Study On The Development Of "Four-In-One" Eco-Agriculture Model In Jinzhong Shanxi

"Four-in-one" eco-agricultural model integrated sunlight greenhouse, animal house, toilet and biogas cellar, which enabled planting and breeding to combine organically and change waster into treasure, realizing multi-circle utilization of organic matter by ferment function of biogas cellar. It made the production no pollution and no waste come true.The paper has analyzed and appraised "four-in one" eco-agricultural model from input substitute, energy transfer and system benefit etc. by investigating several experiments in Jinzhong Shanxi.The paper has studied the energy flowing, input substitute and system benefit of the "four-in one" eco-agricultural system in Jinzhong Shanxi. The results are listed as follows:1. In whole growing season, in planting system (800 kidney beans, 175days) , the harvested fruits were 1321.0kg, corresponding to 188.89kg, dry material and 2240MJ output energy. The produced straw was 1144.26kg, corresponding to 186.07kg dry material and 3500MJ output energy. The roots were 377.10kg, corresponding to 50.23kg dry material and 9400MJ output energy. The average biomass yield was 8.46kg/m~2, and the average economic yield was 3.93kg/m~2. The total biomass was 2842.42kg, corresponding to 355.19kg, dry material and 6680MJ general photosynthesis energy. The percentage of the output energy for economic production of total fixed energy was 33.53%. The output energy of biomass was 19.9MJ/m~2,487340MJ effective photosynthesis. The using rate of energy was 1.37%.2. In breeding system (4 pigs 172 days) , the input forage was 1451.58kg, corresponding to 17820MJ input energy and the output of pig was 451.44kg, corresponding to 11700MJ output energy. During the experiment, the amount of excrement the four pigs discharged was 1576kg and the urine was 2076kg, corresponding to 11700MJ output energy. The ratio of forage/pig was 3.75:1;the input/output of energy was 1.52:1 and the forage/meat was 4.30:1. The efficiency of forage was 21%.3. In the ferment system (8m~3 biogas pond , month: 1-7) , the input of excrement and urine was 11448kg, corresponding to 41540MJ input energy;the output of biogas gas was 124.7m~3, corresponding to 2610MJ output energy;the output of biogas slurry was 6000kg,corresponding to 460MJ output energy;the output of biogas residues was 3300kg, corresponding to 4180MJ output energy and the total output energy of this system was 7250MJ.The ratio of input/output of energy was 5.72:1;the invert percentage of energy was 17.45%.Besides, another experiment was conducted, the nutritional composition and the mainly amino acids of vegetable marrow grown by biogas fertilizer and chemicals respectively in "four-in one" eco-agricultural greenhouse were analyzed.4> "Four-in-one" eco-agricultural model already popularized in Jinzhong Shanxi, we will combine practice instance of countrysides town and village, model will from courtyard to farmland, empolder and using waste hill and waste slope, model whole structure will develop towards economy % reason and adaption. Biogas ferment technics must be perfected, integrate using biogas and biogas fertilizer. We need to summarize a suit of first-rank integrate mix-set technology, procreate no social effects of pollution vegetables.