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通过对一个试验区肥料用量7年资料所进行的分析,说明有害积寒、乙烯利刺激、施肥和胶乳中元素间的关系,都显著影响胶乳总固形物养分含量。有害积寒显著影响当年和第二年的胶乳养分含量。其中当年有害积寒与N、Mg、Ca含量成正相关,与K含量成负相关。上一年有害积寒与当年K、Ca含量成正相关,与N、Mg含量成负相关。这些情况说明,胶乳总固形物养分含量不仅是胶树养分流失的指标,还应该是与产胶和排胶有关的生理过程的条件和结果。因此割胶生产上应采取相应的措施以适应这种变化。
Through the analysis of 7-year data on the amount of fertilizers in a pilot area, the results showed that harmful cold, ethephon stimulation, fertilization and the relationship between elements in the latex significantly affected the total solids content of the latex. Harmful accumulation of cold significantly affect the second and second year of the latex nutrient content. Among them, the harmful cold accumulation was positively correlated with N, Mg and Ca contents and negatively correlated with K content. The harmful cold accumulated in the previous year was positively correlated with K and Ca contents in that year and negatively correlated with N and Mg contents. These facts show that the total solid nutrient content of latex is not only an indicator of nutrient loss of gum trees, but also the conditions and results of the physiological processes related to gum production and gum elimination. Therefore, tapping production should take corresponding measures to adapt to this change.