Study On The Effects On Changes Of Soil Acidity On Changes Of Soil Nutrients

Changes in soil nutrient and its relationship with soil acidity, relevance, understanding changes of soil nutrients between soil nitrogen, phosphorus and potassium on the impact study soil p H and soil nutrients by long-term experiment of different fertilizer treatments its relationship with soil acidity, this study black soil fertilization for the study of long-term, long-term relationship studies full amount of NPK Fertilization and Soil acidity characteristics, discusses the causes and mechanisms of long-term fertilization soil acidification, fertilizer reasonable control acidification and degradation provide a theoretical basis affect.(1) Adding fertilizer with organic materials total nitrogen, organic carbon, NO3- and NH4 + impact is significant. Soil nitrogen changed greatly, which add a different amount of organic material S1 and S2 groups or with a single application of nitrogen processing nitrogen content was significantly higher than without treatment of organic materials, increase of up to 42.08%, with the fertilization of organic materials total nitrogen content was significantly affected. Adding organic material with fertilization on soil organic carbon significantly, organic materials with organic carbon fertilization highest increase of 36.42 percent, the results showed that the addition of organic material impact on soil organic carbon content reaches significant levels. S1 and S2 groups and groups not add organic matter in Group D, with a single application of N fertilizer or soil NO3- and NH4 + levels significantly influence. Straw soil NO3- and NH4 + levels significantly influence.(2) Long-term different fertilization total phosphorus and available phosphorus content on the black soil of significant organic material S1 and S2 groups and organic materials without D group, total phosphorus and available phosphorus fertilization between different single application or with P fertilizer treatment the same group were significantly higher than other treatments, and compared with the control group, with a single application of P fertilizer treatment increase the total phosphorus content of up to 70.27%. Add different amounts of organic material on the soil available phosphorus content was significantly affected, but little difference between adding different amounts of organic material S2 and S1 group, total soil phosphorus andavailable phosphorus fertilization between different D groups were significantly adding organic material below the group. Adding organic material increases the total phosphorus content of the soil and available phosphorus, Straw basis under a single facility or with P fertilizer effect on total phosphorus and available phosphorus content significantly.(3) Long-term fertilization on potassium content was between eight different treatments or with a single application of potassium fertilizer soil potassium content than other groups treated with different fertilization treatments with organic material on the total potassium and mineral potassium content on no significant effect on the potassium in potassium gentle significant increase of up to 54.55%. Straw significantly affect K and slowly available potassium content, different fertilization treatments with straw full of potassium and mineral potassium content changes on no significant application of potash fertilizer with organic material can significantly improve the efficiency of potassium moderate potassium content. Stalk significantly increased total phosphorus content of the soil and available phosphorus.(4) According to correlation analysis, soil nitrogen, ammonium and nitrate in soil acidity was significantly correlated; add organic material and increase soil organic matter content of soil organic carbon content, which affects soil exchangeable acid, exchangeable H + and CEC content; soil carbon and nitrogen ratio is not significantly correlated with soil acidity. Total soil phosphorus effects on soil acidity was not significant, and the analysis and comparison of different treatments affect total phosphorus on soil acidity, which is due to the addition of organic matter content of the organic material to increase the impact of the total phosphorus and phosphorus content of the soil, thereby affecting the soil exchangeable acid, exchangeable H + and CEC content. Different conditions of long-term fertilization soil total potassium, potassium and slowly exchangeable potassium and acid soil was significantly correlated. The results of the analysis of organic materials by adding different amounts of different forms of potassium and soil acidity showed that soil total potassium, potassium, slowly available potassium and mineral potassium to soil acidity not significantly correlated, because this may be added organic materials After the effect of increasing the content of organic matter content of the soil in different forms of potassium, while adding organic materials can affect the soil exchangeable acid, exchangeable H + and CEC content, potassium is the indirect effects of soil acidity.In summary, the long-term impact of significantly different fertilizer treatments on nutrient content of organic material without treatment or with a single application of nitrogen, phosphorus and potassium compared with the control of nitrogen, phosphorus and potassium content was significantly increased, but the addition of organic materials with fertilization the more significant changes in soil nutrients, including straw on soil ammonium, nitrate, phosphorus, potassium, slowly available potassium content on the most significant. Soil nitrogen, ammonium, nitrate impact on soil acidity significantly, adding organic material to increase the soil organic matter content of the soil in order to significantly affect the phosphorus and potassium, organic material can affect soil acidity, so soil P and K are the indirect effects of soil acidity.