vegetable base
4.The function in the assessment subsystem is performed about how to evaluate non-pollution vegetable bases in the study. The assessment results of non-pollution vegetable bases are shown in visualization and issued on network by Dreamweaver MX, HTML, JavaScript,Java, GeoBeans and SQL Server 2000, combined with the assessment model of non-pollution vegetable base.
5.This paper expounds Hangzhou city development situation and plan; Puts forward several issues about the city development and vegetable base construction. This paper suggests that the provincial government should conduct an overall planning for the utilization of green land,so as to create favorable conditions for sustainable agriculture development.
6.Residual levels of organochlorine pesticides in vegetables from vegetable base of Nanjing were also analyzed. Twelve representative organochlorine pesticides detectable occurrence were between 76% and 100%. DDT and HCH are the main residues in vegetables, account for 48.5% to 74.6%and 14.0% to 27.9% of all organochlorine pesticides residues detected, respectively.
7.The K-supplying power of soil from important vegetable base in Wuhan was eva-luated comprehensively by means of the chemical and physical analysis and pot expert-ments. The following attributes of the soils were tested: quantity of available potassium,content of slow available soil potassium and its release rate, main kinds of potassium-bearing minerals and its contribution to crop potassium nutrition, crops absorbed pota-ssium.
10.When adding sulfurized fatty acid esters having various active sulfur contents to biodegradable base fluids,its effect on the anti-wear property of the base fluids were varied: for instance,the anti-wear performance of sunflower oil and vegetable oil improved with the increase of active sulfur content,and reverse results were observed for trimethylolpropane ester and mineral oil HVI 150SN.
