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grazing crop residue

Catalogue: GRDC Publications
A positive test result confirms the need for alternative tactics or herbicides... Assessing weed population density The most accurate way to estimate the population of a weed in a paddock is to count the number of plants in an area of known size at a number of locations... Estimating potential weed population density Potential weed population density can be estimated in a number of ways, such as: When weeds are setting seed, count the number of seed-heads or pods, and the number of seeds per pod or seed-head, from a given sample area...
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Catalogue: GRDC Publications
H. marinum is widely referred to as sea barley grass around the world, and H. hystrixis known as Mediterranean barley grass... Conditions that favour germination and establishment The seed of common sowthistle can germinate at temperatures in the range 5 C to 35 C. Germination is ultimately determined by moisture availability, as a moist environment is preferred... There is a high proportion of seedling emergence from shallow seed sources, whereas more deeply buried seeds remain dormant and long-lived with a half life estimated at 10 years...
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