Analysis Of Complex System Of Half Arid Areas AgricultureAnd Animal Husbandry

This paper taked the Sun Jia Tan modern agricultural demonstration park as the farming and animal husbandry compound system, the modern agriculture development in Ningxia gr oup company of production activities as a cropping system, through the field experiment an d soil were determined, while investigating the Sun Jia Tanmodern agricultural demonstratio n the park is 2010～2014 day two subsystems of production situation of 5 years, with theene rgy coefficient as the standard, to the energy flow, logisticscharacteristics of qualitative and q uantitative analysis, the results show that:1.2010-2014 Sunjiatan farming planting structure adjustment is large, from simple to complex and then planting structure 2014 simplification, while fertilizer use increased sig nificantly every year especially organic manure most significant increase. Production increa sed year by year from 2010-2013,2014, declined slightly.2. Planting energy investment decisions energy output, Sunjiatan organic farming can put far less than the inorganic energy, indicating a higher degree Sunjiatan farming machi nery modernization and inorganic energyIt turned into fertilizer and irrigation largest propo rtion, indicating that energy production is closely related to the inputs of fertilizers and irr igation water.3. Sunjiatan complex system of organic farming can put more than inorganic energy i n put and energy output of farming and aquaculture industry invested considerable energy, combined farming systems output not all input farming systems, this has led to a large p art of farming system through external energy input from the system introduced.4. Sunjiatan farming subsystem average energy output to input ratio of 1.29:1, aquac ulture sub-average energy input-output ratio is 0.08:1,Farming complex system of energy i nput-output ratio averaged 0.10:1 of 2010-2014, indicating that the area of energy is accu mulated, then the system development potential.5. Input and output of agriculture and animal husbandry area Sun Jia Tan composite system in the area of nutrient, but the ratio of N (0.79)> P ratio (0.48)> K ratio (0.37), the elements and the low yield of direct planting the relationship, should be found to res trict the output of limiting factors, the efficiency of nutrient.6. According to goal setting, breeding cattle target 1000 head, saying beach is obtained by limit equation of planting the best planting proportion of alfalfa, investment corn, corn m illet, millet, sorghum, potato=130.0:25.8:1:3.23:3.45:2.46.