Smoke Garlic Round The Function And The Evaluation Which Make To Boost Production To Increase An Effect

This experiment according to local reality in Guizhou, taking YunYan87 as the material, under the condition of tobacco-garlic rotation,taking enhancing the output and quality of tobacco leaf as well as the economic efficiency of tobacco rotation as the main research aim, analyzes smoke-garlic rotation and the contrast experiment of rotation of tobacco and the different crops, and carries on the appraisal to its production-effect-increasing and benefit ,so as to Obtaining the best croprotation pattern in which the flue-cured tobacco is the primary , providing the certain theory basis for seeking the better production way for farmer and cost-saving and effect-increasing of the flue-cured tobacco ,The result indicates that.1. Smoke garlic rotation through the soil nutrient content analysis, results showed that breathing garlic in the garlic crop rotation to improve the soil physical and chemical properties, soil pH adjustment of soil nitrogen, phosphorus content has little effect on reducing the appropriate potassium in soil nutrient concentration, breathing garlic rotation can improve soil nutrient elements in the effectiveness of the flue-cured tobacco to soil nutrient absorption and the formation of high-quality tobacco.2. By diagnosis to the harm of the plant disease and insect pest to the flue-cured tobacco in the process of tobacco-garlic rotation, the research indicates that: the effect that tobacco-garlic rotation prevents and reduces the flue-cured tobacco's disease is remarkable, which reaches as high as 93. 05%, out doing 41. 65%, compared to the comparison; Simultaneously the tobacco-garlic rotation can effectively control the occurrence of the flue-cured tobacco insect pest, reduce the rate of flue-cured tobacco suffering injury the insect pest type and the bug-eaten part density, which is advantageous to the leaf tobacco's normal growth and its quality enhancement3. Through investigation comparative and analysis to the influence of tobacco-garlic rotation to the flue-cured tobacco's agronomic characters, the output and the quality, the result indicates that, the flue-cured tobacco processed by tobacco-garlic rotation is higher than the comparison by 21.91cm and 4.93 cm in average after transplanted 45 day later and 75 day later. the most leaf area is bigger than comparison by 443.1 cm~2 and 269.3 cm~2 , the medium and superior tobacco's proportion outdo 14. 5% compared to the comparison, the production and the value are more than the comparison by 569.1 kg/hm~2 and 6387. 9 Yuan /hm~2. This indicates the tobacco-garlic rotation can promote the flue-cured tobacco's aerial parts growth, enhance the medium tobacco proportion,and gets up the promoter action to enhancing the flue-cured tobacco output and the quality and increasing the flue-cured tobacco's output value .4. The experiment compared and analyzed the effect of the garlic-tobacco rotation the oil -tobacco rotation, the wheat-tobacco rotation and flue-cured tobacco spatial earth processing, the result indicates: the output of the flue-cured tobacco processed by the tobacco-garlic rotation is the highest, the difference achieves a=5% level to the comparison, The superior tobacco proportion outdo 7. 9%--19. 5% compared to other three crops rotation processing;regarding to the net income and additionally receiving rate , the effect of tobacco-garlic rotation processing is the best, the net income reaches 33234. 39 Yuan /hm~2, higher than the flue-cured tobacco spatial earth processing by 25272. 94 Yuan /ha, the ratio of income-increasing is 317. 4%; than the wheat-tobacco rotation processing by 13945.01 Yuan /hm~2, the ratio of income-increasing is 72. 3%;than the oil-tobacco rotation processing by 15234. 75 Yuan /hm~2, the ratio of income-increasing is 84. 6%. Therefore tobacco-garlic rotation processing is the better choice to give dual attention to social and the economic efficiency.