【摘要】 将初始表观性状基本一致的月季苗栽培于泥炭 -河砂混合基质中 ,用 4种营养液浇灌 ,观察月季的生长情况。在以铵态氮为唯一氮源的营养液中 ,及以铵态氮和硝态氮为氮源的营养液中 ,营养元素含量高 ,月季侧枝分化多、长度短 ,植株的营养生长阶段延长。更多还原

【Abstract】 When the shoots of Chinese rose with nearly the same characters are cultivated in mixed stroma of peat and sand, and are watered with four different nutrient solution , the effect of nutrient solution were studied. In the solution that contained higher concentration of nutrient elements, Lateral branches were differentiated more and their length were shorter, vegetative stage of plant was extended. Either the solution contained NH4-N or NH4-N and NO3-N ,same results wese showed.更多还原