论文部分内容阅读
该实验采用循环潮水式灌施营养液法对适合白桦容器育苗栽培用的营养液浓度进行了比较试验 .对不同营养液处理的试材白桦生长状况 (包括植株生长量、叶绿素合量、光合能力及叶片营养元素含量等 )进行分析比较 ,结果表明 :不同浓度处理的欧洲盆花标准营养液Sonneveld液中 ,以 1S浓度处理的白桦小苗生长表现最佳 .用山崎肯哉公式计算得出 ,适合白桦容器育苗栽培的最佳营养液配方为大量元素 (mmol·L- 1 ) :N 9 16 ,P 3 48,K 3 78,Ca3 2 5 ,Mg 0 79.
In this experiment, the nutrient solution method of recirculating tidal irrigation was used to compare the concentration of nutrient solutions suitable for the cultivation of birch containers.The growth of birch samples (including plant growth, chlorophyll content, photosynthetic capacity And leaf nutrient content) were analyzed and compared.The results showed that the best performance of Betula platyphylla seedlings treated with 1S concentration was the best in Sonneveld solution with different concentrations of treatments, which was calculated by Yamazaki Kenya formula The optimum nutrition solution for container seedling cultivation is the large amount of elements (mmol·L-1): N 9 16, P 3 48, K 3 78, Ca 3 25, Mg 0 79.