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Usually a seeding rate of 13–20 kg/ha (12–18 lb/acre) is recommended, with differences based upon region, soil type, and seeding method. [42] A nurse crop is sometimes used, particularly for spring plantings, to reduce weed problems and soil erosion, but can lead to competition for light, water, and nutrients.
It is the leaf and seed material in the hay that determines its quality, because they contain more of the nutrition value for the animal than the stems do. [6]: 194 Farmers try to harvest hay at the point when the seed heads are not quite ripe and the leaf is at its maximum when the grass is mowed in the field. The cut material is allowed to ...
Most yields harvested in the fall were lower in protein, but application of nitrogen 3 weeks before grazing increased digestible crude protein and consumption rates. [8] Therefore, though D. eriantha can be stored quite easily, it loses crude protein over time. Thus it is essential to use the grazed digit grass sooner rather than later.
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Hay yields from this crop are 7.5-10 t/ha, while forage matter yields range from 37-50 t/ha. Seed yields are currently low, ranging from 70–270 kg/ha. [1] However, research shows that this crop has the potential to increase in yield. Experimental seed yields of up to 2600 kg/ha have been recorded in the US and Australia. [1]
For example, using UK government Livestock Units (LUs) from the 2003 scheme [1] a particular 10 ha (25-acre) pasture field might be able to support 15 adult cattle or 25 horses or 100 sheep: in that scheme each of these would be regarded as being 15 LUs, or 1.5 LUs per hectare (about 0.6 LUs per acre).
The disease occurs when the pasture is grazed at this toxic stage. Topping the pasture before grazing may prevent the condition, but the seed heads are still toxic when preserved as hay. [7] The symptoms of poisoning are neurological, often causing a mortality rate of forty to fifty percent in infected animals. [6]
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