Orchard soil management trials. 1. Effect of a weed-free or straw mulched strip on the growth and yield of young fruit trees

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Abstract
The effects of keeping a strip along the tree row bare with herbicide sprays or mulched with weed-free straw were compared with either permanent pasture or cultivation. Peach trees growing in the straw mulched strips from their second year onwards grew bigger, made more growth, and produced twice as many fruit of larger size in their fourth and fifth seasons. Apple trees growing in a 1 1/2 metre wide mulched strip also made more total growth and yielded twice the weight of fruit in their fifth and sixth seasons than trees growing under cultivation. Mean fruit size of the apples from the mulched trees was larger, and the mulched apple trees carried more blossoms following a heavy crop than did the cultivated trees. Growth and fruit bearing of the peach and apple trees in the herbicide treated plots was intermediate between the control and mulch treatments.

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