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作 者 ：杜伟 赵秉强 林治安 袁亮 李燕婷

期 刊 ：植物营养与肥料学报 2012年 18卷 4期 页码：825-831

关键词：有机无机复混肥；磷肥利用率；新型肥料；作物产量；

Keywords:organic-inorganic compound fertilizer, P fertilizer use efficiency, new type fertilizer, crop yield,

摘 要 ：本研究采用团粒法工艺，利用味精厂玉米淀粉制糖形成的糖渣（A）作为有机原料，与磷酸一铵复混制成有机无机复混磷肥，运用土柱栽培试验研究等磷（设置低、中、高3个施磷水平）投入条件下不同有机无机比例的有机无机复混磷肥对玉米产量和磷素吸收利用的影响。主要结果为， 1）低、中、高磷水平下有机无机复混磷肥单株玉米籽粒产量平均比化肥磷（P）处理分别提高19.14 %、11.29 %和37.83 %。低磷、中磷和高磷水平下，有机无机复混磷肥比对应有机物料处理的增产幅度大于化肥磷（P）处理比对应的不施磷肥CK处理的增产幅度，有机物料与化学磷肥复混，明显提高了化学磷肥的增产效果。2）无论是施用化学磷肥还是有机无机复混磷肥，玉米植株的含磷量大都在一定程度上低于不施磷肥的CK处理，可能是施用磷肥大幅度增产引起的“稀释效应”所致；但施用磷肥处理的植株吸磷量却明显高于不施磷肥的CK处理。3）有机物料与化学磷肥复混具有优化化肥养分利用和提高化学磷肥利用率的效果。低磷、中磷和高磷水平下，有机无机复混磷肥处理平均玉米植株吸磷量比化肥磷（P）处理分别提高12.58 %、2.82 %和33.42%；低磷、中磷和高磷水平下，有机无机复混磷肥处理平均其化肥磷的表观利用率分别比化肥磷处理提高了14.85、1.22和16.04个百分点。

Abstract:In this study, organic-inorganic compound P fertilizer was made by combining organic waste material (from monosodium glutamate factory) with ammonium phosphate, potted plant experiments (setting up three input rates of total P) were conducted to investigate effects of the compound P fertilizer on yield, nutrient uptake, nutrient use efficiency of maize under the same total P application rate. The results showed that compared to the chemical fertilizer treatment, the grain yield are increased by 19.1%, 11.3% and 37.8%, respectively under the low, medium, and high P application rates of the organic-inorganic compound P fertilization. The relative increases of maize grain yield of the organic-inorganic compound P fertilizer treatments to those of the corresponding organic material treatments are greater than those of the inorganic P fertilizer treatments to no P fertilizer treatments and the organic-inorganic P fertilization increases nutrients uptake of maize. Compared to the fertilizer P treatments, the P uptakes of maize plants are increased by 12.58%, 2.82% and 33.42%, respectively under the low, medium and high total P application rates of the organic-inorganic compound P fertilization. The organic-inorganic P fertilization increases P use efficiency. In the case of the same amount of total P applied, under the low, medium and high total P application rates, the organic-inorganic compound P fertilizer applications increase the inorganic-P apparent recovery by 14.85,1.22 and 16.04 percent, respectively, compared to the ammonium-phosphate treatment.

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