頁籤選單縮合
題名 | 矽肥與氮肥之施用對玉米螟為害量之影響= |
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作者 | 朱耀沂; 洪淑彬; |
期刊 | 國立臺灣大學農學院研究報告 |
出版日期 | 19940300 |
卷期 | 34:1 1994.03[民83.03] |
頁次 | 頁45-53 |
分類號 | 433.32 |
語文 | chi |
關鍵詞 | 矽肥; 氮肥; 玉米螟; 玉米性狀; Asian corn borer; Slag; Nitrogen; Corn damage; Corn characters; |
中文摘要 | 在田間以施用矽肥(1公噸/公頃)與否及中肥(基肥及追肥各施用硫酸氨 300公斤)與重肥(多加一次追肥)等四種施把處理栽培臺農351號飼料玉米、調查其 農藝性狀和玉米螟之為害程度,以探討矽肥和氮肥對玉米產量和蟲害之影響。結 果顯示氮肥和矽肥均有增加玉米莖直徑之效果,但對葉面積之增加影響不顯著。 又矽肥可增加玉米莖外部硬度,氮肥則有相反之作用;莖內部硬度則僅不施矽肥 之重肥組顯著較低。多氮栽培提高玉米螟成蟲之產卵偏好性,然施矽處理則有相 反效果。不同施肥處理組的穗重和葉片受害等級均有顯著差異,不施矽肥之重肥 處理組的穗重最輕,而葉片和莖受害最嚴重。不施矽肥玉米,受蟲害時對玉米花 重之影響較大,尤其葉片之受害程度最嚴重。而施矽處理組則以莖直徑對玉米穗 重之影響最大。 |
英文摘要 | Field experiment was conducted to study the influences of slageand nitrogen fertilizer on the damage of Asian corn borer to cornand the yield of corn. The results showed that the application onslag (I ton/ha.) and heavy rate of nitrogen fertilzer (900kg/ha.)significantly increased the stem diameter, hardness of outer partstem, and the number of egg masses deposited by Asian corn borer on leaves. Application of heavy rate nitrogen fertilzer without slagsignificantly decreased the hardness of stem inner part. There wereobvious differences in ear weight and leaf damage rating between thecombined application of slag and nitrogen and nitrogen fertilzer only.The result showed that the plants treated with heavy nitrogen hadlowest ear weight, more severe damages on leaves, stems and ears.Through the application of slag, the multiple regression analysis andpath analysis, for non-slag treatment, leaf damage appeared to be themost importnat factor that influencing the ear weight; but in theslag treatment, the stem diameter became the main factor affecting the ear weight. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。