とうもろこしの生育ならびに体内成分の推移に関する研究 : 第4報 N, P, K含有率および含有量の推移について

概要

論文の詳細を見る
The percentages and accumulations of N, P and K in the various parts of corn plants at different levels of phosphorus fertilizer application were traced throughout the growing season. The results are as follows. 1. The percentages of N, P and K in all parts of plants, generally, decreased with time later during the growing season. 2. The percentages of total N was the highest in the leaves among the various parts of plants. 3. The percent P was higher in the leaves and grains than in the other parts of plants and a large proportion, more than 70%, of the total P in the plants was in the grain at maturity. 4. The percent K was higher in the leaf sheaths and stalks than in the other parts. At maturity the stalks contained about three-fifths of the total K in the plants. 5. The pattern of N, P and K accumulation in the plants varied some with each other : the most rapid rate of accumulation appeared in K, the next in N and then in P. 6. The amounts of P accumulation increased markedly with the heavy application of phosphorus fertilizer.
日本作物学会の論文
1971-02-10