Problems Of Cultivation System Of Greenhouse Vegetables In The Four Prefectures Of The South Of Xinjiang Autonomous Region And Solutions

The Four Prefectures in the South of Xinjiang Autonomous Region,China are among the deepest poverty-stricken areas where there are contiguous impoverished prefectures.The development of greenhouse vegetables industry is a crucial approach to meet the supply of agricultural products,alleviate poverty,increase farmers' income and develop regional economy.The planting structure and cultivation system of greenhouse vegetables are affected by the conditions of light and heats in local areas,as well as social and economic factors such as production efficiency per unit area and market demand.The field survey was carried out in 22 deepest poverty-stricken counties and 30 villages in the Four Prefectures of the South of Xinjiang Autonomous Region,including the Aksu Prefecture,Kizilsu Kirghiz Prefecture,Kashgar Prefecture,and Hotan Prefecture.It mainly investigated the current status of horticultural planting structure and cultivation system in the Four Prefectures of the South of Xinjiang Autonomous Region.The problems existing at the present stage were analyzed from the perspective of impact factors,and some suggestions were put forward to solve the problems existing in the planting structure and cultivation system of greenhouse vegetables industry in the Four Prefectures of the South of Xinjiang Autonomous Region.In 2017,the population of the Four Prefectures of the South of Xinjiang Autonomous Region reached 10 million,accounting for 45.21% of the total population.The per capita cultivated land area accounts for 33.24%,and the per capita income 70.13% of the whole region.The land is insufficient to people,which aggravates the economic backwardness.Vegetables are still the main types of crops in the Four Prefectures of the South of Xinjiang Autonomous Region.According to the survey data of 22 counties,the capacity of greenhouse vegetables is only 970,600 tons,and the gap is more than 900,000 tons.According to the comparison the resources and conditions for the development of greenhouse vegetables in the Four Prefectures of the South of Xinjiang Autonomous Region,it's learned that the natural conditions are better for the development of greenhouse vegetables in Yecheng County,Kashgar Prefecture,Pishan County,Hotan Prefecture,KePin County,Aksu Prefecture and Tao County,Kizilsu Kirghiz Prefecture;and the social conditions are better in Shufu County,Kashgar Prefecture and Hotan County,Hotan Prefecture.At present,the rotation system of the solar greenhouse in the Four Prefectures of the South of Xinjiang Autonomous Region mainly includes three types of cropping--“early spring”,“late autumn” and “across winter” cropping.In the solar greenhouse,the rotation system of planting cucumbers in early spring,tomatoes in late autumn,leafy vegetables in winter,cucumbers in early spring,autumn bean(or cowpea)in late autumn and leafy vegetables in winter proved to be the most profitable one,which will be the trend of rotation system in the Four Prefectures of the South of Xinjiang Autonomous Region in the future.The problems existing in the planting structure and cultivation system of greenhouse vegetables industry in the Four Prefectures of the South of Xinjiang Autonomous Region are listed as follows:(1)The vegetable planting varieties is dispersed,which affects the channels of sales.(2)The pests and diseases in the production of greenhouse vegetables and continuous cropping obstacles are becoming more and more serious,resulting in loss of production at the main rotation.(3)The output of greenhouse vegetable is not high and the benefits are low;(4)The production and quality are difficult to be guaranteed because of the lack of production technology for greenhouse vegetables.(5)The consciousness and ability to self-improve and self-investment are weak,which leads to the serious phenomenon of empty sheds.Solutions to the problems existing in the planting structure and cultivation system of greenhouse vegetables industry in the Four Prefectures of the South of Xinjiang Autonomous Region are listed as follows:(1)To adjust the planting structure and actively expand the market;(2)To take the advantages of local resources and plant vegetables with superior characteristics so as to meet the demands of the market;(3)To strengthen the research and development of technology and application promotion,improve the quality of greenhouse horticultural products,and increase the income per unit area;(4)To increase investment and build a complete industrial chain by the government;(5)To pay attention to protection of water resources during the development of greenhouse vegetables industry.