Hiroyasu Machida

Studies on the Simplification of Weeding Operation

Kinzo Kawatei, Tomizo Kato, Hiroyasu Machida, 1966 .

Relationship between Date of Anthesis and Grain Weight on the Panicle of Rice

T. Nakamoto, A. Matsuzaki, Hiroyasu Machida, 1988 .

Distribution of Chlorophyll Content in Leaf Blade of Rice Plant

A. Matsuzaki, Kosei Tsunoda, Kunio Kariya, 1982 .

Studies on the Growth Control and the Nutritional Diagnosis in Rice Plants : I. The nutritional diagnosis based on the leaf color and the estimation of the number of spikelets per unit area

A. Matsuzaki, Kosei Tsunoda, Kunio Kariya, 1980 .

Studies on the Growth Control and the Nutritional Diagnosis in Rice Plants : III. Growth diagnosis at the stage of spikelet initiation for nitrogen top dressing

A. Matsuzaki, Y. Nishikawa, Kosei Tsunoda, 1982 .