網走地域の淡色黒ボク土地帯におけるリン酸・カリウム減肥がテンサイの生育と収量に及ぼす影響

日本作物学会紀事

小松 輝行¹  伊藤 博武¹  吉田 穂積¹ 

[1] 東京農業大学生物産業学部

关键词: Sugar beet;    テンサイ;    Yield;    収量;    Phosphoric acid;    リン酸;    Potassium;    カリウム;    Low-input;    減肥;    Brown andosol;    淡色黒ボク土;   

DOI  :  10.1626/jcs.74.450

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

We examined the effect of reduced application of phosphate and potassium fertilizers on sugar beet production in brown andosol fields in the Abashiri area of Hokkaido in 2001∼2003. We could not find any significant difference in the leaf length, number of leaves and root growth between the sugar beet grown in fertilization-reduced plots and the standard fertilization ones. In 2002, the sugar content of sugar beet in the fertilization-reduced plot was higher than that in the standard fertilization plot, but no significant difference was observed in leaf and stem weight, root weight, or sugar yield between the two plots. By reducing the amount of phosphate and potassium fertilizer is reduced to about 70% of the standard fertilization, the contents of available phosphate and exchangeable potassium in the soil were kept at values higher than the diagnostic standard value of Hokkaido. These results suggested that the growth and yield of sugar beet in the brown andosol field in the Abashiri area would be unaffected by the reduced application of phosphate and potassium fertilizer.

【 授权许可】

Unknown