豆科綠肥與覆蓋作物育種及農地永續性利用之研究

Abstract

鵲豆品系試驗春作100天鮮草產量以TS92-16G之每公頃66750公斤為最高產，乾物重為每公頃11750公斤，而氮素含量則以TS92-24G之每公頃374公斤為最高。氮肥對不同耕作模式之一期水稻台梗8號之產量影響，以綠肥輪作之水稻對氮肥的利用效率高，綠肥輪作之一期水稻施用每公頃800公斤氮肥，其稻穀產量每公頃9574公斤，明顯高於水稻連作之一期水稻產量，其增產指數為7.1%。 In the first-year line trial for hyacinth, TS92-16G was the most superior of all lines in the spring crop season of 2004. TS92-16G harvested at 100 days of growth is 66,750 kg/ha fresh weight and 11,750 kg/ha dry weight. TS92-24G was the highest nitrogen content-347kg/ha. Rice grown after green manure soybean was 7.1% higher grain yield than continuous cropping, which was 9,574 kg/ha grain yield in the spring season.