论文部分内容阅读
对雷林1号桉叶片营养诊断的采样时间、诊断方法,用临界值法和诊断施肥综合法(DRIS)诊断雷林1号桉施肥“中试”区的营养状况。结果表明:雷林1号桉叶片营养诊断的最佳采样时间是8月龄,其N、P、K临界浓度(g/kg)为 17.2、1.3、4.9,DRIS参数为 K/P、P/N和N/K。
Sampling time and diagnosis method of nutrition diagnosis of Eucalyptus eucalyptus leaves No.1 was used to diagnose the nutritional status of Eucalyptus and Elaeagnus angustifolia No.1 fertilization trial zone by using the critical value method and diagnostic fertilization synthesis method (DRIS). The results showed that the optimal sampling time of eucalyptus leaves was 8 months old, the critical concentrations of N, P and K were 17.2,1.3 and 4.9, the DRIS parameters were K / P and P / N and N / K.