南西諸島の極強酸性土壌における家畜ふん堆肥施用がソバ（Fagopyrum esculentum Moench）の生育と収量に及ぼす影響

日本作物学会紀事

高嶺（山口） 典子²  住 秀和²  荒川 祐介²  竹内 誠人¹  照屋 寛由¹  生駒 泰基²  塩野 隆弘³  原 貴洋² 

[1] 沖縄県農業研究センター;九州沖縄農業研究センター;農村工学研究所

关键词: Composted manure;    家畜ふん堆肥;    Dolomite;    苦土石灰;    Okinawa;    沖縄;    Pineapple;    パイナップル;    Soil conservation;    土壌保全;    Soil Erosion;    赤土等流出;    Sugarcane;    サトウキビ;   

DOI  :  10.1626/jcs.80.35

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

Soil erosion due to rainfall is a serious problem in acid soil region in subtropical Japan. Introducing new crops which can be used in rotation with sugarcane and pineapple is expected to alleviate soil erosion. We developed a buckwheat cultivation method suitable for acid soil with pH 3.9∼4.2 in subtropical Japan. We examined the effects of composted manure and dolomite on the growth and grain yield of buckwheat. The composted manure was applied at a rate of 1∼3 g m-2 and dolomite at the rate of 200 and 500 g m-2. Application of composted manure significantly increased grain yield and shoot weight. Grain yield was 171∼235 g m-2 when composted manure was applied, whereas 75∼104 g m-2 when neither composted manure nor dolomite was applied. Shoot weight was 174∼291 g m-2 when composted manure was applied, but 95∼100 g m-2 when neither composted manure nor dolomite was applied. The amount of shoot obtained in the experiment by applying composted manure is considered enough to substantially decrease soil erosion caused by rainfall, if the shoot is used for mulch to cover soil surface. No significant effect of applying dolomite on grain yield and shoot weight was detected. Applying composted manure significantly elevated soil pH, which did not exceed pH 7 at which pineapple growth would be damaged.

【 授权许可】

Unknown