Papers by K.V. Ramana Murthy
A field experiment was conducted on “Integrated Nutrient Management in Groundnut (Arachis hypogae... more A field experiment was conducted on “Integrated Nutrient Management in Groundnut (Arachis hypogaea L.)Maize (Zea mays L.) Cropping System” during two consecutive years (2015-2016 and 2016-2017) at the Agricultural Research Station, Vizianagaram of Acharya N.G. Ranga Agricultural University (ANGRAU), in the North Coastal Agro-Climatic Zone of Andhra Pradesh, to study the effect of integrated nitrogen management practices involving biofertilizer inoculations on growth and yield of kharif groundnut and succeeding rabi maize. Among all the RDF along with bio-fertilizers application, maximum values for vegetative parameters were recorded with the application of 150% RDF + FYM 5 t ha and the higher pod yield and yield attributes were recorded with 125% RDF + FYM 5 t ha which was, however, comparable with with100% RDF + FYM 5 t ha. The research results of succeeding maize revealed that, growth parameters, yield attributes, yield and economic returns were significantly influenced by the tre...
International Journal of Current Microbiology and Applied Sciences, 2017
International Journal of Current Microbiology and Applied Sciences, 2018
Journal of Environmental Biology, 2020
Aim: The objective of this research was to find a suitable variety and amount of nitrogen to work... more Aim: The objective of this research was to find a suitable variety and amount of nitrogen to work out their best combination for accomplishing higher productivity of Sorghum under rice fallow environment in Coastal Zone of South India. Methodology: An experimental trial was carried out with four sorghum genotypes viz., V1- CSH 15R, V2- CSH 16, V3- CSH 25 and V4- MLSH 296 and four nitrogen doses viz., N1: 0 kg N ha-1, N2: 80 kg N ha-1, N3: 100 kg N ha-1 and N4: 120 kg N ha-1.The investigation was outlined in split plot design with three replications. ?? Results: Rice fallow sorghum genotype CSH 25 and supplementation of 120 kg N ha-1 had outstandingly recorded the highest grain weight, higher grain yield and physiological recovery of nitrogen among other genotypes. Nonetheless, in contrast to this, fodder yield was highest with hybrid CSH 15R at 120 kg ha-1, but apparent recovery of nitrogen (%) and soil harvest nitrogen had recorded highest in CSH 16 at same level of nitrogen (120 k...
Current Agriculture Research Journal, 2020
A field study was carried for two consecutive kharif and rabi seasons of 2013-14 and 2014-15 on f... more A field study was carried for two consecutive kharif and rabi seasons of 2013-14 and 2014-15 on farmer’s fields across 15 locations each year during kharif and 9 locations each year - during rabi in Srikakulam district, Andhra Pradesh. We tested five crop establishment methods viz., dry direct sowing using fertilizer-cum seed drill under irrigated conditions, drum seeding, systems of rice intensification (SRI), mechanized transplanting using rice 8 row yanmar transplanter, and manual transplanting. Study findings revealed that transplanting with rice planter emerged as high yielding method of establishment where the grain yield was higher by 9.21% over manual transplanting. Dry direct sowing was found to be highly profitable method of rice establishment by recording higher net returns Rs. 12596/ha compared to manual planting. Dry direct sowing and SRI proved as water productive rice establishment methods which took lesser water by 22.45% and 18.78% compared to manual transplanting d...
Indian Journal of Agronomy, 2007
Field experiments were conducted at Naira, Andhra Pradesh for two consecutive rainy (kharif) seas... more Field experiments were conducted at Naira, Andhra Pradesh for two consecutive rainy (kharif) seasons of 2005 and 2006 to study the efficacy of different herbicides applied alone and their integration with star weeding in rainfed upland rice (Oryza sativa L.). The reduction in grain yield due to uncontrolled weed growth was 62.6% compared with weed-free check. Pre-emergence application of metsulfuron methyl 10% + chlorimuron ethyl 10% @ 6.0 g/ha resulted in better weed control but the improved efficacy could not be translated to better yield due to its phytotoxicity on rice. Among the herbicide treatments, pre-emergence application of oxadiargyl @ 80 g/ha + working with star weeder at 40 days after sowing, followed by pre-emergence application of oxadiargyl @ 80 g/ha alone resulted in improved weed-control efficiency, better yield attributes, and higher grain and straw yields, besides fetching higher net returns and benefit: cost ratio compared with weed-free check.
A field experiment was conducted at Agricultural College Farm, Naira on sandy clay loam soil duri... more A field experiment was conducted at Agricultural College Farm, Naira on sandy clay loam soil during pre kharif and kharif 2012-2013. The experiment was laid out in randomized block design, with four replications and seven cropping systems. Sunnhemp, greengram, blackgram, sesame, clusterbean and bhendi during pre kharif and rice during kharif were tried. Incorporation of different pre kharif crop residues significantly altered the growth and development of kharif rice. The results indicated that crop residue incorporation of sunnhemp recorded significantly higher growth parameters, yield attributes, yield (6501 kg ha -1 ) and nutrient uptake of kharif rice while lowest was recorded with that of fallow (4125 kg ha -1 ). Economics of rice was also observed with sunnhemp crop residue
Indian Journal of Weed science, 2012
A field experiment was conducted to study the effect of irrigation and weed management practices ... more A field experiment was conducted to study the effect of irrigation and weed management practices of rice under aerobic culture, laid in split plot design. Among the irrigation schedules, IW/CPE ratio of 1.2 produced significantly higher stature of yield attributes, viz., total number of panicles/m 2 , total number of grains/ panicle and number of filled grains/panicle and grain and straw yield were distinctly superior to other two irrigation schedules. At all the stages, with exception at 20 DAS, the lowest of density of weeds and their corresponding dry weight was recorded with hand weeding at 20 and 40 DAS, which were comparable with oxadiargyl 0.07 kg/ha supplemented with HW at 40 DAS for density of grasses, triasulfuron 0.006 kg/ha supplemented with HW at 40 DAS for density of broad leaved weeds and bensulfuron methyl 0.06 kg/ha supplemented with HW at 40 DAS for density of sedges. The highest density of these entire weed categories was recorded with unweeded check. The study re...
Journal of Progressive Agriculture, 2014
A field study was conducted during pre kharif, kharif and rabi 2012–13 on sandy clay loam soils o... more A field study was conducted during pre kharif, kharif and rabi 2012–13 on sandy clay loam soils of Agricultural College Farm, Naira to find out the effect of preceding crop on the performance of succeeding rice fallow blackgram. The experiment was laid out in randomized block design with four replications and seven treatments. Significant differences were noticed with pre kharif crops on growth parameters, yield attributes and yield of rice fallow blackgram. Significantly superior dry matter (1455 kg ha−1), pods plant−1 (7.5), seeds pod−1(5.2), test weight (4.87 g−1), seed yield (382 kg ha−1) and haulm yield (743 kg ha−1) of rice fallow blackgram was observed with incorporation of sunnhemp followed by greengram while fallow registered the lowest for all these parameters. Sunnhemp-rice-rice fallow blackgram has also registered the highest returns per rupee invested (2.52) and hence was suggested for North Coastal Zone of Andhra Pradesh.
IOSR Journal of Agriculture and Veterinary Science, 2013
In a study conducted during 2007 and 2008 on irrigation and weed management effect on aerobic ric... more In a study conducted during 2007 and 2008 on irrigation and weed management effect on aerobic rice, scheduling the irrigation with IW/CPE of 1.2 produced significantly higher stature of yield attributes viz., total number of panicles m-2 , total number of grains and number of filled grains and grain (4702 and 4547 kg ha-1) and straw yield and were distinctly superior to IW/CPE of 0.8 and 1.0. The nutrient uptake (nitrogen, phosphorus and potassium) by crop was also significantly highest with IW/CPE of 1.2.Weed management practices exerted significant influence on yield attributes, yield (5761 and 5595 kg ha-1), nutrient uptake by crop and all of them were at their highest with hand weeding at 20 and 40 days, which were comparable with oxadiargyl 0.07 kg ai ha-1 supplemented with hand weeding at 40 days. All the yield attributes and yield of rice were the lowest with unweeded check. Nutrient uptake by weeds was significantly highest with IW/CPE of 1.0 and among weed management practices with hand weeding at 20 and 40 days. Highest returns and benefit-cost ratio were recorded with the irrigations scheduled at IW/CPE ratio of 1.2 and with pre emergence application of oxadiargyl 0.07 kg ai ha-1 supplemented with hand weeding at 40 days.
Journal of Pharmacognosy and Phytochemistry, 2020
Sugarcane productivity at the farm level has been stagnant in India, at around 54-72 t ha −1. One... more Sugarcane productivity at the farm level has been stagnant in India, at around 54-72 t ha −1. One of the main reasons for this low productivity is the yield gap between ratoon and plant cane yield. To improve the ratoon yield and bridge the yield gap, a field experiment was conducted for two seasons with different tillage systems and trash management practices. The experiment was laid with two treatments vise., T1-Improved practices (Chisel plough at 1m interval fb MB plough, Lime water dipping, mulching and spraying of urea and MOP in post monsoon season, Water harvesting through farm pond and providing supplemental irrigation) and T2-Farmers practice. In improved rainfed sugarcane method (Chisel plough at 1m interval followed by MB plough, Lime water dipping of setts before planting, mulching and spraying of urea and MOP in post monsoon season, Water harvesting through farm pond and providing supplemental irrigation), the germination count at 35 th DAP(Days after Planting), shoot population recorded at 60DAP, 90DAP and 120DAP, moisture content of the soil at 60DAP, 120DAP, 240DAP and Harvest were found significantly higher in improved practice when compared to farmers practice. The NMC (64386 No. of Millable canes ha-1), Length of the cane (224.5cm), Girth of the cane (2.3cm) were recorded significantly 13.80, 7.11 and 4.56% higher in improved practice in comparison with farmers practice. Root volume (171 cc), Root weight (51.36gm) were also found significant in improved method of cultivation. Cane yield (56.43t ha-1) found significant in improved rainfed sugarcane method and 11.83% increase in yield was observed when comparison to farmer practice (50.46 t ha-1). The results suggest that the tillage with adoption of trash management practices assisted in improving the profitability by way of higher sugarcane ratoon productivity.
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Papers by K.V. Ramana Murthy