| Sunlight greenhouse is widely used in the northwest of Liaoning Province,especially in Chaoyang,and it is one of the important agricultural facilities in our province.The planting pattern and stubble arrangement of vegetables in sunlight greenhouse are not same.Under normal circumstances,vegetable stubbles arranged in solar greenhouses is mainly based on vegetable types,growth environment,self-growth condition,development laws,market situation and the price law of vegetables.In this paper,7 districts of Chaoyang City,Liaoning Province,involving 16 towns,42 villages and 220 households,are selected as the experimental objects.Through the analysis of the crop rotation,cultivation mode,crop yield,output value,productive input and net income of different vegetable crops in the sunlight greenhouse,a suitable arrangement of vegetable rotation in local sunlight greenhouse is selected,the social and economic benefits are improved,providing a reference basis for the vegetable rotation arrangement of sunlight greenhouse and the development of facility agriculture in different regions of Chaoyang City.The main conclusions are as follows:The main types of vegetable cultivation in Chaoyang sunlight greenhouse are cucumber,green pepper,tomato,eggplant,zucchini,edible fungus and horned melon.The average annual yield of vegetables in sunlight greenhouse in Beipiao is about 31.5t,with a cultivation area of 1682 mu.Lingyuan city is about 62.5t,with a planting area of 282,000 mu.Chaoyang County is about 68.5t,with a planting area of 72,000 mu.The annual average yield of the main vegetables planted in the sunlight greenhouse in Jianping County is about 72.25 t,with a planting area of 50,000 mu.Kazuo County is about 31.9t,with a planting area of215,000 mu.Shuangta District is about 11 t,with a planting area of 40000 mu.Longcheng District is about 24 t and the planting area is 0.6 million mu.To sum up,the main vegetable cultivation area in sunlight greenhouse in Chaoyang area is larger and the yield is higher,which is the main cultivation stubble in Chaoyang area,of which Jianping county has the best effect and the highest output value.The annual average yield of the main vegetables planted twice a year in the sunlight greenhouse in Beipiao city is about 49 t,and the planting area is about 450,000 mu.The annual average vegetable yield of lingyuan city sunlight greenhouse is 47.5t and the planting area is 24,600 mu.The average annual yield of the main vegetables planted twice a year in the sunlight greenhouse in Chaoyang County is 60 t,with a planting area of 200,000 mu.The average annual yield of the main vegetables planted in the sunlight greenhouse in Jianping County is 71.75 t,with a planting area of 60,000 mu.The annual average yield of the main vegetables planted in the sunlight greenhouse in Kazuo County is 27 t,with a planting area of202,000 mu.The average annual yield of the main vegetables planted twice a year in the sunlight greenhouse in Shuangta District is 21 t,and the planting area is 10,000 mu.The annual average yield of the main vegetables planted in the sunlight greenhouse in Longcheng District is 27 t,with a planting area of 22,000 mu.To sum up,the total cultivation area ofsunlight greenhouse vegetables in each region of Chaoyang city is 968600 mu per year and the annual average vegetable yield is 303.25 t,which shows that the cultivation area of sunlight greenhouse vegetables in each region of Chaoyang city is larger and the yield is higher.however,due to the different temperature and light conditions of sunlight greenhouse in each region,the cultivation of vegetables in two crops per year is not uniform,which makes the supply of vegetables in each region complementary and improves the overall economic benefits.Cucumber,tomato,zucchini,watermelon,potato and melon are the main types of vegetable cultivation in sunlight greenhouses in Chaoyang city.The annual average yield of the main vegetables planted in the sunlight greenhouse in Beipiao city is 35 t with a planting area of 210,000 mu.The average annual yield of the main vegetables planted in the sunlight greenhouse in Chaoyang County is 29.3t,with a planting area of 120,000 mu.The average annual yield of the main vegetables planted in the sunlight greenhouse in Jianping County is0.6 million mu.To sum up,there are few cultivation patterns of three crops a year in sunlight greenhouses in various regions of Chaoyang city,with a planting area of 336,000 mu and an annual average vegetable yield of 81.8t,which may be related to the climatic conditions in Chaoyang region,where sunlight greenhouses are not suitable for three crops a year,or the temperature,light and other conditions provided by sunlight greenhouses are not up to the requirements for three crops a year.Besides the cultivation of tomatoes,cucumbers and other vegetables,the sunlight greenhouse in Chaoyang city also includes the cultivation of spring onions,early spring kidney beans,autumn and winter leeks and early spring eggplant,of which early spring eggplant has the highest cost and winter shallots have the lowest investment.Lentinus edodes has the largest income compared with other vegetables,followed by early spring eggplant with the larger income and winter shallots with the lower income.To sum up,the vegetable cultivation in sunlight greenhouse in Chaoyang city is mainly melon and fruit,tomato and other leaf vegetables and fruit vegetables.The main cultivation stubbles are one big stubble a year and two stubbles a year.The top three crops with economic benefits are the annual production of Lentinus edodes,tomatoes in early spring and cucumbers in autumn and winter,of which Lentinus edodes is the most profitable,but producers have relatively large investment funds and high risks,and relatively high requirements on the technical level of growers.If producers want to improve the planting level and reduce the production cost,relevant government departments need to strengthen the improvement of farmers’ planting technology,the introduction of new varieties,and widely publicize the products. |
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