The Study And Generalization Of Technique On Multiplicity-cropping Pattern Of Ginkgo And Mulbery

Sericulture industry is a traditional planting and breeding industry of our country.It has a long history,wide regional applicability,broad social basis and numerical superiority in the international market.Because sericulture is a labor-intensive industry with low output value per mu and value of unit labor.In addition,the price of cocoon silk is instable due to the fluctuation of the international silk market.All these adversely affect the sericulture production.Ginkgo is an important ecological and economic tree with straight trunk,large crown,thick leaves,great vitality,drought and barren resistance, little plant diseases and insect pests.It has economic,ecological efficiency,as well a certain degree of social and cultural efficiency.If Ginkgo is interplanted with Mulbery,it will realize the goal of three-dimensional cultivation and complement each other,then it will has a very important practical significance to stabilize the sericulture production and develop Ginkgo industry.(1) First of all,the article introduces the characteristics of cultivation of Ginkgo and the main characteristics of cultivation of Mulbery.The fact that cultivation of Ginkgo has a long history,rich resources,good quality,high production and effectiveness,plays an important role in national production,in view of the actuality of traditional sericulture industry and characteristics Ginkgo industry in Taixing,and this let us come to a dicision that is it and that the promotion of the relay inter cropping of Ginkgo and Mulbery is necessary.(2) Starting from the establishment of "The Relay-cropping Pattern of Ginkgo and Mulbery",we focused on the characteristics and advantages of "The Relay inter cropping Pattern of Gingkgo and Mulbery":in plantation,the goal of"upper,middle and lower three-dimensioned matching"has achieved;for efficiency,the far,middle,near complement one another.The recent economic efficiency based on the income of cocoon,supplemented byinter-planting income,while the medium-term benefits based on both cocoon and Ginkgo,as to the long-term economic efficiency,the revenue of Ginkgo plays an important role,the income by doing as what has been said before is much higher than that of just planting Mulbery or Ginkgo."The Relay inter cropping Pattern of Gingkgo and Mulbery" not only overcome the contradiction due to price fluctuation and erratic economic benefits,but also solve a series of problems after Ginkgo was planted 5 to 8 years,that is:little economic efficiency,biennial bearing of Ginkgo,unstable output and diffcult to spread on a large scale.(3) Give detail Notes of "The Relay inter cropping Pattern of Gingkgo and Mulbery:scientific selection of nursery stock,scientific cultivation,adequate fertilization and science prevention and cure pest;to strengthen the construction of the core demonstration areas,to promote the techonolgy all sidedly and base construction.(4) In this study,we give analysis of the risk of the technology,put forword counter measure deal with mutation of cocoon silk market and the decline in Ginkgo price.We also place emphasis on develop efficient and large-scale mixed cropping of Ginkgo and Mulbery,which has vast market,better mass-based,prominent economic efficiency,obvious social consequences and ecological efficiency.Above all,it has very good development perspectives.