
doi: 10.1007/bf01666296
Leaf analyses have indicated that the dieback investigated was due to boron deficiency and this has been proved by field experiments. Incidence of boron deficiency is tentatively related to the weathered condition of the soils on which it occurs and a climatic regime which may be alternately too wet and too dry for optimum availability of soil boron. The best means of correcting the deficiency appears to be the application of a small amount of borax — 15 pounds per acre — to the soil towards the end of the rainy season.
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