Effect of Potassium and Sulphur on Yield Attributes, Yield and Quality of Summer Groundnut (Arachis hypogaea L.) under Middle Gujarat Condition

Abstract

Gujarat) during summer season of the year 2017 to study the role of potassium and sulphur on yield attributes, yield and quality of summer groundnut (Arachis hypogaea L.) under middle Gujarat conditions. The experimental soil was loamy sand in texture having pH of 7.80. The experiment included four levels of potassium viz. 0, 25, 50 and 75 kg K 2 O ha -1 and three levels of sulphur viz. 0, 20 and 40 kg S ha -1 . The experiment was laid out in a Randomized Block Design (Factorial) with four replications. Potassium showed significant effect on yield and yield attributes of groundnut. Application of potassium @ 75 kg K 2 O ha -1 produced significantly highest dry matter content at 45 DAS, no. of branches plant -1 , no. of pod plant -1 , shelling %, seed index, pod yield, haulm yield and protein content. Sulphur fertilizer also gave significant effect on yield and yield attributes of groundnut. Application of sulphur @ 40 kg S ha -1 produced the highest dry matter content at 45 DAS, no. of branches plant -1 , no. of pod plant -1 , shelling %, seed index, pod yield, haulm yield, oil content and protein content. Potassium in combination with sulphur showed significant effect on yield and yield attributes of groundnut. Combined application of potassium @ 75 kg ha -1 and sulphur @ 40 kg ha -1 resulted significantly the highest no. of branches plant -1 , no. of pod plant -1 , pod yield, haulm yield and shelling % of groundnut. On the other hand, in all the cases the lower response was found from the control treatment.

Effect of Different Levels of Potassium and Zinc on Growth, Yield and Economics of Summer Groundnut (Arachis hypogaea L.)

“…The significant and maximum number of nodules/plant observed with the application of potassium (50kg/ha) might be due to K is required for translocation of assimilates and involved in maintenance of turgor pressure of cells and increase the availability of metabolic energy for the synthesis of starch and protein. These results were in conformity with those of Patel et al [8]. Further, the higher number of nodules/plants observed with the application of zinc (15 kg/ha) might be due to its role in enzymes activities as they are essential constituents of N2 fixing enzymes complex "nitrogenase" which are responsible for increase in leghemoglobin which ultimately increase nodulation and N-fixation.…”

“…Although potassium is neither a component of any compound nor structurally bound in groundnut, it is necessary for the translocation of assimilates, involved in maintaining the water status of plants, particularly the turgor pressure of cells, and involved in the opening and closing of stomata, as well as increasing the availability of metabolic energy for the synthesis of starch and proteins. Moreover, it promoted peg formation, nodulation, the production of sugar and starch, as well as pod development and filling" [8]. "The balance of enzymatic, stomatal activity, the transportation of sugar and the production of proteins, photosynthesis, starch, and cell elongation are all regulated by potassium, which also plays a significant role in the synthesis of carbohydrates, photosynthesis, and starch" [9].…”

Response of soybean (Glycine max) to different sources and levels of sulphur application

“…Moreover, S application positively affects cell division, enlargement, and elongation, resulting in faster and uniform vegetative growth of the crop (Noman et al 2015). Patel et al (2018) also reported a higher pod yield of groundnut crops with S fertilization. The long-term experiment data revealed that exclusion of S (NPK-S) has resulted in lower biological yield than applying a recommended optimal dose of NPK (Gupta et al 2019).…”

Balanced Fertilization for Sustainable Yield and Quality of Peanut (Arachis hypogaea L.) in Sandy Soil of Central Vietnam

“…Fertilizer application in combination increased biomass, pod and seed yield of peanut. This increase in peanut is evident that potassium fertilization application at the rate of 110 kg of K 2 O ha -1 increased nutritional status, improving grain production of peanut crop in rotation with sugarcane (Patel et al, 2018).…”