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蔡靜蔡靜金蟲 (正式寫手)
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[求助]
本科畢業(yè)論文摘要求翻譯 已有1人參與
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摘要:本文研究了長(zhǎng)期單施有機(jī)肥和化肥對(duì)蘋果園土壤理化性質(zhì)的影響,結(jié)果表明:長(zhǎng)期施用化肥蘋果園土壤的pH值較長(zhǎng)期施用有機(jī)肥偏低7%;長(zhǎng)期施用化肥蘋果園土壤的有機(jī)碳、全氮、全鉀、銨態(tài)氮、速效鉀含量與施用有機(jī)肥相比無(wú)顯著差異;但是長(zhǎng)期施用化肥蘋果園土壤的全磷、速效磷、硝態(tài)氮含量比施用有機(jī)肥顯著提高了,提高幅度依次是236.1%、204.4%、215.4%;長(zhǎng)期施用化肥降低了蘋果樹對(duì)磷素的吸收和利用,導(dǎo)致磷素在土壤中大量的累積,最終導(dǎo)致磷素的流失。 關(guān)鍵詞:化肥;有機(jī)肥;土壤;葉片;理化性質(zhì) |
榮譽(yù)版主 (文壇精英)
| This paper studies the long-term fertilization of organic manure and chemical fertilizer on apple orchard soil physical and chemical properties, the results show that the long-term application of chemical fertilizer longer-term organic apple orchard soil pH value is low 7%; Long-term application of chemical fertilizer apple orchard soil organic carbon, total nitrogen, total potassium and ammonium nitrogen, available potassium content and organic compared with no significant difference; But the long-term application of chemical fertilizer apple orchard soil total phosphorus, available phosphorus, nitrate nitrogen content is significantly higher than that of organic, increase 236.1%, 204.4%, 236.1%; Long-term application of chemical fertilizer decreased the tree p absorption and utilization, lead to the accumulation of a lot of p in soils, eventually lead to the loss of phosphorus removal. |

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