Abstract
Two experiments were carried out at Kimberley Research Station, W.A., in 1960-61 and 1961-62, to test the effects of treatment of land in the wet season prior to growing a dry season irrigated linseed crop. In both experiments, the lowest linseed yields were obtained after a resting fallow, when the land remained uncultivated over the whole wet season, and high yields were obtained after a clean fallow, involving repeated cultivations. However, in the second experiment, equally high yields were obtained after a single early wet season ploughing. Factorial combinations of herbicide and nitrogen fertilizer treatments were superimposed. From the interactions it was concluded that, in the first experiment, the beneficial effects of wet season cultivation were the result of increased available soil nitrogen supply, and, in the second experiment, of increased nitrogen supply and reduction in weed infestation.
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Claims 4
Claim · model-written summary
Linseed yields after a resting fallow were lowest compared with a clean fallow.
Verbatim
t0“yield of linseed in the Ord River Valley”
e1“the lowest linseed yields were obtained after a resting fallow, when the land remained uncultivated over the whole wet season, and high yields were obtained after a clean fallow, involving repeated cultivations”
e5“Two experiments were carried out at Kimberley Research Station, W.A., in 1960-61 and 1961-62”
Claim · model-written summary
A single early wet-season ploughing gave linseed yields equally high to those after a clean fallow.
Verbatim
t0“yield of linseed in the Ord River Valley”
e2“equally high yields were obtained after a single early wet season ploughing”
e1“high yields were obtained after a clean fallow, involving repeated cultivations”
Claim · model-written summary
In the first experiment, the beneficial effects of wet-season cultivation on linseed resulted from increased available soil nitrogen supply.
Verbatim
t0“yield of linseed in the Ord River Valley”
e3“the beneficial effects of wet season cultivation were the result of increased available soil nitrogen supply”
Claim · model-written summary
In the second experiment, the beneficial effects of wet-season cultivation on linseed resulted from increased nitrogen supply and reduced weed infestation.
Verbatim
t0“yield of linseed in the Ord River Valley”
e6“the beneficial effects of wet season cultivation were the result of increased available soil nitrogen supply, and, in the second experiment, of increased nitrogen supply and reduction in weed infestation”
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