Study On The Key Matching Technology Of The Industrialization Of Alfalfa Planting In Yellow River Delta Area

The alfalfa is the high-quality perennial legume family herb, and at the same time,it is a kind of fine improving the soil and fostering and apply fertilizer plant. It has high productivity, high quality, chilliness-resisting, arid-resisting, high anti-adversity and regenerating ability, adaptability, strong root system. It has extensive adaptability in the semi-arid region of the aridity.Yellow River delta is one of the deltas, which is one of the created lands. It's land resources are very abundant, and has the potential to be developed. However, the soil salinity in this area is very high, and it has become the key barrier to restrict local economic development. Alfalfa can be planted in the delta for its high adaptability, which can help the development of ecologic and economic of this area. But the planting of the alfalfa still remains at traditional stage at present. It is often planted in the unfertile land, saline and alkaline on the ground that is not irrigating the condition mainly and does not apply fertilizer basically or seldom apply fertilizer, extensive management. So the production and quality is not high as a kind of eminent forage grass, it was not being used to the full extent. In order to improve the industrialization of alfalfa planting in yellow river delta area, this paper mainly studied the key matching technique. Firstly, choosing Lijia farm, Gudao farm, southern part of Huanghekou farm as the proving grounds. Then determine the method of cultivation as well as the variety and seeding density. The development of GIS technology provides the progress of digitalization, automation, intelligentization of agriculture with stable technological basement. And GIS technology is introduced to precision agriculture to alfalfa cultivating, especially in the aspects of variable fertilization and soil nutrition management, to increase the effectiveness of fertilization. At last, this paper discussed the prevention and cure technique measures against plant diseases and insect pests of alfalfa in Yellow River delta.Looked from the overall, in the all experiments about the different varieties, there are four varieties Ameriguard, Total+Z, CUF101, ABI400 which both have the high steady output, good quality and the good reproducibility . And the Ameriguard has the best comprehensive quality. Although CUF101 has the best reproducibility, it has the bad fastness and the bad capability to live through the winter. ZhongmuNo.1 has the best quality, but it also has the low output. So the Ameriguard, Total+Z, CUF101, ABI400 are good varieties to plant at the wide area.