Determination of the Iron in the melon and the fruit of the vegetables by spectrophotometry;

This paper is the first part of the insect communities studies in the gourd vegetables carried out in the suburbs of Chongqing City China.

According to planted characteristics in Shouguang vegetable growing areas, analyzing water and soil samples of the Solanum vegetables, by using the method of mathematical statistics and correlation analysis, it is regarded that there is a certain relation between the quality of vegetables and agricultural geological background.

Introduce the main species of the plant diseases and insect pests of solanum vegetables,and it s the situation of occurring and the object of prevention and cure.

The Solanaceae vegetables, which only refer to tomato, hot pepper and eggplant in this paper, are very important vegetable crops in China.

To ascertain heat tolerance of solanaceous vegetable plug seedling with vermicompost-based substrate,we determined chlorophyll content,antioxidant enzyme(SOD,POD,CAT) activities,permeation rate of electrolyte and malondialdehyde(MDA) content in leaves of tomato,eggplant,pepper plug seedling.

In this experiment,the control effects of antagonistic bacterium (B-916,H-91,G-329,P-6854 and JND)a-gainst some common diseases in solanaceous vegetables (root rot,damping-off and early blight of tomato) were studied.