Effects of quantitative nutrient management on the growth and nutrient contents of mini radish with soilless culture in different growing seasons
In this article,the effects of quantitative nutrient management below the optimal nutrient solution concentration on the growth and nutrient contents of mini radish in three different growing seasons were studied.Three treatments were set in the experiment:500(T1),400(T2)and 300(T3)mg nitrate nitrogen per plant,which were 60%,50%and 40%of the optimum concentration,respectively.The above-ground and underground growth,nutrient contents and nitrate contents in different parts of mini radish with soilless culture were measured in spring,autumn and winter.The results showed that all treatments reached the commercial weight in spring,and the highest weight of underground part reached 54.5 g(T1 treatment),but the growth of underground part in autumn and winter were slower than that in spring,and the leaf length increased significantly.In the three growing seasons,the nutrient contents of N,K and Ca in the above-ground and underground were little changed,but the nitrate contents changed irregularly,which needs further study in the future.In overall consideration,the optimum concentration of nitrate nitrogen was 400 mg per plant,which was suitable for the annual production of mini radish with soilless culture.
NETL
NSTL
万方数据
维普
