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合理施肥是当前H·11648麻丰产栽培的主要措施之一.为此,我们从1979年以来开展了营养诊断指导施肥这方面的研究,做了一些探讨性的试验和调查工作,现根据试验结果和调查情况提出以下意见:一、采样时间、样片和部位的确定问题(一)、采样时间1、麻株在一年中叶片养分含量一般是年初高、年中低、年尾又回升(表略).这说明其养分含量随着麻株生长对养分的消耗以及土壤供肥情况和施肥水平的影响而变化.因此,采样的时间应根据不同的目的而不同,不宜硬性规定,但要求相对一致.
Reasonable fertilization is one of the main measures for the current H · 11648 hemp yield cultivation.To this end, we conducted a study on nutrition diagnosis and guidance fertilization in this area since 1979, and did some exploratory experiments and investigations. Based on the test results And the survey made the following observations: First, the sampling time, sample and site identification (A), sampling time 1, Hemp leaf nutrient content in the year is generally high at the beginning of the year, mid-year low, Slightly.) This shows that the nutrient content with the growth of nursery stock nutrient consumption and soil fertilization conditions and the impact of fertilization levels change.Therefore, the sampling time should be different according to different purposes, should not be rigid, but requires relative Consistent.