水稲が加里欠乏を惹起する土壌条件の研究(第3報)
スポンサーリンク
概要
- 論文の詳細を見る
For the purpose to investigate specific charactor of soil which easily appeares the potash deficient symptoms to the rice plant, soil samples were collected from the several locality in Kyushu province. And investigated the relationship between dificulity or ease to appear the potash deficient symptoms and the Total K_2O, N/2 acetic acid soluble K_2O, potash fixation and the Ratio of ammonia absorptive power and potashium absortive power. The results summarized are follows : (1) We could not recognized the relationship between the deficulty or ease to appear the potash deficient symptoms on the rice plant and Total K_2O. (2) We have recognized the relationship between the dificulty or ease to appear the potash deficient symptoms on the rice plant and N/2 acetic acid soluble K_2O. But this relation are not higher so much. (3) We could not recognized the relationship between the deficulty or ease to appear potash deficient symptoms and the power of potash fixation. (4) The equivalent ratio of N and K_2O absorptive coeficient vary with the soil. And the soil which easily appear the potash deficient symptoms have the specific charactor, namely potassium absorptive coeficient higher than the nitrogen absorptive coeficient. (5) One milligram equivalent N and K_2O added to the 100gr air dry soil one by one or together. And applied the 0.1N or 0.01N solution of NaCl, CaCl_2,NH_4Cl or KCl and then analysed the K_2O and NH_4-N. The K_2O/N of soil which easily appear the potash deficient symptoms lower than other soil K_2O/N (6) The equivalent ratio and K_2O absorptive coeficient of 36 paddy soil in Kyushu have indicated the value of 1.0〜4.4 and 2.2 as average. The Granite soil and Tertiary soil have higher value than other soils.
- 社団法人日本土壌肥料学会の論文
- 1951-03-31
著者
関連論文
- 無機緩効窒素肥料の研究 : 固形石灰窒素(その1)
- 暖地水稲の無機養分吸収に関する研究(第1〜3報)(日本土壌肥料学会秋季大会講演要旨)
- 紫雲英品種比較試験成績(日本土壌肥料学会秋季大会講演要旨)
- 水稲が加里欠乏を惹起する土壌条件の研究(第3報)
- 水稲が加里欠乏を惹起する土壌条件の研究(第2報)
- 水稲が加里欠乏を惹起する土壌条件の研究(第21回日本農学大会土壌肥料学部会)
- 秋落水稲の生理化学的研究(第1報) : 生育各期に於ける根群の蔓延状況(第21回日本農学大会土壌肥料学部会)
- 水稲に於ける加里補給欠除時期が水稲の生育並びに収量に及ぼす影響に就て
- 加里欠乏が水稲穂の枝梗数に及ぼす影響に就て
- 昭和十七年水稲作に現はれたる加里欠乏症状に就て
- 上場畑土壌の改良に関する研究
- 梨園跡地に於ける水稲の生育不良対策試験成績(第一報)
- 水稲が加里欠乏を惹起する土壌条件の研究(第1報)