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 Wysłany: Nie 20:45, 13 Lut 2011 Temat postu: ghd piastre Organic - inorganic fertilizer applica |
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Organic - inorganic fertilizer application on different proportions of soil physical and chemical properties of rice
Slightly higher than treatment 1 and treatment 3. This is because the fluttering of flag and fed nitrogen fertilizer than the standard, in order to take care of the organic and inorganic phosphorus ratio of feed to increase the processing 2, the amount of calcium and magnesium phosphate. The average total phosphorus content of the control area than the treatment 1,2. . 3, the average total phosphorus content is relatively low 33.76,49.27 and 27.37%. This indicates that phosphorus in the soil of gold accumulation and fluorine significantly different. It is with the fluttering of flag people have little Phosphorus, P depends only on the total amount of fluttering of flag persons. Because the mobility of phosphorus in the soil weak, some are easily soluble phosphorus into insoluble soil phosphorus, resulting in the accumulation of phosphorus in the soil down easily. 2. In terms of soil available for crop, can be absorbed by the monument to be effective. In the soil, the number of available P ratio of only a very small total phosphorus feeding. Total phosphorus simply reflects the total phosphorus storage, it can not determine the level of available phosphorus in the soil. Total phosphorus leaving the vast majority of gold is difficult effect of phosphorus and effective, involving many factors and measures fluttering of flag, which increase soil organic matter content, increasing the proportion of organic phosphorus is the main measure. From our test results (Table 5) can be seen in the facilities into a certain amount, regardless of the proportion of people how organic and inorganic phosphorus, could significantly increase the soil phosphorus content. From the average results, treatment of 17 other than the control 1,[link widoczny dla zalogowanych],2,3 (for 4) above 82.2l,[link widoczny dla zalogowanych], 80.72, and 6903. 1,2,3 However, a comparison can be seen handling,[link widoczny dla zalogowanych], coupled with a certain amount of pig manure treatment 1 and treatment 2, soil available phosphorus content was significantly higher than the fertilizer treatment 3, respectively,[link widoczny dla zalogowanych], higher than 38. %, And 37175. Soil content of that monument is not only determined to improve the facilities into the amount of phosphorus, but also depends on the ratio of organic and inorganic phosphorus cabinet, organic phosphorus greater than the reverse, the higher content of available phosphorus in the soil. This is because the organic fertilizer can increase soil organic matter content, while the process of decomposition of organic matter and soil environment created by organic phosphorus can weaken the soil and the mineralization of fixed organic acids can increase the formation of insoluble phosphate compounds Taiwan solubility, thereby increasing the content of available phosphorus in soil. Table 5 do not have disk Ga mound phosphorus (pprn) Fourth, soil structure changes sneeze mantis shake paddy soil due to seasonal flooding, which was different from the dry soil structural characteristics,[link widoczny dla zalogowanych], its structure is mainly to see the quality is good or bad It's micro-structural characteristics. Where 1 ~ O. 25mm aggregate and treatment 2> for 4> treatment 3. Handling an average of 1 to 19 for 3. {8, and treatment 3 treatment 4 lower than 7. O8. Treatment 2 and treatment 4, the results are close. Mi left that increased soil cover manure particle agglomeration, improve 1 ~ 0.25ram aggregate content, but the amount was applied to achieve a certain amount of role became apparent. The 1375 trial of pig manure per acre for 1 ~ the more obvious role, but the treatment Mushi 875.5kg 2 and its role is less clear. Large quantities of fertilizer were reduced particle agglomeration degree of soil cover. Dispersed and compacted the soil towards the direction of hair morning. Is not conducive to the improvement of soil fertility. 2. Less than O. O02mm micro-aggregates from the test results (Table 7) shows that swine manure can reduce the soil <0. O02mm the amount of micro-aggregates of Kyrgyzstan. To deal with '1 soil <0. O02mm lowest micro-aggregates, while the total inorganic fertilizer (treatment 3) the soil <o. Micro-aggregate content O02mm Table 7: I: Field at the former times of the mound <0. O02mm Cui Fen Tian Tuo the body volume () was significantly higher than that of treatment l, an average of 23.90. Large quantities of chemical fertilizers instead of fluttering of flag accompanied by a certain amount of organic fertilizer, soil cover is not conducive to particle agglomeration, the deterioration of soil permeability, increased water stagnation, topsoil with green spots exist. Conclusion The results show that organic fertilizer (manure) dominant (the amount of annual fertilizer application of 70) of the fertilizer will be good for soil organic matter, soil chloride cable, cable monument soil accumulation in the soil and provide phosphorus l, fluorine business effectiveness. Also improve the agglomeration of soil particles, increase soil aeration. Depression, a large number of long-term single application of low-fat sets down _ the amount of ancient organic matter in soil G and weakened soil aggregates and permeability. 1 cricket 2 Year 12
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