不同黄腐酸对苗期玉米生长及土壤养分含量的影响 - 202203 - 肥料与健康
不同黄腐酸对苗期玉米生长及土壤养分含量的影响
Effects of Different Fulvic Acids on Maize Growth at Seedling Stage and Soil Nutrient Content
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摘要:

为考察黄腐酸螯合锌在苗期玉米上的施用量及黄腐酸、黄腐酸钾的施用效果,以冲施等量清水为对照处理,开展了盆栽冲施试验。结果表明:冲施黄腐酸螯合锌、黄腐酸、黄腐酸钾对苗期玉米株高、茎粗和叶片相对叶绿素含量(SPAD值)均有促进作用;黄腐酸螯合锌B对玉米株高的促进作用大于黄腐酸螯合锌A的,两者对玉米茎粗和SPAD值的促进作用基本相当;综合考虑玉米长势、地上部养分积累量及土壤养分含量,黄腐酸螯合锌A和黄腐酸螯合锌B的冲施质量分数分别以0.10%~0.30%、0.08%为宜。

关键词:
Abstract:

In order to investigate the application amount of zinc fulvate on maize at seedling stage and the application effect of fulvic acid and potassium fulvic acid, a pot irrigation fertilization experiment is carried out with irrigation fertilization of the same amount of clear water as the control treatment. The results show that the application of zinc fulvate, fulvic acid, and potassium fulvic acid has a promoting effect on the plant height, stem diameter and leaf relative chlorophyll content (SPAD value) of maize at seedling stage. The promoting effect of zinc fulvate B on maize plant height is better than that of zinc fulvate A, and the promoting effects of both on maize stem diameter and SPAD value are basically the same. Considering the maize growth, aboveground nutrient accumulation and soil nutrient content, the appropriate mass fractions of flushing application zinc fulvate A and zinc fulvate B are 0.10%~0.30% and 0.08% respectively.

Keyword:
ckwx 参考文献

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