不同营养液配方对苋菜生长的影响OA

The nutrient solution formula directly affected the growth,development,yield and quality of crops in the process of soilless culture.In order to explore the effects of different nutrient solution formulas on the growth of amaranth,and provide a theoretical basis for cultivating high-yield and high-quality soilless culture amaranth.It was cultivated with coconut bran substrate,the improved ama-ranth formula,improved Hoagland formula,Huaduoduo fertilizer,Shanghai Yongtong fertilizer with different concentrations of different formulas were used as four treatments,and the South China Agricultural University leaf vegetable A formula was used as the control.The growth and development of amaranth under different nutrient solution formulas were studied by measuring the growth indexes of amaranth plant height,stem diameter,spreading degree,leaf area,leaf number,petiole length,fresh and dry weight of aboveground and underground parts,main root length,root-shoot ratio.The results showed that the improved amaranth formula had the best effect,and the plant height,stem diameter,spreading degree,leaf area and petiole length of amaranth were better than the control,which was more beneficial to the growth and development of soilless culture amaranth.This research provided a theoretical basis for cultivating high yield and high quality soilless cultivated amaranth.