پیوندهای مفید
اخبار و اعلانات
آمار
| تعداد نشریات | 158 |
| تعداد شماره‌ها | 6,230 |
| تعداد مقالات | 67,754 |
| تعداد مشاهده مقاله | 115,094,281 |
| تعداد دریافت فایل اصل مقاله | 89,844,816 |
تأثیر مراحل مختلف فنولوژیک و عوامل اکولوژیک بر روی کیفیت علوفه ای چند گونه مرتعی | ||
| مجله علوم کشاورزی ایران | ||
| مقاله 13، دوره 32، شماره 2 - شماره پیاپی 1004، اردیبهشت 1380 اصل مقاله (765.98 K) | ||
| نویسندگان | ||
| حسین ارزانی؛ جواد ترکان؛ محمد جعفری؛ عادل جلیلی؛ علی نیکخواه* | ||
| کلیدواژه‌ها | ||
| اقلیم؛ پروتئین خام؛ خاک؛ فنولوژی؛ کیفیت علوفه | ||
| عنوان مقاله [English] | ||
| - | ||
| چکیده [English] | ||
| In order determine forage quality which is one of the most fundamental prerequisites for better management of rangeland leading to higher animal performance this experiment was carried out. Five species of vegetation namely; Agropyron tauri, Ag.trichophorum, Bromus tom en tellus, Festuca avina, Hordeum bulbosum were selected to investigate effects of climate, soil as wel1 as phenological stage on forage quality. Samples were collected from] 8 vegetation communities of 8 climate zones and in three phenological stages of vegattive, flowering and seed production. Soil samples were ana lysed to determine N,P, K, and organic material. Variance analysis and cluster analysis were applied to data. According to the results; forage quality of species was significantly differences analysis among crude protein percentages of species and phenological stages in different climatic zones. There was not a significant difference observed between ADF% and NDF%, and phenological stages in different climatic zones. The results of variance analysis showed that amount ofN,P,K and organic matter differed significantly in unique climatic zones. The results of cluster analysis indicated that effect of climatic condition is more serious on forage quality than the effect of soH characteristic.. | ||
| کلیدواژه‌ها [English] | ||
| ADF, Ag, Bromus tomentellus, Climate, crude protein, Crude proteini, Festuca avina, forage quality, Hordeum bulbosum, NDF, Phenology, soil, trichophorum | ||
|
آمار تعداد مشاهده مقاله: 1,738 تعداد دریافت فایل اصل مقاله: 1,008 |
||