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Tarwi is an erect, annual, cool-seasonnitrogen-fixing plant that grows up to 2.5 m in height. For human consumption, the seeds must be soaked in water for several days to remove bitter alkaloids. The seeds are high in protein, pressed for oil, and fed to livestock. Tarwi is a good green manure or...
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Glycine is a perennial, vining, nitrogen-fixing, green manure or cover crop that may be grown to suppress weed growth, improve the soil nitrogen supply, and slow soil erosion. It is also a forage crop that can be grown in pure stands for hay or in a mixed pasture system.
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Prickly sesban is a fast-growing, annual, nitrogen-fixing shrub, growing up to 2 m in one season. It is valuable for soil improvement, erosion control, firewood, forage, fiber, and as a green manure/cover crop.
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Sesbania grandiflora is a small, fast-growing, nitrogen-fixing tree, that can grow to 10 m height in 3-4 years. This plant is grown mainly as a green manure or cover crop but can also be used as forage for livestock.
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Tropical kudzu is a perennial, vigorous, deep-rooted, vining or climbingnitrogen-fixing plantwith vines up to 10 m long. This crop tolerates high water levels (even occasional water logging), grows well in the dry season, and can tolerate acidic soils and shade. It is used as a forage, green...
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Crimson clover is a temperate, annual, nitrogen-fixing plant that can grow to 1 m in height. This clover is grown for seed, hay, silage, pasture for most livestock, and soil improvement. It is widely grown as a winter crop to be tilled under in the spring.
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Sesbania is a fast-growing, nitrogen-fixing perennial, growing to 7 m in height. It is typically found in wet locations and can withstand water logging and flooded conditions. Sesbania is used as a cover crop or green manure, coppices readily, provides light fuelwood, and good forage for...
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Stylosanthes guianensis is an upright, short-lived perennial legume. At maturity, the crop is a deeply taprooted and multi-stemmed sub-shrub. Leaves are trifoliate, and yellow-to-orange flowers are borne on spikes. Flowers give way to one-seeded pods, 2-3 cm long, containing small brown-to-purple...
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Cover crops play a key role in sustainable agriculture by providing sustainable sources of nutrients as well as protective soil cover to minimize erosion and reduce moisture stresses. Examples of successful cover cropping systems in East Africa will be illustrated as well as constraints and...
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Fish bean is a short-lived perennial, semi-woodynitrogen-fixing plant that growsup to 3 m in height. Itis used for green manure, erosion control, and mulch. It is known to contain rotenoids and can be used as an insecticide and fish poison. Fish bean should NOT be used as fodder for animals.
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