福岡県農業総合試験場研究報告14（1995） pp 42 - 45
砂質未耕土を心土に客入した鉱害復旧田の改善
第一報 混層耕によるせき薄心土の改善が作物の生育収量に及ぼす影響
豊田正友・三井寿一
鉱害復旧田のせき薄心上の改善を図るため混層耕について検討した。@せき薄士が心土として客入，転圧された鉱害復旧田では，作土表面に牛ふん堆肥を３ｔ／１０ａ程度施用した後，約２５ｃｍの深さに混層耕すると，水稲及び小麦の生育，収量が増加した。A堆肥を施用して混層耕すると，心士の理化学性が改善され，心土における水稲の根量が増加した。また，土壌の保水力が増し，麦作期間中の過乾燥が防止された。
［キーワード：鉱害復旧田，せき薄心士，堆肥，混層耕］
Improvement of Poor Subsoil on the Paddy Fields Restored from Coal Mine Damage (1) Effect of Soil Layers Mixing on the Growth and Yield of Crop Plant. TOYODA Masatomo and Hisakazu MITSUI (Fukuoka Agric. Res. Cent. , Chikushino, Fukuoka 818, Japan) Bull. Fukuoka Agric. Res. Cent. 14 : 42-45 (1995)
We investigated the effect of soil-layers mixing on the paddy fields restored from coal mine damage in order to improve poor subsoil. A soil-layers mixing was carried out to a depth of about 25cm after applying compost approximately 3t/10a of cattle feces on the surface of plowed soil. This treatment increased the growth and yield of rice plant and wheat. This also improved the psysicochemical properties of subsoils and increased the amount of root of rice plant in subsoil.Increased in water retentivity of subsoil prevented overdrying of the top soil during the wheat culture season.
[Key words : Paddy field restored from coal mine damage, Poor subsoil, Cattle feces compost, Soil-layers mixing]
全文 pdf (477KB) 写真１ jpg (59.8KB)
