Research And Development Of Foliar Fertilizer With Plant-based Pesticides

With the development of the society's economy and improvement of people's life, more concerns on food safety on the world are expressed. On one hand, the abuse of virulent chemical pesticides can't be ignored; on the other hand, the quality of the agricultural products aroused people's concerns.The insecticidal constituents were extracted from poisonous wild plants, which are abundant resources around China. The insecticidal constituents mixed with mineral elements or humic acids were sprayed on the leaves of pakchoi and Cabbage, and the results showed that.1. In the experiment of spraying plant-based pesticide and N, P, K mixed fertilizer on pakchoi. When this new foliar fertilizer was used, the mortality (3 d) of plutella xylostella was over 92.0%, which was significantly higher than control of conventional foliar fertilizer. The yield, vitamin C and nitrate contents in the edible parts of pakchoi were also increased, and hence the nutritional quality was improved. The similar results were obtained to cabbage.2. In the experiment of spraying plant-based pesticide and humic acid mixed fertilizer on pakchoi, the foliar fertilizer restrained the growth of the insect of plutella xylostella, which could to some extent protect the crops. The yield, vitamin C and nitrate contents in the edible parts of pakchoi were also increased, and hence the nutritional quality was improved.