Effect of sulphur and zinc fertilization on productivity and economics of sesame (Sesamum indicum L.) in semi-arid conditions of Rajasthan

Abstract

A field experiment was conducted at Agronomy farm, S.K.N. College of Agriculture, Jobner, Jaipur (Rajasthan) during kharif season of 2018 to study the effect of sulphur and zinc fertilization on productivity and economics of sesame. The experiment comprising of four levels each of sulphur (0, 15, 30 and 45 kg/ha) and zinc (0, 10, 20 and 30 kg zinc sulphate/ha), thereby making 16 treatment combinations was laid out in factorial randomized block design and replicated thrice. Results showed that progressive increase in level of sulphur up to 30 kg/ha significantly increased the most of the yield attributing characters of sesame viz., number of capsules/plant, number of seeds/capsule and test weight over preceding levels. It also recorded significantly higher seed yield (712 kg/ha) of sesame over control and 15 kg/ha and found at par with 45 kg/ha. Result further showed that every increase in level of zinc sulphate up to 20 kg/ha by and large significantly improved most of the yield determining characters of sesame over lower levels. It also recorded significantly higher seed yield (725 kg/ha) over control and 10 kg/ha and found at par with 30 kg/ha. The results further showed that according to economic and marginal analysis, progressive increase in level of sulphur upto 30 kg S ha -1 and zinc 20 kg Zn ha -1 seemed highly practical due to higher net returns, benefit cost ratio (BCR) and optimum dose of sulphur and zinc for sesame crop were computed as 39.24 kg S ha -1 and 26.30 kg Zn ha -1 , respectively.

Response of Sesame to Different Weed Management Pratices in Maharashtra, India

“…two hand weeding and hoeing in sesame significantly gave higher seed yield than rest of the integrated weed management practices". Among the different herbicidal treatments, the lowest weed density of 37/m 2 and dry weight 126 g/m 2 were recorded by preemergence application of Pendimethalin 30 EC @ 0.50 kg a.i./ha + Hand weeding at 20 DAS followed by pre-emergence application of Pendimethalin 30 EC @ 0.50 kg a.i./ha (R) + Post-emergence application Quizalofop-ethyl 50 g a.i./ha at 20 DAS.These results are in conformity with the findings of Yadav S.S. [10]. The maximum weed index of 68.33 % was recorded in weedy check plots (T 1 ) which gradually reduced due to the different herbicidal treatments and became minimum (16.33%) in T 6 [Pendimethalin 30 EC (Pre-emergence) @ 0.50 kg a.i./ha + Hand weeding at 20 DAS] followed by 20.67 % in T 8 [Pendimethalin 30 EC (Preemergence) @ 0.50 kg a.i./ha + Sodium Acifluorfen 16.5% + Clodinafop-Propargyl 8% EC (premix) @ 100 g a.i/ha at 20 DAS].…”

Effect of NPS and Zinc Fertilizer Rates on Growth and Yield of Onion (Allium cepa L.) at Shewa Robit, North Shewa, Ethiopia

“…Consequently, this led to an elevated photosynthetic rate, facilitating greater production and translocation of photo assimilates to the onion bulbs. Yadav et al [48] observed a similar phenomenon, where a balanced nutrient application promoted vegetative growth and chlorophyll synthesis, ultimately enhancing assimilate production and bulb yield in onions. Similarly, Assefa et al [38] found that applying NPS fertilizer at a rate of 130 : 20 : 21 and Zn at 15 kg/ha resulted in the highest bulb yield (25.38 t/ha), while the lowest yield (9.81 t/ha) occurred with 0 : 0:0 kg/ha NPS and 0 kg/ha Zn.…”

Effect of Micronutrients and Sulphur on Growth and Yield of Sesame

“…The synergistic effect of sulphur application in increasing productivity of sesame, (Chanda 2003). The sulphur, zinc and boron combinedly results in nutrient balance, important in photosynthesis process which directly bearing on plant growth and development [24]. The application of micronutrients cause improvement in soil-physical chemical properties and nutrient availability to crop during vegetative growth, (Sankaran 2001).…”