Agronomic importance -clover White clover fixes between 60 and 300 kg N/ha /yr. Urea(尿素)isS400 per tonne,and46% N,thus clover is worth between $50 and $260 per year. The average is ~150 kg N/ha/yr (-$130 yr). F RAGES Copyright reseved by Long College of animal science,Northwest Agriculture Forestry University 西北农林科技大学动物科技学院草业科学系
__________________________________________________________________ College of animal science, Northwest Agriculture & Forestry University 西北农林科技大学动物科技学院草业科学系 Copyright reseved by Long Mingxiu • White clover fixes between 60 and 300 kg N / ha / yr. • Urea（尿素） is $400 per tonne, and 46% N, thus clover is worth between $50 and $260 per year. • The average is ~150 kg N / ha / yr (~$130 yr). Agronomic importance clover
Botanical Description-white clover >Low growing short-lived perennial legume In well adapted areas-3 to 5 years In more stressful environments only 1 to 2 years Taproot FORAGES College of animal sci 西北体
__________________________________________________________________ College of animal science, Northwest Agriculture & Forestry University 西北农林科技大学动物科技学院草业科学系 Copyright reseved by Long Mingxiu Taproot Botanical Descriptionwhite clover ÿLow growing shortlived perennial legume In well adapted areas 3 to 5 years In more stressful environments only 1 to 2 years
morphology and physiology-White clover White clover has a prostrate stem(grows horizontally along ground surface)called a stolon ● New phytomers(繁殖单位) are produced at the meristem.(分生组织) New phytomers have a leaf and a lateral bud 芽)。 FORAGES Copyright reseved by Long College of animal science,Northwest Agriculture Forestry University 西北农林科技大学动物科技学院草业科学系
__________________________________________________________________ College of animal science, Northwest Agriculture & Forestry University 西北农林科技大学动物科技学院草业科学系 Copyright reseved by Long Mingxiu morphology and physiology White clover • White clover has a prostrate stem (grows horizontally along ground surface) called a stolon. • New phytomers（繁殖单位） are produced at the meristem.（分生组织） • New phytomers have a leaf and a lateral bud（侧 芽）
拉草园怡加自 morphology and physiology-White clover 。 Since the stolon creeps along the ground,light interception(拦截) could be a problem, because it will be shaded by other plants. Clover gets around this problem by lifting its leaves above ground leve F■▣RAGES on a petiole. College of animal science,Northwest Agricuiture o rorestry universiy 西北农林科技大学动物科技学院草业科学系
__________________________________________________________________ College of animal science, Northwest Agriculture & Forestry University 西北农林科技大学动物科技学院草业科学系 Copyright reseved by Long Mingxiu • Since the stolon creeps along the ground， light interception（拦截） could be a problem, because it will be shaded by other plants. • Clover gets around this problem by lifting its leaves above ground level on a petiole. morphology and physiology White clover
Cupyrign resevedby cong College of animal science,Northwest Agriculture Forestry University 西北农林科技大学动物科技学院草业科学系
__________________________________________________________________ College of animal science, Northwest Agriculture & Forestry University 西北农林科技大学动物科技学院草业科学系 Copyright reseved by Long Mingxiu