 :杂交中稻秧苗密度对苗质的影响随秧龄延长而加大。
5) speed of seeding
出苗速度
1.
The test had systematically studied that effect on speed of seeding and growth period ofQ iangsheng49 under the different sowing dates by daily mean temperature.
试验系统研究了在不同播期,日均温对玉米(强盛49)的出苗速度及生育期的影响,研究结果表明:播期和玉米的出苗速度以及生育期之间有真实的线性回归关系:Y=9。
6) seedling density
实生苗密度
补充资料：非密度制约因素(见密度制约因素)
非密度制约因素(见密度制约因素)
l焦非密度制约因素见生态因素、密度制约后
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条