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通过盆栽试验的方法,研究高肥力土壤中磷与锌的交互作用。研究结果表明:(1)土壤不施磷肥时,锌肥的投入能提高玉米的生物学产量及氮磷钾养分吸收量;(2)土壤施磷肥量与锌肥施用量密切相关。土壤施入0.04g/盆的低量锌后,以配施0.3g/盆的P2O5为宜;土壤施入0.08g/盆的高量锌后,盆施0.6gP2O5玉米的生物学产量及养分吸收量最高。因此高肥力土壤施用磷肥应以有效锌含量为基础,实行以锌定磷。
Pot experiments were conducted to study the interaction between phosphorus and zinc in highly fertile soils. The results showed that: (1) When no phosphorus was applied to soil, the input of zinc fertilizer could increase the biological yield of corn and the absorption of nitrogen, phosphorus and potassium; (2) The amount of phosphorus application in soil was closely related to the amount of zinc fertilizer applied. Soil application of 0.04g / pot of low amount of zinc, with the application of 0.3g / pot of P2O5 is appropriate; soil application of 0.08g / pot of high zinc, pot 0.6gP2O5 maize biology The highest yield and nutrient uptake. Therefore, the application of high-fertility of soil phosphate should be based on the effective zinc content, the implementation of zinc fixed phosphorus.