Studies on Nutrient Deficiencies in Tea Plant (Part 2)

Effect of Nutrient Deficiencies on Mineral Contents in Tea Leaf

Abstract

The effect of nitrogen, phosphorus, potassium and magnesium deficiencies on the mineral content in the tea plant was investigated by sand culture method.
The results were summarized as follows.
1. The same deficiency symptons in every nutrient were observed as reported in the previous paper by water culture.
2. The mineral content not supplied in the culture media decreased in the tea plant, and this deficiency influenced upon the uptake of other mineral nutrient. This tendency wasremarkable in the N-deficient plot, in which some mineral nutrients other than nitrogen were abnormally accumulated in the leaves at the beginning of the experiment, but after, 3 years at the end of it these minerals remarkably decreased.