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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(12): 2391-2403
DOI: https://doi.org/10.20546/ijcmas.2020.912.284


Studies on Impact of Organic, Inorganic and Integrated Source of
Nutrients on Growth, Yield, Quality and Nutrient Uptake of Okra (Abelmoschus esculentus) and Soil Microbiological Properties
K. Badhan, N. Datt* and R. P. Sharma
Department of Soil Science, Chaudhary Sarvan Kumar Himachal Pradesh Krishi Vishvavidyalaya, Palampur, Himachal Pradesh, India
*Corresponding author
Abstract:

A field experiment was conducted with 11 treatments and three replications in randomized block design on Okra in an acid Alfisol during the year 2005 at the research farm of Department of Soil Science, Chaudhary Sarvan Kumar Himachal Pradesh Krishi Vishvavidyalaya, Palampur. The maximum plant height was recorded with the application of farmyard manure in combination with 100 percent nitrogen, phosphorus and potassium ( 100 % NPK i.e. 75 N, 50 P2O5 and 50 kg ha-1 K2O) followed by 100 percent NPK + vermicompost @10 t ha-1 which was 45.8 and 22.8 percent higher than 100 percent NPK application alone. However yield, nutrient uptake and mineral contents were maximum with vermicompost @10 t ha-1+100% NPK and statistically at par with biocompost at same rate+100% NPK. There was 65 and 46.9; 245 and 235 percent increase in fruit yield with the application of vermicompost in combination with 100% NPK in comparison to 100% NPK alone and control treatments, respectively. Almost similar results were obtained with biocompost @10 t ha-1 along with 100% NPK application. Each biocompost and vermicompost @ 5 t along with 100%NPK gave equivalent yield to 100% NPK+10 t FYM ha-1. It is evident that the quantity of farmyard manure can be reduced to half with the use of either vermicompost or biocompost. Likewise yield, maximum mineral content viz., P, K, Ca, Mg and Fe were found in 100% NPK+10 t ha-1 vermicompost which were at par with 100% NPK + biocompost @10 t ha-1 and 100% NPK+ FYM 10 t ha-1 and minimum in the control. The mineral contents were significantly increased with the combined use of biocompost/ vermicompost with 100% NPK than the alone application of either biocompost/ vermicompost or 100% NPK. The increase in nitrogen uptake both in fruit and stalk in 100% NPK+10 t ha-1 vermicompost was 67.7 and 48.4 percent, respectively over 100% NPK application alone. Nutrient efficiency ratio and physiological efficiencies of N, P and K were higher in the treatments having the alone application of bio/vermicompost and trends in efficiency ratio and physiological efficiencies of N, P and K were found just reverse to the trends of N, P and K uptakes. Dehydrogenase activity was found maximum with the treatment bio-compost @10 t ha-1 alone which decreased with the application of fertilizers, vermicompost, FYM and their combination with 100% NPK. The organic carbon, total nitrogen were significantly higher in treatments of biocompost alone application in comparison to control followed by biocompost treatments applied in combination with 100% NPK. Organic carbon, total nitrogen and total phosphorus and microbial population and biomass, dehydrogenase activity was significantly higher in bio-compost in comparison to vermicompost with same level of application and in combination with100% NPK. Being maximum in alone biocompost application, decrease in bacterial population was noticed to the tune of 21 percent in the treatments-vermicompost @10 t with the inorganic fertilizer and in sole application of NPK fertilizer over vermicompost application alone. Maximum population of actinomycetes was in the treatments where vermicompost and biocompost was applied alone. All the soil microbiological properties were significantly higher in biocompost than vermicompost application except the actinomycetes population where it was higher in vermicompost. Microbial population showed significant and positive correlation with the organic carbon, biomass carbon, total nitrogen and total phosphorus of the rhizosheric soil. Dehydrogenase activity has positive and significant correlation with microbial population but it was not significant with total phosphorus and total nitrogen. Dehydrogenase activity did show positive and significant correlation with microbial biomass carbon.


Keywords: Organic, Inorganic and integrated use, Okra, Yield, Quality parameters, Nutrient efficiency ratios, Soil microbiological properties, Correlation
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How to cite this article:

Badhan, N. K., N. Datt and Sharma, R. P. 2020. Studies on Impact of Organic, Inorganic and Integrated Source of Nutrients on Growth, Yield, Quality and Nutrient Uptake of Okra (Abelmoschus esculentus) and Soil Microbiological Properties.Int.J.Curr.Microbiol.App.Sci. 9(12): 2391-2403. doi: https://doi.org/10.20546/ijcmas.2020.912.284