Effects Of Different Fertilizers On Soil Inorganic Phosphorus Forms And Maize Quality Yield In Reclaimed Soil

In order to study the effects of different fertilizer application on soil inorganic phosphorus forms and the quality and yield of Maize under different reclamation years in the coal mining subsidence area, this paper studied the change regulation of total phosphorus?available phosphorus?inorganic phosphorus classification?phosphorus adsorption desorption?corn quality?and yield of one year, three years?seven years of reclaimed soil in Xi shan coal mining subsidence area of Xian Yuan county, draw the following conclusions:?1?The effects of different fertilization treatments on the total phosphorus content of Maize in reclaimed area were higher than that CK, and the difference was not significant between treatments.The effect of soil organic fertilizer and phosphate solubilizing bacterial manure fertilizer on soil total phosphorus content of one year, three years?seven years reclamation soil was higher than other treatments, reached by 445.4mg/kg?566.8mg/kg respectively, but the effect of inorganic fertilizer, organic fertilizer and phosphorus fertilizer on soil total phosphorus content was the most significant in seven years reclamations soil, reached by 669.3mg/kg.?2?The effects of different fertilization treatments on soil available phosphorus content of Maize in three years and seven years were significantly higher than CK, the effects of organic fertilizer and phosphorus fertilizer treatment on the content of total phosphorus was better than the other treatment,reached by 9.32mg/kg?16.31 mg/kg?27.49mg/kg respectively.?3?The effects of different fertilization treatments on the inorganic phosphorus forms in the reclamation area were significantly higher than CK, the effect of organic fertilizer and phosphorus bacterial fertilizer on the Ca₂-P?Cas-P?Al-P?Fe-P of one year?three years?seven years reclamation soil was most significant. The effect of inorganic fertilizer treatment on the soil O-P and Ca₁₀-P content of one year, three years?seven years reclamation soil was most significant, reached by 63.02mg/kg?64.15mg/kg? 65.05mg/kg and 173.20mg?182.38mg/kg?202.22mg/kg.?4?Different treatments of soil phosphorus adsorption and desorption increased with increasing concentration of external phosphorus. Among them, The CK treatment on soil phosphorus adsorption capacity were higher than other treatments, Organic fertilizer and phosphorus fertilizer of one year reclamation soil reduced significantly the adsorption capacity of soil phosphorus, but in the three and seven years reclamation soil, the organic fertilizer phosphorus fertilizer treatment reduced significantly soil phosphorus adsorption capacity.?5?The effects of different fertilization treatments on fat, starch and protein content in maize were significantly higher than CK. Among them, the effect of Inorganic fertilizer, organic fertilizer and phosphorus fertilizer on the grain fat, protein content of maize was the most significant, reached by 5.51%,5.57%,5.60%,67.97%,68.73%,69.13%,9.7%,10.1%,10.5% respectively.?6?The effects of different fertilization treatments on the land reclamation for one year, three years and seven years, the yield of maize were higher than CK, and the difference was significant. The Maize yield was the highest by organic fertilizer and phosphorus bacterial fertilizer in one year, three years reclamation soil, reached by 424.82kg/mu,542.18kg/mu, compared with other treatments, improved by 7.21%-50.22%,2.36%-30.78% respectively. The Maize yield increased most significantly by inorganic fertilizer+ organic fertilizer+ phosphorus bacterial fertilizer in seven years reclamation soil, reached by 741.99kg/mu.?7?Compared with the treatment without addition of phosphorus fertilizer, ?inorganic fertilizer and organic fertilizer phosphate solubilizing bacterial manure, inorganic fertilizer phosphate solubilizing bacterial fertilizer, organic fertilizer solution phosphorus fertilizer? the treatment with phosphorus fertilizer improve soil total phosphorus, available phosphorus, Ca₂-P?Ca₈-P?Al-P?Fe-P, adsorption desorption and corn protein?starch?fat content and yield, reducing the content of O-P and Ca10-P of one, three, seven years reclamation soil.