摘要
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(300kg/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。
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 orthogohal 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 significant except the yield. The best fertilizer combination was urea （300 kg/hm^2） ＋ superphosphate（600 kg/hm^2）＋ KCI （50 kg/hm^2） and the higher caloric value and lower ash content could be reached. Under the combination of urea （300 kg/hm^2） ＋ superphosphate（600 kg/hm^2） ＋ KC1 （50 kg/hm^2）, the better morphological properties could be reached.
出处
《草业科学》
CAS
CSCD
北大核心
2009年第8期63-67,共5页
Pratacultural Science
基金
中科院重要方向性项目资助(KSCX2-G-027-4)
国家自然科学基金资助(30760024)
巴东民兴实业有限责任公司资助(074932A06)
关键词
五节芒
能源植物
热值
施肥
表型性状
Miscanthus floridulus
energy plant
caloric value
fertilization
morphological property
