Study On Planting Technique And Evaluation About New Mulberry Variety Of Jinsang-1

Our country is the original place of silkworm and mulberry, and is the biggest production country of pod and raw silk in the world. Pod and raw silk are the only monopoly agricultural products of our country in the international market. Our country is coming into being the trinity management pattern of basal construction, scale production and industrialized management, the eastern area is developing the high quality base of silkworm and mulberry , the mid-west area is expanding silkworm and mulberry scale base, three areas are forming the unisonous development pattern .Mulberry is one precious economic and ecological tree,is the only feed for the silkworm, and is the important material base of the whole silk profession.Research about mulberry variety breeding and cultivation technique presents gradient characteristic and multiplex ecology characteristic. The natural ecological environment is complex in our country, in view of the natural resource characteristic of Shanxi Province, we should strengthen the research about mulberry variety breeding and cultivation. That is vital significance for the development of modern silk industry ,supportting the project of " moving mulberry in east to west ", promoting the silkworm base construction of Shanxi, enhancing silk industry competitive ability and benefit, increasing farmer's earning, creating more chance for farmer to obtain employment, improving ecological environment, serving socialistic new rural reconstruction etc.Through primary election, compared with experimentations, tested in different countryside regions, appraised by the region of north scientific research cooperation , appraised the breeding result of fostering silkworm, a new mulberry variety was selected --- Jinsang-1.We also studied in the technology of high yield and effective cultivation in cutting the mulberry tip, fertilizer and cultivation technology, harvesting of mulberry branches with leaves and so on. The results are as follows:1 reeding of mulberry Variety Jinsang-1Jinsang-1 is a medium budding variety, germination percentage is as high as 83.45%, growth bud rate reaches 47.93%, the leaf yield per meter long branch is 136g in spring ,and 146.1g in autumn. Jinsang-1 has big leaves shape, high output ,high quality leaves, medium numbers of branches, prosperous growing trend and high adaptability. It is a excellent mulberry variety which can meet the request of cocoon and parent race.That the breeding of Jinsang-1 filles the blank that Shanxi Province has no excellent mulberry variety before, achieves the leading level in domestic similar local research.passes the test of provincial level science and technology achievement appraisal and gets the approval of the region of north scientific research cooperation's variety examination.It will be the mian mulberry variety of Shanxi and other similar areas, and be spreaded in countryside and silkworm and mulberry breeding field vigorously.2 Determine the most suitable degree for cutting mulberry tip Cutting mulberry tip takes 1/5 as the most suitable degree,which is fewer than that is prevalent in production,which is 1/4~1/3.. We should act according to the different trend of branch growing, take the mild non- level as to be right.3 Conclude the feasible technology of fertilizer and cultivation in Shanxi and northern areaThrough our research,we find that the most rational mixed rate of nitrogen , phosphorus and potassium fertilizer is 10:5:5,which is different from 10:6:8 that is prevailing now. It is suitable to apply 25 Kg of saizong28 in 1/15hm2 in Shanxi and northern area .This is the first report on mulberry in our country.Applying foliar fertilizer to mulberry can supply nutrient, promote tree body's nutrition work and growth, enhance yield, and it is one effective technology measure in increasing production, it also costs low investment and gains high production.The research conclude the feasible technical pattern of fertilizer and cultivation in Shanxi and northern area, establish the technology of mixed fertilizer,which is"apply enough organic fertilizer, yield decides nitrogen, mix phosphorus and potassium into nitrogen, supply microelement reasonably";establish reasonable fertilizer principle and method for appling fertilizer; increase strawstalk cover, adjust water and increase fertilizer, all of this can kill two birds with one stone.4 Smmarize the technology pattern of the whole year mulberry branches with leaves harvestingBecause mulberry harvest still mainly by handwork in our country now, we studied the essential method which is needed during mulberry harvest:elect the suitable variety is foundation, forster the shape of tree to construct skeleton, check on at reforming stage, get good method at harvest stage, consummate the accessary measure.The research established a set of pattern about the whole year mulberry branches with leaves harvesting to suit the summer cutting,heavy cutting and rotation in the new area of south and the spring pruned in southeast in shanxi province .