查詢結果分析
來源資料
頁籤選單縮合
題 名 | Response of Rice Plant to Combination Nitrogen Fertilizer Containing Urea and Slowly Available Nitrogen (SAN) Compounds=水稻對尿素與緩效性含氮化合物的混合氮肥之效應 |
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作 者 | 張則周; | 書刊名 | 中國農業化學會誌 |
卷 期 | 35:5 1997.10[民86.10] |
頁 次 | 頁495-502 |
分類號 | 434.111 |
關鍵詞 | 水稻; 緩效性氮肥; 混合氮肥; Rice; Slowly available nitrogen; Mixed nitrogen fertilizer; |
語 文 | 英文(English) |
中文摘要 | 為瞭解始肥是否為水稻栽培所必須,以及含尿素與緩效性氮化合物二乙醯二胺 (oxamide)或三聚氰胺(melamine)之巨粒混合氮肥施用於水稻栽培是否優於巨粒尿素( USG:urea supergranule),特利用Crowley坋質壤土在1/2000 acre的栽培缽中種植IR- 36之水稻,分別以五種氮肥:USG、urea/oxamide (1:1) 、urea/oxamide (4:1) 、 urea/melamine (1:1) 、urea/melamine (4:1),於插秧後4、6、8、10、15週收割地上部 ,測定氮的吸收量、氮肥利用率及稻榖及稻□產量。結果顯示:(1)始肥對生長於此實 驗土壤中之水稻初期生育之效應不顯著。(2)尿素與二乙醯二胺混合氮肥與大粒尿素之 肥效相似。(3)三聚氰胺釋氮速率緩慢,雖可使生育後期稻□增加,但因水稻不能在生 殖生長初期吸收到足夠的氮肥,以致稻穀產量降低,故三聚氰胺不宜與尿素做成混合氮肥 施用於此品種之水稻上。(4)若用此實驗土壤栽培營養生長期較長之水稻,尿素/三聚氰 胺比較高之混合氮肥將可能配合水稻生殖生長期之氮的需求。 |
英文摘要 | The object of this study was to investigate whether a starter was necessary and to evaluate whether the N-uptake and growth response of rice plants to fertilizer nitrogen from supergranules containing urea and slowly available nitrogen compounds (oxamide and melamine) were better than those of USG (urea supergranule). The results showed that (1) there was no significant difference between the starter and check treatment, either in dry weight or in N-uptake, during the early growth stage of rice plants in this experiment; (2) the efficiency of the combination nitrogen fertilizer containing urea and oxamide was similar to that of USG; (3) the grain yield following treatment using combination nitrogen fertilizer containing urea and melamine was much lower than that following treatment using USG because the rice plants could not absorb enough nitrogen in the early reproductive growth stage from fertilizer nitrogen containing melamine; (4) if rice plants having longer vegetative growth stages grew in the same soil in this experiment, the combination nitrogen compound with a higher urea/melamine ratio could meet the nitrogen requirement after the early reproductive stage of the rice plants. |
本系統中英文摘要資訊取自各篇刊載內容。