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Effect of Flight Activity of Stem Weevils (Ceutorhynchus napi, C. pallidactylus) and Application Time on Insecticide Efficacy and Yield of Winter Oilseed Rape
cabbage stem weevil oilseed rape stem weevi
2015/3/11
During 2010–2012, we monitored flight activity of male and female stem weevils (Ceutorhynchus napi, C. pallidactylus) using yellow water traps, the effectiveness of various application dates for the i...
Effects of Nitrogen Application Time in Spring on Absorption by Satsuma Mandarin Trees
15N-tracer method translocation utilization rate
2009/7/6
Effects of application time in spring on nitrogen absorption by satsuma mandarin (Citrus unshiu Marc. cv. ‘Nankan No. 20’) were investigated. Field and pot tests were performed using an 15N-tracer met...