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Sources of nitrogen in a Napier grass/legume mixture on smallholder dairy farms in central Kenya

机译：肯尼亚中部小农户奶牛场纳皮尔草/豆科植物混合物中的氮源

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In Kenya, dairy production is a major source of smallholder farm income, especially in recent years after the collapse of coffee prices.The smallholder dairy systems are characterised by low weight gains in young stock and low milk production (5‐6 kg cow‐1 day‐1 ).The low yields are attributed to inadequate year‐round feed supply, protein and energy intake.The main source of forage is Napier grass ( Pennisetum purpureum ) grown in monoculture.A Napier grass/forage legume mixture can address the constraints to forage yield as the legumes have the ability to fix atmospheric nitrogen (N) through their symbiotic association with rhizobia (Giller, 2001).

机译：在肯尼亚，乳制品生产是小农农场收入的主要来源，尤其是在近年来咖啡价格暴跌之后的几年。小农乳制品系统的特点是幼畜增重低，牛奶产量低（5-6公斤牛-1第1天）。低产归因于全年饲料供应，蛋白质和能量摄入不足。牧草的主要来源是单一种植的纳皮草（Pennisetum purpureum）。豆科植物通过与根瘤菌共生而具有固定大气氮的能力（Giller，2001）。

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《2008世界草地与草原大会论文集》|2008年||共1页
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D.M.Mwangi;
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nitrogen; Pennisetum purpureum; Desmodium; M acrotyloma; Noenotonia;

机译：氮;紫草;脱皮;肩峰炎;诺氏菌;

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1. Grass-legume mixtures can yield more nitrogen than legume pure stands due to mutual stimulation of nitrogen uptake from symbiotic and non-symbiotic sources [J] . Nyfeler Daniel, Huguenin-Elie Olivier, Suter Matthias, Agriculture, Ecosystems & Environment: An International Journal for Scientific Research on the Relationship of Agriculture and Food Production to the Biosphere . 2011,第1a2期

机译：由于共生和非共生来源对氮的吸收，草-豆混合物比豆类纯种能产生更多的氮。
2. Randomized controlled trial on impacts of dairy meal feeding interventions on early lactation milk production in smallholder dairy farms of Central Kenya [J] . Richards Shauna, VanLeeuwen John A., Shepelo Getrude, Preventive Veterinary Medicine . 2016,第Null期

机译：肯尼亚中部小牧场奶牛场奶粉喂养干预对早期泌乳奶产量影响的随机对照试验
3. Niche-based assessment of contributions of legumes to the nitrogen economy of Western Kenya smallholder farms [J] . John O. Ojiem, Bernard Vanlauwe, Nico de Ridder, Plant and Soil . 2007,第1a2期

机译：基于生态位的豆类对肯尼亚西部小农农场氮经济贡献的评估
4. The maize crop as a source of food and feed for livestock on smallholder dairy farms in the kenyan highlands [C] . B.A Lukuyu, D.L Romney, J C Tanner Annual Meeting of the British Society of Animal Science . 2000

机译：玉米作物作为肯尼亚高地小农奶牛场的牲畜食品和饲料来源
5. Effect of cereal/grass and legume cover crop monocultures and mixtures on the performance of fall-planted cover crops, soil mineral nitrogen and short-term nitrogen availability. [D] . Odhiambo, Jude Julius Owuor. 1998

机译：谷物/草类和豆类覆盖作物单一栽培和混合物对秋季种植的覆盖作物性能，土壤矿质氮和短期氮素利用率的影响。
6. Pilot Study on the Impact of Biogas as a Fuel Source on Respiratory Health of Women on Rural Kenyan Smallholder Dairy Farms [O] . Carolyn Dohoo, Judith Read Guernsey, Kimberley Critchley, 2012

机译：关于沼气作为燃料对肯尼亚农村小农奶场妇女呼吸健康影响的试验研究
7. Niche-based assessment of contributions of legumes to the nitrogen economy of Western Kenya smallholder farms [O] . Ojiem J.O., Vanlauwe B., Ridder N. de, 2007

机译：基于生态位的豆类对肯尼亚西部小农农场氮经济贡献的评估
8. Potential of Dairy Goats as a Source of Milk on Smallholder Farms in Kenya [R] . Bradford, G. E. 1984

机译：肯尼亚小农场奶山羊作为牛奶来源的潜力

Sources of nitrogen in a Napier grass/legume mixture on smallholder dairy farms in central Kenya

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