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In agriculture what is a 'ton DM/ha/year'?

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DM refers to Dry matter. When we are talking about yield from any crop, it refers generally to grain yield in many crops. But yield has many components. It consists of grain yield (economic yield), vegetative part and root dry mass. read more

The yield is measured in tons. 1000 kg is one ton. So the term “ton DM/ha/year” refers to tons of dry matter produced in a hectare of land in a year. one hectare is around 2.47 acres. read more

Research shows where soil pH was lifted from pH 5.5 to 6.3 grass produced increased by at least an extra 1.0 tonne DM/ha annually. Increased grass production from lime is worth at least €161/ha/year. read more

One, commonly used in science but less commonly used in day-to-day life, is called the “SI” system (from its French name, Système International d'Unités). read more

2000 x 0.874 dry matter x 0.576 hay TDN x $.0921 barley cost of TDN = $92.73 per ton. If you can buy this alfalfa grass hay for less than $92.73 per ton, it is a cheaper source of energy than barley. If it is a higher price, you would be better of buying barley as your feed energy source. read more

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