摘要
为筛选出适合于甜瓜生产的栽培基质及营养液,研究了无土栽培条件下陶粒、沙子和珍珠岩基质配比和高钾元素营养液、标准营养液和低钾元素营养液配比对甜瓜生长的影响。结果表明:基质配比为陶粒∶珍珠岩∶沙子=2∶1∶1的处理株高最高,基质配比为1∶1∶2的甜瓜总叶绿素含量最高;随着钾元素的升高,株高长势增强,干重增加,叶片的叶绿素含量也升高,但不是钾元素越高越好,钾元素过高会影响氮元素的吸收,因此标准营养液较其它两种营养液相比,更适合甜瓜生长。
In order to screen out suitable matrix and nutrition solution formelon cultivation, the effect of different proportion of base materials（with eeramsite, sand and perlite）and different proportion of nutrient solution（with high potassium, standard potassium and low potassium）on melon＇s growth in soilless cultivation was studied. The result showed that on base materials, when the ratio of ceramsite, perlite and sand was 2：1 ： 1, the melon＇s height turned to be higher than the others;and when the ratio was 1：1：2, the melon＇s total chlorophyll content was the highest ; furthermore, on nutrient solution, the melon s plant height, dry weight and chlorophyll content in leaves turned out a positive growth. However, it was not scientific to believe that the more potassium ele ment, the better for melon＇s growth, for the excessive potassimn element would restrict the absorption of nitro gen. Therefore, compared with the other two nutrient solutions, the standard one was more available for melon＇s growth.
出处
《黑龙江农业科学》
2013年第2期34-38,共5页
Heilongjiang Agricultural Sciences
关键词
甜瓜
无土栽培
基质
营养液
melon
soilless cultivation
base materials
nutrient solution
