宜蘭地區低產稻田地力改善對稻米生產之影響

Improvement of Soil Productivity for Low-Yielding Paddy Field in I-Lan Area

莊義雄(Yih-Shyong Chuang)

《花蓮區農業改良場研究彙報》 7期 (1991/05) Pp. 5-6

摘要

利用矽酸爐渣、穀殼、石灰石粉、氰氮化鈣等四種土壤添加資材，以改善宜蘭地區排水不良之酸性稻田地力，探討其對水稻增產效益，並經由產量構成要素，乾物質生產量，收穫指數、解析增產之可能原因。經二年四期作試結果得知，施用土壤添加資材之各試區產量構成要素，全株乾物重及收穫指數均較對照區（不施用添加物）增加，其稻穀產量以每公頃施用矽酸爐渣2公噸區最佳，較對照區增加9.3∼14.2%，次為每公頃施用穀殼30公噸區，較對照區增加7.7∼11.9%，又施用石灰石粉2ton/ha和氮肥基肥改以氰氮化鈣施用區，亦分別超過對照區4.8∼9.9%和3.3∼7.1%。顯示在低產稻田施用土壤添加資材有利地力之改善，可提高稻穀產量。

關鍵字

低產 ； 稻田 ； 地力

並列摘要

Amendment of soil with silicate slag, rice husk, lime and calcium cyanamide was applied to improve the productivity of low-yielding paddy field of I-Lan area. Taiwan 9 cultivar was grown from the second crop of 1988 to the first crop of 1990 in I-Lan for the experiment, and dry matter accumulation, harvest index, the components of yield were determined. Results indicated that agronomic characters were greatly improved by soil amendments than control. The yields treated with silicate slag, rice husk, lime and caicium cyanamide were higher by 14.2%, 11.9%, 9.9%, 7.1%, than control, respectively and silicate slag was the best among them.

並列關鍵字

Low-yieding ； Paddy field ； Soil productivity