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作 者 ：王茹芳1;2;张夫道1;刘秀梅1;张树清1;何绪生1;王玉军1

期 刊 ：植物营养与肥料学报 2005年 11卷 3期 页码：340-344

关键词：胶结型缓释肥；小麦；应用效果；

Keywords:felted slow-release fertilizer, wheat, responses,

摘 要 ：在盆栽条件下,以不施肥CK1和施用等NPK养分化肥CK2为对照,研究了胶结型缓释肥塑料-淀粉胶结肥和粘土-聚酯胶结肥对冬小麦生长发育、产量、植株内养分含量、土壤中有效养分含量的影响。结果表明,施用粘土-聚酯胶结肥和塑料-淀粉胶结肥均能显著增加冬小麦产量,与CK2相比分别增产14.85%、27.48%;施用胶结型缓释肥能够促进小麦各生育时期叶绿素合成;与CK2相比,施用粘土-聚酯胶结肥和塑料-淀粉胶结肥分别使小麦中后期干物重增加9.24%～45.56%和7.53%～45.64%;使植株内氮素含量分别增加4.43%～12.96%,5.70%～14.42%;与CK2相比,土壤中碱解氮和速效磷含量均表现为小麦生长前期低生长中后期高,充分体现了胶结型缓释肥的养分缓释效果。

Abstract:Pot experiment was conducted to study the effects of felted slow-release fertilizer on the growth, yield and (nutrient) status of wheat and available nutrients in soil using no fertilizer (CK1) and equal rate of NPK fertilizers (CK2) as controls. The results showed that felted slow-release fertilizer increased yield significantly comparing to CK2. Applying slow-release fertilizer felted by clay and by plastic increased yield by 14.85% and 27.48%, respectively. The chlorophyll content in leaf increased due to the application of felted slow-release fertilizer. Compared to CK2, applying felted slow release fertilizer could increase the dry weights of single plant at different stages as well. For slow-release fertilizer felted by clay and by plastic increased dry weight by 9.24%—45.50%,7.53%—45.64%, respectively.The available N and P in the soil with the application of felted slow-release fertilizers were lower in earlier stage and higher in midterm and late stage than that of the control.

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