氮磷鉀配施對夏陽白肥料利用率及產(chǎn)量的影響

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摘要 采取田間小區(qū)試驗，研究氮磷鉀配施對夏陽白肥料利用率及產(chǎn)量的影響，探索夏陽白對NPK肥料的利用效率，以期為夏陽白科學(xué)施肥提供科技支撐。結(jié)果表明，N肥對夏陽白生物產(chǎn)量、經(jīng)濟(jì)產(chǎn)量影響最大，K肥次之、P肥第三，N、P、K肥料配合施用能顯著提高肥料利用率，是提高夏陽白產(chǎn)量的關(guān)鍵措施。

關(guān)鍵詞 氮磷鉀配施;夏陽白;肥料利用率

中圖分類號 S 634  文獻(xiàn)標(biāo)識碼 A  文章編號 0517-6611（2022）09-0148-02

doi：10.3969/j.issn.0517-6611.2022.09.037

開放科學(xué)（資源服務(wù)）標(biāo)識碼（OSID）：

Effect of Combined Application of Nitrogen， Phosphorus and Potassium on Fertilizer Utilization Rate and Yield of Xiayangbai

GUO  Li-jun1， YIN  Ling-jie2， LI Chao1 et al

（1.Hunan Soil and Fertilizer Institute， Changsha，Hunan 410125;2.Hunan Agricultural Research and Analysis Center， Changsha，Hunan  410005）

Abstract A field plot experiment was conducted to study the effect of combined application of nitrogen， phosphorus and potassium on fertilizer utilization efficiency and yield of Xiayangbai， and to explore the utilization efficiency of NPK fertilizer， so as to provide scientific and technological support for scientific fertilization of Xiayangbai. The results showed that N fertilizer had the greatest effect on the biological yield and economic yield of Xiayangbai， followed by K fertilizer， P fertilizer. The combined application of N， P and K fertilizer could significantly improve the fertilizer use efficiency， which was the key measure to improve the yield of Xiayangbai.

Key words Combined application of nitrogen，phosphorus and potassium;Xiayangbai;Fertilizer use efficiency

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