Study On The Key Technology Of High Quality And High Effective In Xinyang Tea Plantation

Tea production is one of the pillar industries in Xinyang.There are many advantages such as geographical dominance,predominant ecological environment and high-quality tea.But there are many adverse factors such as ignoring the application of Pollution-free production,lack infrastructure of tea plantation and low intensify of tea production.The study on the Pollution-free technologies in tea plantation is the most important measure to resolve the present problems.Such cultivation technologies as intercrop in tea plantation, optimization fertilization,covering straw and comprehensive prevention and control of diseases and pests are applied.The results are favorable.1.Rational intercrop would make partial direct light turn into scattered light and diffused light.This measure also increased air humidity of tea plantation,soil fertility and tea quality.This measure improved physical characteristic of soil.The economic benefit of tea plantation after intercropis increased 15%-58%.2.Base fertilizeris applied about 10th Oct.every year.The depth of ditchis 25cm and the optimum distance between ditch and tea treesis 40cm.One of the optimum fertilizer combinationsis active fertilizer,cake fertilizer,fence fertilizer and urea.The otheris active fertilizer,cake fertilizer and fence fertilizer.The two fertilizer combination reduced cost and increased output of famous tea varieties.From the perspective of economic efficiency,each producing dry tea 100 kilograms,Oxfam activity fertilizer 100 kg is the best fertilizer usage.3.Soil fertility and output of tea after covering strawis obviously increased.The ecological environmental of tea plantation and quality of teais obviously improved.The content of amino acid,tea poly-phenols and caffeine of tea leavesis increased.4.There are over sixty natural enemies of tea pests in Xinyang.Natural enemies have good control of tea pests after building ecological tea plantation.The main prevention and control measure of diseases and pestsis agricultural and biological prevention.The next measureis chemical prevention.The biological preparation of B.t.and EpNPV and natural enemies are applied in tea production.Farm chemicalis few applied and high vestigital chemicals are refused to use. The application of pollution-free measures may resolve residue of farm chemicals, heavy metals and overproof of harmful microorganism in tea production.Tea of Pollution-free is produced.