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开封砂土试验区地处黄淮海平原腹地,年平均气温14℃。年降雨量660毫米,无霜期210—220天,适于一年两熟或多熟种植,是发展粮食、油料和瓜果蔬菜的良好基地。但由于该区风、沙、旱、涝、薄等自然灾害频繁,交替危害,农业产量长期低而不稳,严重地阻碍了沙区农村经济的发展。因此,如何趋利避害,调整种植业结构,发展高效、多熟种植,充分合理地利用沙区光、热、水、土资源,使其迅速转化为生产力,是发展沙区农业生产的重要课题。
Kaifeng sand test area is located in the hinterland of the Huang-Huai-Hai Plain, the annual average temperature of 14 ℃. Annual 660 mm rainfall, frost-free period 210-220 days, suitable for two or more crops a year planting, is the development of food, fuel and fruits and vegetables good base. However, due to frequent and alternating hazards such as wind, sand, drought, floods and thinning, the long-term low and unstable agricultural output has seriously hindered the economic development in the rural areas of Shazi. Therefore, it is of great importance to develop agricultural production in the sand area by how to seek benefits and avoid disadvantages, to adjust the structure of planting industry, to develop highly efficient and multi-cropping systems and to make full and rational use of light, heat, water and soil resources in the sand area so that they can be quickly converted into productive forces Question.