Abstract: The most important nutrient for rice (Oryza sativa L.) production is nitrogen. But it lost from soil in different process. Proper nitrogen (N) management of high yielding rice varieties is crucial for obtaining their potential yield benefit. The area of the study is characterized by long rainy season which predispose for leaching of N to the ground water. A randomized block design with three replications was used to assess the response of upland rice Varity (Nerica 4) to N application intervals. N was investigated at six different levels or points in time. The N timing were: Applying all recommended N rate at planting, applying 50% of the N at planting and the other 50% at mid tillering, applying 50% of the N at planting and the other 50% at panicle initiation, applying 25% of the N at planting and 75% at mid tillering, applying 75% of the N at planting and 25% at panicle initiation, applying 25% of the N at planting, 25% at mid tillering and 25% at panicle initiation. The study shows that applying 50% of N at planting and the other 50% at tillering is best N management practice for the area to maximize rice yield avoiding the excess use of N fertilizer.Abstract: The most important nutrient for rice (Oryza sativa L.) production is nitrogen. But it lost from soil in different process. Proper nitrogen (N) management of high yielding rice varieties is crucial for obtaining their potential yield benefit. The area of the study is characterized by long rainy season which predispose for leaching of N to the ground...Show More
Abstract: In order to assess farmers' selection criteria for maize varieties for future maize improvement, participatory variety selection (PVS) trial was carried out in the Homosha district of Western Ethiopia in 2020. The trial was designed to select well performed of improved maize (Zea mayz L.) varieties. The activity was conducted at kubur 50 Homosha District with plot size of 10m*10m, which included three improved varieties with check. The outcomes showed that in certain instances, farmers' choices and the researchers' choice were similar. Farmers have, nonetheless, generally demonstrated their unique method of choosing a variety for their locales. These characteristics include Grain Yield, Maturity, Stalk and Root Lodging Tolerant, Ear aspect, Striaga Weed Tolerant, Number of ears per plant, bare tip problem, Disease Tolerant or Resistance, Plant and ear height. Therefore, it is crucial to consider farmers' preferences while choosing varieties. Therefore, the BH-549 and BH-546 are suggested for the study region based on scientifically determined features, farmers' preferences, and the site's agroecologies. The responsible body should pay close attention to the variety BH-549 since it has a high yielder for the study region. Preferences identified in the participatory activities could inform further development of maize breeding strategies for Western regions of Ethiopia.Abstract: In order to assess farmers' selection criteria for maize varieties for future maize improvement, participatory variety selection (PVS) trial was carried out in the Homosha district of Western Ethiopia in 2020. The trial was designed to select well performed of improved maize (Zea mayz L.) varieties. The activity was conducted at kubur 50 Homosha Di...Show More
