The estimation of absorbed nitrogen using increased leaf number in drip-fertigated spring cucumber
2007
Sato, T.(Kanagawa-ken. Agricultural Technology Center, Hiratsuka (Japan)) | Matsuura, K. | Narimatsu, J. | Yoneyama, Y.
Destructive analysis was used to estimate the half-monthly nitrogen content and related growth parameters of drip-fertigated spring cucumber. Three fertilizing treatments were compared. The amount of nitrogen applied half-monthly varied, independently, but the total amount was same. There was little difference in the growth and yield of cucumber among nitrogen application patterns, which suggested that soil had a buffering capacity on cucumber yield even if the amount of nitrogen fertilizer changed. Destructive analysis including three all treatments found a significant correlation between nitrogen content of cucumber plant and the number of increased leaves (absorbed nitrogen (g/square m/14 days) = increased leaves (no./square m/14 days) x 0.0441+2.189). This relationship will lead to reduce nitrogen application through counting of leaves twice a month.
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