The Effect of N and P Fertilizers on Yield and Yield Components of Sesame (Sesamum indicum L.) in Low-Fertile Soil of North-Western Ethiopia

Abstract

The impact of fertilizer of N and P on the yield of sesame in north-western Ethiopia was investigated. Field experiments were conducted in 2010 and 2011. Six levels of urea and six levels of di-ammonium phosphate were applied using a factorial completely randomized block design. Application of N and P increased the plant height, the number of capsules plant−1, and the yield ha−1. The number of days to flower decreased with increasing rates of nitrogen. The number of days to maturity was largest (91 days) at a rate of 23 kg N ha−1. Applying 92 kg N ha−1 resulted in a yield of 917.8 kg ha−1 and a plant height of 104 cm. An application of 92 kg P ha−1 with 36 Kg N ha−1 gave a yield of 908 kg ha−1 and a plant height of 103.4 cm. The interaction between N and P significantly affected the number of days to flower, plant height, the number of capsules plant−1, and yield ha−1. Applying 128 kg N ha−1 and 92 kg P ha−1 gave the biggest yield (1043 kg ha−1). However, application of 41 kg N ha−1 and 46 kg P ha−1 gave the largest marginal rate of return.

Effect of different fertilizers and sowing date on growth, yield, and yield components of Sesame (Sesame indicum L.)

“…The highest average mean values were (2.40 and 2.07) t ha -1 recorded with (NPK +Magnesium and Microelements) contrary to control that recorded lowest value (2.10 and 1.58 )t ha -1 in both locations respectively Grdarasha and Ainkawa. These results were consistent with (Hadif, 2012;Haruna et al, 2012;Amare et al, 2019 andThakur et al, 1998). Greater average mean of grain yield was recorded by planting sesame on the 20 th of May (2.40 and 2.16) t ha -1 in both locations respectively Grdarasha and Ainkawa.…”

Effects of Nitrogen and Phosphorus Addition on Agronomic Characters, Photosynthetic Performance and Anatomical Structure of Alfalfa in Northern Xinjiang, China

“…Alfalfa (Medicago sativa L.) is a perennial leguminous plant with high yield, rich nutrition and strong adaptability [1,2]. Soil available nitrogen (AN) and available phosphorus (AP) deficiency are some of the most important factors limiting the productivity of alfalfa [3]. Alfalfa growth requires a large amount of N; the N fixation of rhizobia converts molecular N in the air into ammonium N that can be absorbed and utilized by alfalfa [4].…”

Initial Growth of Sesame under Nutrient Omission

“…Research on the effects of nitrogen and phosphorus on sesame plant height on vertisol observes that nitrogen and phosphorus influence the growth parameters of the crop; moreover, the interaction of the nutrients significantly increases plant height concerning the control treatment, without the application of nitrogen and phosphate fertilizer [24].…”