葉分析に供試せる小麦圃場肥料 3 要素試験成績

概要

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For the purpose of diagnosing by means of leaf analysis how fertilizer three elements effect growth and yield of wheat crops, field experiment was carried out in 1952-55 at Hyogo Agr. Univ. farm, Hyogo Pref. This report was concerned with the relation of growth and yield to the fertilizer treatments and years. N effect was most remarkable both on the paddy back crop field and on the upland field, and the yields of plots applied N were three times more than non N plots. K effect was next to N on the paddy field, while on the upland field P effect was next, but on the both fields each effect was significant only in the case of using N together with each. On the paddy field P effect was least, and on the uplant field K effect was also least, but it become significant year after year. This contradictory fact was probably due to the difference of field soils; the former field is somewhat degraded paddy one, and the latter is extremely P deficient upland soil. It was observed that there were high significant differences among treatments (N, P and NP), years, Y×T, and Blocks×T. Details of growth and yield results were shown in the tables.
神戸大学の論文