“seedling gradation”的概念、定义、翻译、参考文献-科学参考

单词	seedling gradation
释义	seedling gradation Encyclopedia 农学〔苗木培育〕释 seedling gradation苗木分级对需要出圃的苗木按苗木质量标准进行等级划分。目的是使出圃苗达到国家规定标准，保证用壮苗造林，减少造林后的苗木分化现象，提高造林成活率和林木生长量。
随便看	Baxter constant Baxter four-coloring constant Baxter permutation bay Bayan, Barintai Bayan Bulag Fortress Bayanbulak Nature Reserve Bayan Har Shan Bayanhongor Bayanhot Zhen Bayankala-Songpan minerogenetic province Bayankhongor Province Bayan Ko: My Own Country Bayannaoer national geological park Bayannor Youth Science and Technology Museum Bayannur Plateau Bayannur Shi Bayan Obo Kuangqu Bayan Obo rare earth deposit Bayan-Ulgii Province Bayan Xian Baya War Bayaya baybolt Bay de Panamá

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