کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8878980 1624431 2018 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Indices of forage nutritional yield and water use efficiency amongst spring-sown annual forage crops in north-west China
ترجمه فارسی عنوان
شاخص عملکرد علوفه تغذیه ای و راندمان مصرف آب در میان محصولات خوراکی سالانه بهاره در شمال غربی
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
چکیده انگلیسی
Livestock production in China is increasing to meet demands for animal products, but is limited by feed resources. To explore additional forage options in north-west China, the biomass production and nutritive value of nine spring-sown annual crops (maize (Zea mays), sudan grass (Sorghum sudanense), small millet (Setaria italica), millet (Panicum milliaceum), soybean (Glycine max), common vetch (Vicia sativa), pea (Pisum sativum), oat (Avena sativa) and spring wheat (Triticum aestivum)) were compared under rainfed conditions over two years. Water use efficiencies for biomass (WUEDM) and nutritional yield indices, CP yield (WUECP) and relative feed value yield (WUERFV), were calculated. Maize produced the highest biomass yields of >10 t DM ha−1 and had the highest WUEDM. Biomass production was next highest in the other warm-season grasses such as sudan grass and millet species (6-9 t DM ha−1) and soybean (3-7 t DM ha−1), while spring wheat produced the most early biomass in spring (P < 0.05). The legumes had higher crude protein concentration and produced equivalent or higher CP yields and WUECP to the grasses (1.2-1.7 kg CP ha−1 mm−1). Maize and soybean had the highest WUERFV of 26.4 kg ha−1 mm−1 and 19.4 kg ha−1 mm−1, respectively. These integrated nutritional yield indices enabled comparisons of water productivity and optimal harvest timing across a range of forage types with differing nutritional characteristics and biomass production potential.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Agronomy - Volume 93, February 2018, Pages 1-10
نویسندگان
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