火山灰土における燐肥の肥効増進に関する研究 : 第2報 無機化合物の効果について   :   Studies on the Improvement of the Manuring Effect of Phosphatic Fertilizers in Volcanic Ash Soils : 2. Effect of Inorganic Compounds. 

作成者 吉江, 修司, 嶋田, 永生
作成者 (ヨミ) ヨシエ, シュウジ
作成者の別表記 YOSHIE, Shuji, SHIMADA, Nagao
日本十進分類法 (NDC) 620
内容 1)火山灰土を用いて, 有効態燐酸の変化並に燐酸一石灰の肥効に及ぼす無機化合物の影響について研究した.2)無機化合物は石灰, 苦土, ソーダ, カリ, アンモニヤの各化合物を用いた.栽培試験には硫酸苦土と硫酸石灰を使用した.3)供試化合物は程度の差はあつたが, 何れも有効態燐酸の不可給態化を抑制した.即ち抑制力の最も顕著であつたのは苦土化合物, 次は石灰化合物で, 他は硫酸塩を除いては小さかつた.また一般に各塩基の硫酸塩は同じ塩基の他の塩より燐酸の有効化に効果があつた.4)石灰及び苦土の添加量の増加は可給態燐酸を増加する傾向を示した.5)栽培試験では結球白菜, ほうれん草, かんらんを用いた.硫燐苦土と燐酸塩との併用は作物の収量及び燐酸の吸収を著しく増加した.6)燐酸塩の肥効は硫酸苦土が硫酸石灰より著しく大きかつた.7)石灰及び苦土と燐酸の混合施用は分離施用に比らべ燐酸の有効燐化も肥効も高かつた.本研究は文部省科学研究費の助成を受けて行つた.昭和26及び27年に「火山灰土に於ける燐肥の肥効増進に関する研究」第2報, 第3報(1部)と題し日本土壤講演会で発表したものである.
1. Influences of inorganic compounds upon the change of available phosphorus and manuring effect of monocalcium phosphate were investigated in volcanic ash soil. 2. As for inorganic compounds, calcium, magnecium, sodium, potassium and ammonium compounds were used as well as both sulfates of calcium and magnesium were applied in case of cultivation tests. 3. Every tested compounds controlled over the change of available phosphorus into inavailable forms although somewhat different in degree. In other words, magnesium compounds were highest in the controlling which followed by calcium compounds, but the others were slight except sulfates. The sulfate of every base was generally more effective on availability of phosphate than other salts of the same base. 4. Increase in the rate of application of lime and magnesia shown a tendency to increase available phosphorus. 5. In cultivation tests, Chinese cabbage, spinach, and cabbage were used. When the magnesium sulfate was applied with the phosphate, both crop yields and phosphorus absorption were much increased. 6. The effect of magnesium sulfate on manuring of phosphate was significantly greater than that of calcium sulfate. 7. Mixed application of lime and magnesia with phosphate in the soil has been more effective on availability and manuring effect of phosphate than separated application.

公開者 千葉大学園芸学部
コンテンツの種類 紀要論文 Departmental Bulletin Paper
DCMI資源タイプ text
ファイル形式 application/pdf
ISSN 0069-3227
NCID AN00142658
掲載誌情報 千葉大学園芸学部学術報告 Vol.4 page.77-86 (19561230)
情報源 The technical bulletin of Faculty of Horticulture, Chiba University
言語 日本語
著者版フラグ publisher

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