Study on the effect of different densities of silage corn to the leaf area, dry matter and fresh yield of both single plant and population in 2002~2003.
通过2002～2003年对青贮专用型玉米不同种植密度下，单株和群体叶面积、干物质积累及单位面积生物产量变化的研究，探讨单株和群体之间的相互影响。
Tea tree ( Camellia sinensis) blossoms every year and a lot of nutrients are consumed by itself during blooming and fruiting, resulting in decreased yield and quality of fresh tea leaf.
茶树每年都要开花结实，消耗大量的养分，导致茶树鲜叶产量减少和品质降低。
The famous excellent-quality tea has the character of "early supplement, long harvest period and high yield of fresh leaf and high benefit" in the spring season, when cultivated in plastic greenhouse.
利用塑料大棚覆盖栽培名优茶具有春茶上市期早、采摘期长、鲜叶产量高、效益好等优点。
The famous excellent-quality tea has the character of "early supplement, long harvest period and high yield of fresh leaf and high benefit" in the spring season, when cultivated in plastic greenhouse.
利用塑料大棚覆盖栽培名优茶具有春茶上市期早、采摘期长、鲜叶产量高、效益好等优点。
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