Influence of Sulphur and Zinc on Growth and Yield of Cowpea (Vigna unguiculata L.)

Abstract

Aim: To study the retaliation performances of Sulphur and zinc on growth, yield and yield attributes of cowpea (Vigna unguiculate L.)
 Place and Duration of Study A field experiment was carried out during kharif season of 2021 at Crop Research Farm, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj Uttar Pradesh, India. 
 Methodology: The Experiment was laid out in Randomized Block Design with Ten treatments which were replicated thrice. with treatment combination of (T1 to T10) T1 20 kg/ha S + 10 kg/ha Zn, T2. 20 kg/ha S + 15 kg/ha Zn, T3. 20 kg/ha S + 20 kg/ ha Zn, T4. 30 kg/ha S + 10 kg/ha Zn, T5. 30 kg/ha S + 15 kg/ha Zn, T6. 30 kg/ha S + 20 kg/ha Zn, T7. 45 kg/ha S + 10 kg/ha Zn, T8. 45 kg/ha S + 15 kg/ha Zn, T9. 45 kg/ha S + 20 kg/ha Zn, T10 Control were used.
 Result: Among various sulphur and zinc combinations T9 treatment recorded maximum
 Plant height (75.64 cm), plant dry weight (67.90g/plant), number of branches per plant (9.66), harvest index (47.93 %), gain yield (13.67 q/ha), straw yield (15.26 q/ha).
 Conclusion: It was determined that the application of Sulphur – 45 kg/ha + Zinc – 20 kg/ha resulted in a higher grain yield (13.67 q/ha), which was significantly superior to the other treatments.

Influence of Sulphur and Zinc on Growth, Yield Attributes and Economics of Cowpea (Vigna unguiculata L.)

“…The increased gross returns, net returns and benefit: cost ratio was due to increased seed and stover yield under foliar application of Sulphur 4% with zinc at 1.5%. The findings are in close conformity with those of Durugude et al [18][19][20][21][22][23][24].…”

Influence of Sulphur and Foliar Application of Molybdenum on Growth and Yield of Summer Cowpea (Vigna unguiculata L.)

“…The significant and higher plant height was with application of Sulphur (30kg/ha) as play important role in several physiological and biochemical processes which are of vital importance for growth and development of plant. Similar findings also reported by Yadav et al [2]. Further, higher plant height was found that molybdenum (15 ppm) increases availability of nitrogen which helps in process of nitrogen assimilation.…”

“…In India pulses are grown nearly in 25.43 m ha with an annual production of 17.20 m t and a median productivity of 679 kg/ha. The per capita availability of pulses in India is 35.5 g/day as against the minimum requirement of 70 g/day" [2]. "Cowpea grown across the world on an area 14.5 m ha of land planted each year and the total annual production is 6.2 m t. In India during 2020-21 cowpea is grown in about 13.3 m ha with an annual production of 8.06 m t and productivity of 596 kg/ha.…”

“…"Sulphur is fourth major nutrient next to N, P and K and an essential element for plant growth particularly for legumes crops which play an important role in plant metabolism system, S containing amino acids (cystine, cysteine and methionine) and promotes nodulation in legumes. It helps in chlorophyll formation and encourages vegetative plant growth" [2]. "It required for the synthesis of chlorophyll and promote nodule formation sulphur absence in soil are gradually increasing with reduction of sulphur proportion in atmosphere and the descending usage of ammonium sulphate containing sulphur, but the accending usages of urea from nitrogenous fertilizers without sulphur.…”

Influence of Phosphorus and Zinc Application on Leaf Area Ratio (LAR) of Cowpea (Vigna unguiculata (L.) Walp) Varieties in the Scrub Savanna of Nigeria

“…Application of Zn at 0 kgha -1 recorded higher LAR than 2.5 and 5 kgha -1 with an exception of the combined effect of the two years. This finding correlated with the work of Akay (2011) and Bozoglu et al (2007), who reported during their different studies on effect of zinc fertilization on chickpea varieties, another legume, that 0 kgha -1 induced higher LAR than higher doses (Yadav et al, 2022). The finding that the control (Zn 0 kgha -1 ) had higher LAR than the higher levels of 2.5 and 5 kgha -1 application in this work, is not in consistent with what zinc had been known to induce on growth parameters.…”