K. Ehara

Studies on Nitrate Nitrogen Contents in Forage Crops : I. Effects of Varying Levels of Nitrogen on Nitrate Nitrogen Contents in Some Forage Crops

Yoshio Yamada, R. Umetsu, K. Ehara, 1966 .

Studies on Nitrate Nitrogen Contents in Forage Crops. : 2. Effect of four levels of light intensity and two levels of nitrogen on yields and nitrate natrogen contents of Bahiagrass (Paspalum notatum FLUGGE) and Bermudagrass (Cynodon dactylon PERS.)

Yoshio Yamada, R. Umetsu, K. Ehara, 1968 .

Effect of Atmospheric Humidity and Soil Moisture on the Translocation of Sucrose-C14 in the Sweet Potato Plant.

K. Ehara, Hakabu Sekioka, 1962 .