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Soil test levels of potassium, yields, and seed size in soybean cultivars1

 

作者: D. E. Peaslee,   B. F. Hicks,   D. B. Egli,  

 

期刊: Communications in Soil Science and Plant Analysis  （Taylor Available online 1985）
卷期: Volume 16, issue 8  

页码: 899-907

 

ISSN:0010-3624

 

年代: 1985

 

DOI:10.1080/00103628509367652

 

出版商: Taylor & Francis Group

 

关键词: Glycine max(L.);extractable K;leaf K;seed size;seed number

 

数据来源: Taylor

 

摘要:

The effect of soil test levels of K (1N,NH4OAc) on yields of soybean (Glycine maxMerr) reproductive growth, seed size and numbers were evaluated for early, medium, and late maturing cultivars on a Maury silt loam (Typic Paleudalf). Relative yields were near maximum when extractable K was approximately 210 pp2m. Concentrations of K in uppermost, fully expanded leaves at flower initiation at the high production level were approximately 2.0 to 2.15%.

 

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