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題名 | 磷肥用量對盤固草生長與品質之影響 |
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作者姓名(中文) | 謝文彰; 陳建富; | 書刊名 | 畜產研究 |
卷期 | 28:2 1995.06[民84.06] |
頁次 | 頁133-140 |
分類號 | 437.113 |
關鍵詞 | 盤固草; 磷肥; 生長; 品質; Pangolagrass; Phosphorus fertilizer; Growth; Quality; |
語文 | 中文(Chinese) |
中文摘要 | 本研究之目的在探討不同磷肥施用量施用於低有效磷(5.25 ppm)的土壤,對於盤固草的生長與品質的影響。磷肥-(P2O5)施用量150、225與300公斤/公頃/年,分三次施用。在施用初期,隨著磷肥施用量的增加,其對於株高、葉數與產量有增加的效果,處理間有顯著的差異;而第二次與第三次割後施用磷肥,其肥效則不顯著。不同磷肥量對於牧草品質與植體成分影響,隨著磷肥施用量的增加,其植體粗蛋白含量有增高之趨勢,但處理間差異並不顯著;植體中之酸、中洗纖維、P2O5、K2O、CaO與MgO含量,處理間亦無顯著差異。 隨著磷肥施用量的增加,植體吸收P2O5的百分率降低,另外從生產牧草的經濟觀點而言,隨著磷肥施量的增加,生產一公斤所需的磷肥費用亦隨之提高,而對牧草增產所獲利益,則以施用225 公斤/公頃/年的收益較高。 |
英文摘要 | The purpose of this study was to investigate the effect of using different amount of phosphorus fertilizer on the growth and quality of pangolagrass. The experimental soil containing low available P content (5.25 ppm) was supplied with different levels of phosphorus fertilizer, ie, 150、225 and 300 kg/ha/yr. At first application, the plant height, leaf number and grass yield of pangolagrass increased as the level of phosphorus fertilizer increased and there were significant difference among treatments. However the effect of phosphorus fertilizer on pangolagrass growth was not significantly different at the second and third applications. In additions, the crude protein increased as the phosphorus fertilizer level increased, but there were no difference among treatments. Acid and neutral detergent fiber, P2 O5, CaO and MgO content of pangolograss were also not different among treatments. The absorption of P2O5 in pangolagrass decreased as the supplied level of phosphorus fertilizer increased. From the economic benefit, the cost the produce a 1kg dry matter increased as the supplied level of phosphorus fertilizer increased, the benefit of grass production at 255 kg/ha/yr. The lever of phosphorus fertilizer higher than for the other treatments. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。