静止水培下扎米莲的生长及养分吸收动态

The growth and nutrients uptake of Zamioculcas zamiifolia in still hydroponics

以基质栽培为对照,选用4个营养液配方进行扎米莲静止水培试验.结果表明:扎米莲静止水培的各项生长指标棚当于或优于基质栽培.试验期间营养液的pH值均下降,EC值均上升,而扎米莲的生长不受影响;配方4的总耗水量和N、P、K的吸收总量及养分效率最高.表明扎米莲适宜静止水培,其中配方4的效果最好.此外,不同时期扎米莲的生长速率及对水分、养分的吸收速率不同.

Four formulae of nutrient solution were used to plant Zamioculcas zamiifolia in still hydroponics. The results showed that all growth indices of Zamioculcas zamiifolia in still hydroponics were near to or better than those in medium culture. The pH value of nutrient solution dropped and the EC value increasd, while the growth of Zamioculcas zamiifolia was not affected. Water consumption, total uptake of N, P and K and nutrient efficiency were the highest in formula 4. Therefore, Zamioculcas zamiifolia is adaptable to still hydroponics and formula 4 is the best among the formulae tested. In addition, the growth rate and absorption rate of water and nutrients by Zamioculcas zamiifolia were different during different periods.