平榛叶片和土壤矿质营养年周期变化规律的研究

应用叶分析技术对平榛矿质营养年周期变化规律进行了研究．结果表明：随着物候期的进展，平榛叶片内矿质元素的含量有规律变化．但是，不同元素间变化规律有所差异．在结果枝和发育枝的叶片中变化规律基本相同．初步确定了平榛叶分析营养诊断的采样适期和采样部位．相关分析表明：土壤中营养元素的年周期变化规律与叶片中营养元素的年周期变化规律之间很少存在显著相关关系．

Research on the Annual Cycle Variation Law of Mineral Nutrient Element COntens in the Leaves of Siberian Filbert

A study of the annual cvcle variation of mineral nutrient element contents in theleaves of siberian filbert is carried out by leaf-analysis methoIt shows that the content of eachelement in siberian filbert leaves has a regulars variation with its phenological period advanced.But the law is different from each other.The law of variation in the leaves between developmentbranch and fruitage one are almost the same. The suitable poriod and part of sampling for leaf-analysis nutrient diagnosis of siberian filbert are deternuned preliminarily.Annual cycle variationlaw of nutrient element between roil and leaves has hardly ever notable conetic relation by correla-tion analysis.