Fundamental study on the culture of Japanese lawn grasses varieties. 2

On the influences of sunbeam and the effects of three nutrient elements on the growth of Japanese lawn grasses varieties

Abstract

The experiments were carried out to know the influences of sunbeam deficiency and the effects of three nutrient elements on the growth of Japanese lawn grasses varieties (No-shiba, Chu-shiba, Koraishiba I, Korai-shiba I, Korai-shibal II, Kara-shiba, Chosen-shiba, Hime-shiba, Meyer Zoysia, Emerald Zoysia, Zoysia matrella (native to Philippine) and Z. tenuifolia (native to Guam I.)), and the following results were obtained.
(1) Japanese lawn grasses varieties were weak to the sunbeam deficiency. Under the deficiency, their weight, and the numbers of stolons, nodes and leaves were decreased. While, they overgrew at first sight, namely, length of leaves was increased, and, in case of the moderate deficiency, lenght of stolons was increased.
(2) In case of want of nitrogen element, the growth of all varieties was worst, and, when phosphorus element lacked, it was somewhat better than the former. In case of want of potassium their growth was comparatively good. When three elements were given, the growth was best.