| Our greenhouse agriculture is at a stage of vigorous development. Solar greenhouse industry is considered as our main faculty in agriculture industry, has become the highest groomed industry with respect to efficiency during past two decades. However, with the increase of greenhouse vegetable production costs inceases, operating at a loss in solar greenhouse vegetable production.Therefore, this thesis took the efficiency of greenhouse vegetable production as object and improving production efficiency as purpose. Based on the research of solar greenhouse vegetable growers,this paper discussed the problem we are facing in the solar greenhouse vegetable production, analyzed the influencing factors of comprehensive benefit and economic benefit in the solar greenhouse, vegetable production, designed experiments aiming at the influence factors of the maximum sensitive coefficient, analyzed its influence on solar greenhouse production economic benefit, and put forward relevant counter measurments and suggestions to improve the production efficiency, so as to promote the stability of the sustainable development of solar greenhouse industry in P R, China.First, this paper described the production and operation of solar greenhouse. It shows the solar greenhouse vegetable growers are generally olders and cultural level is low. The main question in the production is, price fluctuations, technology shortage, lack of marketing information. Farmers in agricultural cooperative participation is not high, cooperative did not play its role.And analysised different factors of the influence of greenhouse comprehensive benefit based on fuzzy synthetic evaluation.The result shows: The best comprehensive benefits is Balsam pear-cucumber crop arrangement at Shouguang; 9<S<10m and 1>80m is best at Shouguang. The solar greenhouse vegetable production efficiency of Shouguang is better than Tongshan, and analysised the impact of different production cost factors on the economic benefits of the solar greenhouse. It was concluded that, with the increase of different production cost, output value increases first and then decreases. The cost of fertilizer is the biggest influence factor among the total cost changes, and by the cost-volume-profit analysis and sensitivity analysis, it was concluded that sensitive coefficient from big to small in turn is, price, output and variable cost. The sensitive coefficient of fertilizer is the largest in the variable costs.Secondly, based on the conclusion that fertilizer cost sensitive coefficient is the largest, designed experiments, in order to compare the influence on yield and economic benefit of different fertilizer amount and fertilizer types in solar greenhouse vegetable production. The experimental results showed that under the same fertilizer types, the output increased with the increase of fertilizer. When the total amount of fertilizer was less than 3200kg/hm2 with the same type of fertilizer, each lkg additional fertilizer led to 9kg average yield growt h. The yield growth rate was larger. When the total amount of fertilizer was more than 3200 kg/hm2, the average yield growth was just 0.47kg. And the yield growth rate was almost no change Under different fertilizer types, the production of the treatment with organic fertilizer as basal and topdressing compound fertilizer was the highest, with the fertilizer rate increasing, productivity, fertilizer fertilizer profits and profit increase first and then decrease. Considering the cost yield and economic benefit analysis of different fertilizers, treatments on solar greenhouse vegetable production, treatment of organic fertilizer as basal, fractional addition of compound fertilizer was the best.Finally, as a consequence of the aforementioned analyses the thesis proposes some of the relevant measures to increase the economic benefits of sericulture in aspects of government’s support and sericulturist’s cooperation. |
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