Effect of combination manure and chemical fertilizer on the dynamical changes of purple soil nutrient and soil enzyme activities | 绮ヤラ藉绱插诲舵椿ч惧ㄦ褰卞
2011
Shi Xian, Honghe University, Mengzi (China), College of Life Science and Technology | Yuan Ling, Southwest University, Chongqing (China), College of Resource and Environment
[Objective] The aim was to study on the effects of manure and fertilizer application on the content of nutrients in purplish soil as well as release dynamics of enzyme activities. [Method] The effects of manure and fertilizer application on the content of AOM, NH4+-N and NO3--N in soil as well as release dynamics of enzyme activities is studied by means of simulation culturing. [Result] In the treatments of combined application of simulation culture experiment, the content of active organic matters, NH4+-N, NO3--N and soil enzyme activities changed dynamically, which showed a shape of inverted "S" with two or more peaks. Compared with the treatment of fertilization, their peaks were relatively flat and occurred relatively late, while the treatment of fertilization had only one but the highest peak. The content of active organic matter came to top around 10 d in the order of cow5fertilizer5锛pig5fertilizer5锛cow manure锛pig manure锛fertilizer锛fertilizer★the activity of urease came to top around 10d in all treatments and in the order of pig manure锛cow5 fertilizer5锛cow manure锛fertilizer锛fertilizer★pig5fertilizer5. The activity of saccharase is in the order of pig5fertilizer5锛pig manure锛cow5fertilizer5锛cow manure锛CK锛fertilizer★fertilizer. [Conclusion] The study could provide the theoretical basis for reasonable application of manure and fertilizer.
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