Effects of phosphate fertilizer and organic manure to the yield of Chinese cabbage and soil phosphorus accumulation

Китайский. 研究大量施用磷肥和有机肥对白菜产量和全磷、土壤全磷、有机磷、Olsen-P、水溶性磷及生物有效磷的影响及其各形态磷间的相关关系。采用2年微区筒肥料定位试验。磷用量150～600 mg/kg，白菜产量增加14.9%～21.5%；有机肥用量33.3～133.2 g/kg，白菜产量增加18.2%～25.9%；磷用量150、300、600 mgand#8226;kg-1及施用有机肥基础上增施磷肥，白菜产量均无显著变化；过量施用磷肥导致白菜对磷的奢侈吸收；随磷肥和有机肥用量的增加，土壤全磷、Olsen-P、水溶性磷和生物有效磷显著增加；土壤Olsen-P占全磷的比重逐渐增加；随有机肥用量的增加，土壤各形态磷均显著增加；土壤Olsen-P与水溶性磷和生物有效磷呈显著正相关，施用有机肥，土壤Olsen-P与土壤有机磷无显著相关性。过量施用磷肥和有机肥白菜奢侈吸收磷素；土壤Olsen-P与土壤全磷、水溶性磷和生物有效磷均呈显著正相关。施用有机肥显著增加土壤有机磷，施用磷肥对土壤有机磷无显著影响。

Английский. The yield response of Chinese cabbage to phosphate fertilizer and organic manure was studied. The effect with over-application of phosphate fertilizer and organic manure to plant total P content and phosphorus accumulation in soil was also investigated. The experiment was arranged in PV barrel in the field for two years. Application of phosphate fertilizer at rates of 150600 mg/kg gave an yield increase of 14.9%21.5% of Chinese cabbage. Application of organic manure at rates of 33.3133.2 g/kg gave an yield increase of 18.2%25.9% of Chinese cabbage. There was no significant difference of yield response at the rate of 150, 300, 600 mg/kg phosphate fertilizer, and there was also no significant yield response to the application of phosphate fertilizer after applying organic manure. The plant’s total P content of Chinese cabbage was increased gradually with the increase of the rate of phosphate fertilizer and organic manure. Phosphorus was absorbed luxuriously by the plant with over-application phosphate fertilizer and organic manure. The content of total-P, Olsen-P, water-soluble P, biological available P in the soil were increased with the increase of the rate of phosphate fertilizer and organic manure. Organic phosphorus in the soil was increased by the application of organic manure. Olsen-P had high correlations with water-soluble-P, biological available-P, but there was poor relationship between Olsen-P and organic-P. Phosphorus was absorbed greatly in plants with over-application phosphate fertilizer and organic manure. Olsen-P had high correlations with total-P, water-soluble-P, biological available-P, but there was poor relationship between Olsen-P and organic-P.