590 research outputs found

    Magnesium deficiency of apples and oranges

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    Magnesium deficiency is a common problem of orchards of Western Australia. The deficiency affects both apples and oranges, but in most cases is not particularly severe. Leaf sprays of magnesium sulphate (Epsom Salts) have successfully controlled the deficiency. Two percent strength is recommended. Soil treatment to give long-term control has not yet been determined successfully in Western Australia

    Fertilising quota wheat crops

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    BEFORE wheat quotas were introduced, a farmer had to make two major decisions on fertilisers for wheat crops each year—what area to crop; and how much fertiliser to use

    Legumes or artificial nitrogen?

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    Choosing between legumes and artificial nitrogen is not the problem which many farmers are making it. This article deals with the choice in the mixed cereal and sheep farms of the Western Australian wheatbelt

    Reduction of pre-harvest drop of washington navel oranges by 2,4-D sprays

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    The uses of various synthetic plant hormones in agriculture are many—one of the most generally known of these uses being their action in reducing pre-harvest drop of fruit. Naphthalene acetic acid, commonly known as N.A.A. is widely used for this purpose with apples, but 2,4-DichIorophenoxyacetic acid, commonly known as 2,4-D, is much more effective with citrus fruit

    The effectiveness of 2,4-D in preventing pre-harvest drop of navel oranges

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    An experiment was carried out to test the suitability of combining a 2,4-D hormone spray, to prevent mature fruit drop of Navel oranges, with a routine fungicidal spray of Bordeaux mixture. The hormone was tested at two concentrations. The results of the experiment indicated that under the conditions tested the 2,4-D spray could not be successfully combined with Bordeaux mixture and the concentration of 20 parts per million was superior to 10 parts per million. The lower concentration may be equally effective with a high rate of spray application

    Control of copper, zinc and manganese deficiencies in fruit trees

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    THE three elements copper, zinc and manganese are plant nutrients of the type often referred to as minor or trace elements. Although essential elements for plant growth, they are required in comparatively small quantities

    Research report : chemical thinning of apples

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    MANY progressive fruit growers have adopted spray thinning of apples, and have found that it pays well. More widespread adoption to reduce costs of production in the face of returns which show no tendency to rise, would benefit the apple industry. For this reason improved recommendations have been formulated, based on local research

    The place of lucerne in Western Australian agriculture

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    Lucerne, the world\u27s most important fodder legume, has never won largescale acceptance in West Australian farming, largely because of our success with productive subterranean clover pastures. But recent disease problems on sub. clover stands have led to greater interest in alternative species, especially lucerne, for higher rainfall areas. This article summarises our knowledge of lucerne establishment and management in W.A. and reviews current research aimed at achieving better results from lucerne
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