An field experiment was carried out to assess the effect of salicylic acid and potassium silicate on fruit quality and shelf life in mango (Mangifera indica L.) cv. Alphonso. The experiment consisted of nine treatments viz. T 1 (control), T 2 (potassium nitrate @ 1%), T 3 (salicylic acid @ 100 ppm), T 4 (salicylic acid @ 200 ppm), T 5 (potassium
The field experiment was carried out during Khairf 2022 at Crop Research Farm, Department of Agronomy, SHUATS, Prayagraj (U.P), to study the “effect of phosphorus and micronutrients on yield and economics of rice (Oryza sativa L.)”. The experiment was laid out in Randomized Block Design with ten treatments including control each replicated thrice. Significantly higher grain yield (6.20 t/ha) and straw yield (8.37 t/ha) were recorded in treatment 9 with application of Phosphorus 60 kg/ha + Zinc 5 kg/ha + Boron 2 kg/ha. Higher gross returns (1,34,890.00 INR/ha), net return (88,765,20 INR/ha) and benefit cost ratio (1.92) were obtained in the treatment of Phosphorus 60 kg/ha + Zinc 5 kg/ha + Boron 2 kg/ha.
Fixed plot field experiments were conducted at G B Pant University of Agriculture and Technology, Pantnagar, Uttarakhand during 2009–10 to 2012–13, to screen acidulates for better utilization of rock-phosphate in wheat (Triticum aestivum L.). Acidulates used were gypsum, SSP, FYM, pressmud (PM) and phosphorus solubilizing bacteria (PSB), in different ratio with rock phosphate. The experiment was conducted in RBD with eight treatments replicated thrice. Results revealed that RP acidulated with gypsum gave maximum grain yield (44.2 q/h) and straw yield (68.2 q/h) which were found significantly higher than the other treatments except pressmud acidulation. Plant height, spike length, number of fertile and sterile spikelet/spike and 1000 grain weight were found non-significant due to the treatments but maximum value was obtained with gypsum acidulation. Tillers and dry matter accumulations were also significantly higher in gypsum acidulated plots than the other treatments. Maximum soil available N was noticed in pressmud and PSB acidulated plot, which was found at par with FYM and pressmud treatments. Soil available P was found maximum in gypsum acidulated RP plots which was found at par with FYM+PSB acidulates RP and significantly higher than other treatments. In case of soil available K, SSP acidulated RP gave maximum value which was significantly higher than the other treatments. Nutrient uptake in gypsum acidulated RP was higher as compared to other treatments. Highest gross return (` 65678.3 h), net return (` 44504.5 h) and benefit:cost ratio (2.10) was also recorded in gypsum acidulates.
An experiment was conducted at farmer's field, near College of Horticulture, Anantharajupeta, Andhra Pradesh during the year 2017-2018 under Dr. Y.S.R Horticultural University, to assess the effect of potassium silicate and salicylic acid on fruit shelf life in mango (Mangifera indica L.) cv. Alphonso. The experiment consisted of nine treatments viz. T1 (control), T2 (potassium nitrate @ 1%), T3 (salicylic acid @ 100 ppm), T4 (salicylic acid @ 200 ppm), T5 (potassium silicate @ 0.1%), T6 (potassium silicate @ 0.2%), T7 (salicylic acid @ 100 ppm + potassium silicate @ 0.1%), T8 (salicylic acid @ 0.2% + potassium silicate @ 200 ppm), T9 (paclobutrazol @ 3 ml m -1 ). Seven years old mango orchard was selected for experiment and planted with spacing 7.5 m in square system. Results revealed that foliar application of salicylic acid @ 200 ppm + potassium silicate @ 0.2% (T8) found to enhance shelf life of fruits (15.10 days), marketable fruits percentage (88.94%), firmness (4.97 kg/cm 2 ) and reduce physiological loss in weight during storage period.
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