The Research On Non-Polluted Cultivation Crucial Techniques Of Sunlight Greenhouse Tomatoes In Luoyang

The production of the sunlight greenhouse tomatoes achieves the goal of producing and supplying potatoes all year round and plays an important role in developing the vegetable production, increasing the peasants'income, improving the yield of agriculture and promoting the development of rural economy. In some areas, it has become the pillar industry. However, in the course of the sunlight greenhouse tomatoes, inside the greenhouse temperature, high humidity and low wind speed and other ecological factors to the occurrence of various diseases has created favorable conditions. In order to control the pest, producers will have a variety of large-scale use of pesticides, especially the irrational use of chemical pesticides, greatly reducing the safety of vegetable products. In order to obtain high-yield, fertilizer unreasonable, excessive use of fertilizers, nitrates are too high, and low input-output ratio problem. Seriously endanger the environment-friendly production of tomatoes.This study focuses on the main problems in the environment-friendly tomatoes production. From December,2006 to July,2009, the city carried out the study on the pollution-free production of greenhouse tomato through the selection of suitable low light tomato varieties resistant to cold, rational fertilization technology, science easy for pest and disease control technology, test, and achieved the following results:First, to screen out for me to greenhouse cultivation of new varieties resistant to chilling under low light:the city's main cultivated in the mixed 9, Jinpeng on the 1st and other powder-type tomato fruit compared to Luo Fan 8,9, with the features of low temperature resistant, anti-frost, dim light resistant, good firmness of fruit, good long period of products, high efficiency, storage and transportation resistant and virus and Cladosporium fulvum Cooke resisitant. Therefore, make it possible that we grow such tomatoes in spring, autumn and winter. And it has become the city's main cultivated tomato replacement, adjustment the layout of the preferred varieties.Second, to determine tomato fertilizer pollution-free technology:bio-organic fertilizer and chemical fertilizer can significantly increase the tomato root vigor, enhance plants growth, improve tomato yields, improve nutritional quality and flavor of fruit, and especially for the increase in tomato fruit vc content, and reducing nitrate nitrites, it has a very significant effect. At the same time, bio-organic fertilizer can promote nutrients to product transportation and distribution of organs, with fertilizer compared to single application of fertilizer can increase crop or economic factor, with good economic benefits. The production of a large volume of application of compound bio-organic fertilizer can reduce fertilizer usage, the production of fertilizer and a lot of energy consumption; on the other hand, can avoid a lot of nitrogen caused by nitrate pollution of groundwater pollution and products. In the way, we could achieve the high yield and high-quality pollution-free production of tomato.Third, to identify the important disease in winter tomato gray mold---a simple and practical measures for pollution control technology:Botrytis cinerea infection of fruit damage, mainly in young fruit period, mostly from residual petals and stigma begin infection, and then infect the fruit damage, according to the illness characteristics, use of spots around 10d after flowering, fruit diameter when the timely removal of about Icm (twist-law) residues petals and stigma, to cut off a bridge can be effective in preventing bacteria occurrence of gray mold fruit harm, so that a second removal of residual petal, stigma, and permanent to keep the fruits of a preventive effect of up to 95%, without affecting fruit quality, is a simple, full, efficient and cost-effective prevention and control of tomato gray mold a new sound technology, using this method should be noted that removal of residues petal, stigma, when thoroughly clean.Flowering control is also useful to point to spend an optional plus 0.3% procymidone, but also a better control effect. Chemical control of plants and foliage can choose 50% of the vinclozolin 800 times of that 25% Li and Jenny, and 800 times of 40% of Scala. Alternating the use of spraying every 7 days with good control effect.Four, to identify for the old vegetable base with devastating harm on the tomato whitefly pests---simple and practical pollution-control measures:Huangban trap and kill whitefly and the use of insect nets in the fight against greenhouse whitefly in the main physical measures. The production application, Insect and yellow board trap used in combination to control whitefly can be valid for the danger of more conventional chemical control have a good anti-efficient, than conventional chemical control, with low cost, effective, non-pesticide pollution and residual and other characteristics, natural enemies safety, and environmentally sound.Chemical control of choice:0.26% matrine aqueous solution of biological agents and 25% buprofezin and 1.8% Avermectin EC on whitefly has a better control effect. When the population density is high, the physical measure is not obvious, the use of the above three kinds of biological pesticides used interchangeably. Abamectin EC, matrine aqueous solution using 1000-fold,10% en 1000 times piperidine insects,25% buprofezin 1000 times better, Chi Xiaoqi long. Spray to 9:00 (did not go on to expose screens dew ago) before or around 4 pm.