Studies On The Fertilizer-Protection In Xingshan Area For Tobacco-planting

According to the analysis of the current situation through the soil-protecting of tobacco-planting district and combining the reality of county, I advise to have the concrete measure of the soil protection from three respects: increasing the soil organic matter, setting up the cropping system and economizing on water and covering.Through analyzing the planting tobacco soil's organic current situation and changing, I think that the whole nitrogen, the whole potassium, alkali solve nitrogen, quick-acting potassium in the soil are reaching the extremely remarkable level to simply return of the organic matter and whole phosphorus, quick-acting phosphorus are reaching remarkable level to simply return of the organic matter in the soil. We can utilize organic content level of soil to assess the poor nourishment of nitrogen, phosphorus and potassium in the planting tobacco soil. In production, we can make the organic state represent basic state of tobacco leaf production, can increase and decrease the use of organic matter to adjust and control the nutrition state of tobacco planting soil, can also maintain the organic content to improve the soil nutrient state and physics and chemistry properties, which offered the theoretical foundation for the tobacco field of soil protection.Through analyzing the influence factor of the organic content changing and tobacco district's reality, I launch the research to demonstration of flue-cured tobacco increased and used organic fertilizer and the effect of different old stubble crop influencing tobacco leaf production. So I put forward to set up and increase the organic matter for base and the soil improvement and nutrient maintenance system of taking tobacco as main crop rotation system.Through using the organic fertilizer, I think we can increase and use bacterium organic inorganic compound fertilizer, putrefying plant organic fertilizer to improve tobacco leaf production and quality, so using the organic fertilizer can be one of the important measures for tobacco fields nutrient and safeguard. Especially, It have a realistic meaning in the tobacco district of middle of county on the mountain. At the same time this text proposes planting the green manure, straw pole the method of returning the field and straw pole ferment, using the organic inorganic compound fertilizer, using the cake fertilizer etc to safeguard the tobacco field organic matter and protect the tobacco field. Contrasting the different result of the stubble, I think that in order to realize developing continuously we can have the plan and procedure to arrange the crop in cycle of crop rotation to be planted rationally during the same certain service life of massif and from the regular system for protection. All of these are effective measure. Our county should set up the cropping system relying mainly on tobacco and system of crop rotation depending on the different actually.Cover and protect water experimental study through economizing on water, it indicate that we can cover a ridge of body in order to improve tobacco leaf production and quality. To resource reality, we can change the way of covering to separate ridge to cover and half of covering technology. Conditional tobacco district and peasant household implement the straw pole to cover, which can adopt to cover the ditch first and ridge in a field second, or the straw covers the way to combine with covering with ground sheeting (two yuan association is covered). Our county can suit measures to local conditions of agriculture cover protecting water mode, making the cover between the ridge of body as an effective tobacco field protective measure to tobacco producing in the district of middle of the mountain.To sum up, we can protect the tobacco field by way of using the organic fertilizer, setting up the system of crop rotation and water-saving mode to local conditions combining together. It should be by setting up the relying mainly on the tobacco leaf and main crop rotation system to the high mountain tobacco district of county on the mountain, using the organic fertilizer mainly on the middle of the mountain. Combining climate characteristic, we can adopt straw pole to cover the field as fertilizer and then plant the tobacco and the stubble is utilized effectively mainly solve crop rotation of the flue-cured tobacco effectively, which promotes tobacco leaf production from a sustainable development.