Unifying the current development situation of fine-quantity sorting seed at home and abroad, emphasize discussed the production present situation, the development tendency of fine-quantity sorting and the correlation technology of the cotton seed escaping in Xinjiang Corps.
Content: At present, the planting area of cotton is 460,000 hm2 in Xinjiang formation, and it's yield has exceed 1800Kg/hm2.The fiber quality in different district is unlike, we can ensure the situation of the cotton quality of Xinjiang formation through study on current status of Xinjiang formation cotton quality in different district.
According to climate of Xinjiang formation, we choose 14 representative reclamation area to arrange the test, which distribute familiar-maturing cotton district (southern of Xinjiang, eastern of Xinjiang) and early-maturing cotton district (Northern of Xinjiang) .
the research object of the article is the form of land contract of xinjiang PPC ,On the base of thetheory of ownership rights and the theory of incomplete contract and the request-proxy theory, first of all, the article has theoretically analyzed the form of land contract of xinjiang PPC and the history and reason of which the land contract form of xingjiang PPC produce and its shares between the contractor on the condition of the relationship of existing land contract .
moreover, through comparing the income and production between the PPC and rural, examined the conclusion in the real diagnosis, last,the article has bring forward the policy proposal about the form of development of land contract in xinjiang PPC.