肥料配施对土壤养分含量的影响 - 202006 - 肥料与健康
肥料配施对土壤养分含量的影响
Effect of Combined Application of Fertilizers on Soil Nutrient Content
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摘要:

为了研究肥料配施对土壤养分含量的影响,以马铃薯为试验对象,开展了田间小区试验,以期为减少因不合理施肥造成的养分资源浪费以及稳定华北马铃薯主产区高产、稳产提供理论依据。试验结果表明:随着土层的加深,土壤中有机质、全氮、碱解氮、有效磷、速效钾的含量降低,而土壤的酸碱度升高;各土层收获后与播种前相比,各处理土壤的酸碱度均增大,施氮肥处理的土壤中全氮和碱解氮含量增加,施磷肥处理的土壤中有效磷含量增加,施钾肥处理的土壤中速效钾含量增加,各施肥处理的土壤中有机质含量均增加;有机和无机均衡施肥,对提高土壤中有机质、全氮、碱解氮、有效磷和速效钾的含量效果最显著。

关键词:
Abstract:

In order to study the effect of combined application of fertilizers on soil nutrient content, field plot experiment is carried out with potato as the test object, with a view to reducing the waste of nutrient resources caused by unreasonable fertilization and providing a theoretical basis for stabilizing high and stable yield in the main potato production areas in North China. The results show that as the soil layer deepens, the content of organic matter, total nitrogen, alkali-hydrolyzable nitrogen, available phosphorus, and available potassium in the soil decreases, while the pH of the soil increases; compared with before sowing, the pH of the soil in all treatments increases after harvesting, the content of total nitrogen and alkali-hydrolyzable nitrogen in the soil treated with nitrogen fertilizer increases, the content of available phosphorus in the soil treated with phosphate fertilizer increases, the content of available potassium in the soil treated with potassium fertilizer increases, and the content of organic matter in the soil of each fertilization treatment increases; balanced organic and inorganic fertilization has the most significant effect on increasing the content of organic matter, total nitrogen, alkali-hydrolyzable nitrogen, available phosphorus and available potassium in the soil.

Keyword:
ckwx 参考文献

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