TITLE:
The Growth Characteristics of Three Terrestrial Plants Cultivated with Biogas Slurry as a Hydroponic Medium
AUTHORS:
Qun Kang, Jinhui Zhao, Pan Zhu, Qin Gong, Ling Wang, Zhaohua Li
KEYWORDS:
Biogas Slurry, Fu Gui Cai, Yang Xin Cai, Strawberry, N/P/K, Vitamin C, Chlorophyll, Heavy Metals
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.11 No.6,
June
24,
2020
ABSTRACT: Biogas slurry is a
traditional high-quality organic liquid fertilizer. Three terrestrial plants
with high economic value, fu gui cai, yang xin cai and strawberry, were selected for hydroponic cultivation using an optimal dilution
of biogas slurry. The results of the experiments showed that strawberries could
bloom and bear fruit and fu gui cai and yang xin cai grew well. However, in comparison
with the control groups planted in soil, all three crops were subject to a
certain degree of environmental stress, as shown by changes in growth, biomass
indicators, physiological indicators and morphological indicators. The leaves and stems of yang cai and fu gui cai were tested for several types of heavy
metals, and all met the requirements for human consumption. It is feasible to
cultivate these three plants with biogas slurry. The results of this study can
help guide hydroponic production practices and have practical significance and
reference value.