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Effect of Manganese Supply on the Growth of Tea Plant

1966; Japan Epidemiological Association; Volume: 1966; Issue: 26 Linguagem: Inglês

10.5979/cha.1966.26_43

1883-941X

Sôgo KAWAI, Hirotsugu Takayanagi,

Plant Physiology and Cultivation Studies

The effect of manganese supply on the growth of tea plant was investigated by the pot experiments with the red-yellow soils of Makinohara having various pH values adjusted by sulphur or calcium carbonate.The results were summarized as follows:1. The tea plant in plot whose soils were adjusted to 3 levels of pH and manganese was die back with the lapse of one month from planting.The growth of tea plant in plot which was added manganese only to the. soil was comparatively superior and that in plot of original without soil calcium carbonate and manganese was relatively inferior.2. Among the chemical components of tea leaves, a difference of manganese content due to the treatment was found, that is, the manganese content of tea leaves in plot added calcium carbonate and manganese to the soil was little and that in plot added manganese only was remarkably as much as 0.3-0.5%.3. The contents of exchangeable calcium and manganese in the soil of plot were examined, and there existed a close reverse correlation between these components.