The Study Of Feasibility And Extension Of Application On Biogas Fertilizer For Tea Planting In Yunnan Province

The planting area of tea in Yunnan reaches 435000 hectares,the output is384500 tons,its comprehensive economic output value reaches RMB 670 billion,and the income of tea farmers from the tea industry reaches more than RMB 2900 per person.Therefore,tea occupies an important position in Yunnan.But for a long time,there have been many problems in tea planting in Yunnan,such as low quality of tea,soil consolidation and environmental pollution caused by the use of chemical fertilizer and pesticides.On the other hand,the rapid development of animal husbandry in Yunnan has also brought about the problem of livestock waste pollution and waste of resources.In 2017,the Ministry of Agriculture issued a "plan of action to substitute organic fertilizer for fruit and vegetable tea",which requires that organic fertilizer should be used instead of chemical fertilizer in tea cultivation,and the use of chemical fertilizer should be greatly reduced.At the same time,the use of animal manure should be utilized as resources.Form a "tea-bog-livestock" recycling agriculture model.Biogas fertilizer is a kind of safe and efficient fertilizer.Under this background,it is of great practical significance to popularize biogas fertilizer to plant tea in Yunnan.This article mainly uses the literature analysis method,the comparative analysis method and the theory combined with the actual analysis method.By combing the related literature of the tea planting experiment of the biogas fertilizer and comparing the influence of the application of biogas fertilizer and other fertilizer methods on the tea,we concluded that the planting effect of the biogas fertilizer is the best in the tea yield and the inner quality.In the appearance quality of tea,the effect of biogas fertilizer is second only to commodity fertilizer,and the effect of biogas fertilizer is second only to the effect of biogas fertilizer and commercial fertilizer in the effect of Biogas Fertilizer on diseases and insect pests,and the content of ammonium nitrogen and nitrate nitrogen in soil can be improved by biogas fertilizer.Compared with the experiment of biogas fertilizer application,it was concluded that the yield of biogas slurry and the ratio of biogas slurry to water were 0.5~2,which could increase theyield and quality of tea by 7.5~75 tons/ha.It is concluded that biogas fertilizer is beneficial to improving the quality and efficiency of tea,preventing pests and diseases,and improving the soil of tea fields.To sum up,the application of biogas fertilizer to tea production is as follows: in 11~12 months,30~60 tons/ha of biogas residue was applied in the way of fertilizing and fertilizing the soil in a ditch,and30~45 tons/ha of biogas slurry was applied between the middle of March,the next ten days of May and 7~8 months,and 1.5 tons/ha of biogas liquid was used as topdressing on leaf surface at the beginning of the next year and early June.Through analysis,it is concluded that 2.232 million tons of biogas fertilizer produced by livestock and poultry manure can fully meet the maximum fertilizer requirement of 0.86 million tons of tea planting in Yunnan.In Yunnan province,the effect of biogas fertilizer on the quality improvement of various crops provides a reference for the cultivation of tea in Yunnan province.At the same time,Opinions of the Yunnan Provincial People's Government on further accelerating the development of tea industry and many other policies to support the development of Yunnan's tea industry and biogas fertilizer.By the analysis of the effect of biogas fertilizer planted in Hubei tea,it is concluded that the yield and quality of the tea can be improved,the value of tea is increased,the income of the tea farmers is increased by 42.4%,and the economic benefit is good.Therefore,it is feasible and necessary to popularize biogas fertilizer to grow tea in Yunnan.Based on this,combined with the policy of "developing the action plan of replacing fertilizer with organic fertilizer for fruit and vegetable tea",the project of "tea,marsh and livestock" in Fengqing county in Simao district was used as demonstration to popularize the technology of planting tea with biogas fertilizer in the whole province.The specific promotion methods are as follows: in the early period of popularization,newspapers,Internet,agricultural magazines,publications,news comprehensive channels of provincial and provincial television stations and special reports were used to publicize the demonstration projects,planting techniques,planting effects and so on,and to mobilize the enthusiasm and participation of promoting the use of biogas fertilizer for tea.In the middle period of the promotion,the government sent the technical Commissioner to carry out the collective training of the technology of planting the tea with biogasfertilizer.The experts could solve the specific problems in the field.At the same time,the government could organize the relevant representatives to visit the demonstration base.Government guidance,the promotion of self-organized organizations to organize the establishment of Biogas Fertilizer Plant Tea Association,through training meetings,on-site meetings,field guidance and other methods to solve the problems in the subsequent planting.