施肥对五节芒热值和表型性状的影响

对五节芒Miscanthus floridulus进行施肥措施研究氮肥、磷肥、钾肥对其灰分含量、热值以及表型性状方面的影响。采用正交试验设计，以热值、灰分含量、单株高度、地径、茎叶比、产量等为指标，研究不同氮磷钾配比对五节芒热值和表型性状的调控效应。结果表明，不同施肥水平对叶干质量热值、叶灰分含量、茎灰分含量、单支高度、地径、茎叶比达到显著影响，但对产量影响不显著。氮、磷、钾最佳组合为尿素（300 kg/hm2）+过磷酸钙（600 kg/hm2）+氯化钾（50 kg/hm2）时，五节芒灰分含量低，热值高；氮、磷、钾最佳组合为尿素（300 kg/hm2）+过磷酸钙（200 kg/hm2）+氯化钾（200 kg/hm2）时，五节芒的表型评价指标高。

Effect of fertilization on the caloric value and morphological properties of Miscanthus floridulus

The effect of nitrogen fertilizer,phosphate fertilizer and potassium fertilizer on the caloric value,ash content and morphological properties of Miscanthus floridulus were studied.The orthogonal design was used to determine the effects of N,P and Kcombinations on caloric value,ash content,plant height,stem diameter,ratio of stem to leaf and yield.The results showed that differences of caloric values in leaf,ash quantity of leaf and stem,plant height,stem diameter among different combinations were significan...