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苗木分级
释义
苗木分级
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。
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completion of a valued field
completion of T2 topological group
completion of T2-topological group
completion of T_2-topological group
completion of the square
completion strings
completion theorem
COMPLEX
Complex
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complex acid fracturing
complex adaptive financial systems
complex adaptive knowledge system
complex adaptive system
complex adaptive system theory
complex addition
complex admittance
complex agrometeorological disasters
complex algebra
complex algebraic surface
complex algebraic variety
complex amplitude
complex anal fistula
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complex analytic
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