育苗基质中氮磷养分量和氮磷比例对甜椒穴盘苗质量的影响

Effects of Different Ratio and Amount of Nitrogen and Phosphorus in Nursing Media on Growth and Quality of Sweet Pepper Plug Seedling

在含有不同氮磷养分的育苗基质中进行甜椒穴盘育苗研究,试验结果表明:基质中氮磷养分和氮磷比例极大影响了甜椒幼苗生长;在试验条件下,培育优质甜椒穴盘苗的育苗基质中氮磷养分的适宜比例为N∶P2O5=11∶.5,养分量为N600 g/m3和P2O5 900 g/m3。

The effects of different nitrogen and phosphorus nutrients applied in nursing media on sweet pepper plug seedlings sowed in the substrates with V （turf）：V （vermiculite）=2：1 was studied .The results showed that nitrogen and phosphorus nutrients had significant effects on the growth and quality of sweet pepper plug seedlings, phosphorus was an important nutrient element for health and vigorous seedlings .The stem diameter and root DW of the sweet pepper seedlings sowed in the substrates with high amount and middle ratio of N and P increased rapidly ,root activity and root absorption area were significantly higher than other seedlings. In this experiment,the optimum N and P scheme was N： P2O5=1： 1.5, N 600 g/m^3, P2O5 900 g/m^3.