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Sharma, M. K.
- Effect of Plant Growth Regulators on Growth and Yield of Nagpur Mandarin (citrus Reticulata Blanco.)
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Authors
Affiliations
1 Department of Fruit Science, College of Horticulture and Forestry,Jhalawar Rajastan, IN
2 Department of Fruit Science, College of Horticulture and Forestry, Jhalawar Rajastan, IN
3 Department of Soil Science, College of Horticulture and Forestry, Jhalawar Rajastan, IN
4 Department of Fruit Science, College of Horticulture and Forestry,Jhalawar Rajastan
1 Department of Fruit Science, College of Horticulture and Forestry,Jhalawar Rajastan, IN
2 Department of Fruit Science, College of Horticulture and Forestry, Jhalawar Rajastan, IN
3 Department of Soil Science, College of Horticulture and Forestry, Jhalawar Rajastan, IN
4 Department of Fruit Science, College of Horticulture and Forestry,Jhalawar Rajastan
Source
The Asian Journal of Horticulture, Vol 8, No 2 (2013), Pagination: 746-750Abstract
An investigation was carried out at Fruit Research Farm, Department of Fruit Science at College of Horticulture and Forestry, Jhalawar during July, 2012 to April, 2013 to study the individual effect of plant growth regulators on growth and yield of Nagpur mandarin (Citrus reticulata Blanco.). The results revealed that application of GA3@ 100 ppm showed superior results with respect per cent increase in plant spread (20.59%) and crown volume (38.42%) over control on 150 days after treatment. The physical characters of fruit like maximum increase in diameter (horizontal and vertical), weight, volume and number of sacs per fruit, minimum days taken to first harvesting and complete harvesting was recorded with the spray of 100 ppm GA3, which was closely followed by 30 ppm 2,4-D. The minimum peel thickness, number of seeds per fruit and average seeds weight per fruit was recorded with 30 ppm 2,4-D treatment. The maximum number of fruit per tree, fruit retention per cent and yield per plant and per hectare was recorded with the spray of 30 ppm 2,4-D which was significantly higher to control.Keywords
NAA, GA3, 2,4-D, Triacontanol, Plant Growth, Physical Characteristics of Fruits, Yield
- A Diagnostic Decision Model Based on Vague Sets
Abstract Views :270 |
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Authors
Affiliations
1 Department of Mathematics, C. C. S. University, Meerut-250004, IN
1 Department of Mathematics, C. C. S. University, Meerut-250004, IN
Source
The Journal of the Indian Mathematical Society, Vol 77, No 1-4 (2010), Pagination: 141-157Abstract
Medical diagnosis involves various kinds of uncertainties in the process. This makes the diagnostic decision analysis an important platform for the applicability of fuzzy sets. Some researchers have given a fuzzy decision making model for medical diagnosis based on fuzzy num- bers and compositional rule. Fuzzy set theoretic analysis is usually centered on the choice of proper membership grades for the elements of fuzzy sets. A single value for the membership grade based on the combined effect of favourable and unfavourable evidence, does not speak much about the appropriateness. Vague set theory takes into account the favourable and unfavourable evidence separately and provides a closed interval in which the membership grade may lie. This paper defines triangular vague numbers to extend the concept of triangular fuzzy numbers and general- izes the model of Yao and Yao using vague set theory. Application of this method to their example covers up the vagueness in the symptom disease relationship and the lack of specificity in patient-symptom observations in a more realistic manner and increases the credibility of the diagnostic decision.Keywords
Vague Set, Lower and Upper Membership Functions, Vague Point, Triangular Vague Number.- Study on the Establishment of a Diversified National Ambient Noise Monitoring Network in Seven Major Cities of India
Abstract Views :325 |
PDF Views:125
Authors
N. Garg
1,
A. K. Sinha
2,
M. K. Sharma
3,
V. Gandhi
2,
R. M. Bhardwaj
2,
A. B. Akolkar
2,
R. K. Singh
3
Affiliations
1 CSIR-National Physical Laboratory, New Delhi 110 012, IN
2 Central Pollution Control Board, Parivesh Bhawan, East Arjun Nagar, Delhi 110 032, IN
3 Delhi Technological University, Delhi 110 042, IN
1 CSIR-National Physical Laboratory, New Delhi 110 012, IN
2 Central Pollution Control Board, Parivesh Bhawan, East Arjun Nagar, Delhi 110 032, IN
3 Delhi Technological University, Delhi 110 042, IN
Source
Current Science, Vol 113, No 07 (2017), Pagination: 1367-1383Abstract
We describe the diversified National Ambient Noise Monitoring Network (NANMN) set up across 7 major cities of India and covering 70 stations for continuous noise monitoring throughout the year. The annual average Lday (06–22 h) and Lnight (22–06 h) values observed in 2015 for these 70 locations are described. Of these, 25 locations are in commercial zones, 12 in industrial, 16 in residential and 17 in silence zones. Each city has 10 noise monitoring stations installed for analysing environmental noise pollution levels round the clock (24 x 365 h). The long-term noise monitoring shows that ambient noise levels are very high compared to the recommended standards for some sites and thus noise abatement measures are essentially required for controlling these levels. The present study is focused on evaluation, analysis and reporting of environmental noise pollution in seven major cities of India and is instrumental in planning for the noise abatement measures for controlling noise pollution in these cities. Such a noise monitoring network established in India is unique and one of the largest noise monitoring networks of its kind across the globe.Keywords
Day Equivalent Level, Day–Night Average Sound Level, National Ambient Noise Monitoring Network, Night Equivalent Level.Full Text
References
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- Structure-Properties Correlation in Welded CA-6NM Stainless Steel
Abstract Views :272 |
PDF Views:6
Authors
M. K. Sharma
1,
M. K. Das
1
Affiliations
1 Electrical Research & Development Association, Makarpura Industrial Estate, Baroda 390010, IN
1 Electrical Research & Development Association, Makarpura Industrial Estate, Baroda 390010, IN
Source
Indian Welding Journal, Vol 34, No 3 (2001), Pagination: 7-12Abstract
Various types of stainless steels are being used for many industrial applications. The martensitic stainless steel CA-6NM is specially used for pumps, impellers and water turbine components. This steel has a very good combination of mechanical as well as microstructural characteristics. However the weldability of this steel is not good. The pre-heating and post-weld treatment is necessary for better properties.
In this paper, the mechanical properties and microstructure of CA-6NM SS welded samples are studied. The correlation between structure and properties of weldments are discussed for SMAW and TIG welding processes. The following welding parameters were used: (1) Welding by SMAW: Filler material-martensitic grade, Current-110 Amp, Voltage-25 Volt, Polarity - DCRP, Speed- 1.2 mm/sec and PHT/IPT-350 ° C, PWHT-600° C/ 4hrs/ FC and (2) Welding by TIG: Filler material -martensitic grade, PHT/IPT-300° C, PWHT-650° C/10 hrs/AC, Retempering -620° C/5hrs/AC, Current-130 Amp, Voltage-12 Volt, Polarity-DCRP, Speed- 2.14 mm/sec and Ar gas pressure- 10 Kg/cm2 .
The increase in toughness and ductility is observed in welded samples compared to as cast base metal whereas the hardness and tensile strength was observed lower The hardness in. SMA welded sample at PHT/IPT 350° C are observed 309 HV in parent metal, 348 HV in weld and 371 HV in HAZ after PWHT at 600° C.
The hardness observed in TIG welded samples are as 270 HV in parent, 309 HV in weld and 299 HV in HAZ. These hardness values show lower tensile strength in TIG welded samples than the SI\/IA welded samples. The microstructure shows ferrite in martensite matrix. The studies show that best optimisation of properties can be made by correlation of microstructure and mechanical properties.
Keywords
Stainless Steel, Welding, GTAW, SMAW, Mechanical Properties and Microstructure.- Effect of Tree Leaf Litterfall on available Nutrients and Organic Carbon Pools of Soil
Abstract Views :214 |
PDF Views:0
Authors
K. K. Bhardwaj
1,
M. K. Singh
2,
Dev Raj
1,
Sonia Devi
1,
Garima Dahiya
1,
S. K. Sharma
3,
M. K. Sharma
4
Affiliations
1 Department of Soil Science, CCS HAU, Hisar, IN
2 Department of Forestry, CCS HAU, Hisar., IN
3 Department of Agronomy, CCS HAU, Hisar, IN
4 Department of Soil Science, CCS HAU, Hisar., IN
1 Department of Soil Science, CCS HAU, Hisar, IN
2 Department of Forestry, CCS HAU, Hisar., IN
3 Department of Agronomy, CCS HAU, Hisar, IN
4 Department of Soil Science, CCS HAU, Hisar., IN
Source
Research Journal of Science and Technology, Vol 14, No 4 (2022), Pagination: 226-232Abstract
A study was conducted to investigate the effect of leaf litterfall of shelterbelt, Azadirachta indica, Ailanthus excels and Prosopis cineraria and control (devoid of trees) on available nutrients and organic carbon pools of soil from 3 distances (2, 5 and 10m) The total litterfall during the study period ranged between 1712 and 4126kg/ha and it was found maximum in the month of January and it was minimum in February in different plantations. Annual litterfall showed considerable variation among different plantations. Litter accumulation under the different plantations canopy was highest in the shelterbelt followed by Prosopis cineraria and lowest in the Azadirachta indica. There was improvement in soil organic carbon, dissolved organic carbon, microbial biomass carbon, available macro (N, P and K) and micronutrients (Zn, Fe, Mn and Cu) tree species when compared to field without trees. Significant improvement in soil organic carbon (0.14 to 0.26 %), available N (55.9 to 116.6kg/ha) P (9.6 to 13.6kg/ha) and K (188.9 to 248.3kg/ha) was observed under these tree species compared to field without trees. The content of Zn, Cu, Fe and Mn and was 15, 25, 40 and 51 percent, respectively higher under these tree species than the control field. The amount of nutrients returned to the soils through litter was significantly highest at 2m distance under different plantations. The present study indicated that these available nutrients and organic carbon pools improved significantly across the different land use system. Due to intensive cultivation and monocropping, the fertility of soil is deteriorating day by day. Simultaneously it is creating a pressure on the natural resources like soil because the population is increasing day by day. Therefore, it is wise to use degraded and problematic soil for cultivation. Agroforestry systems have been recognized as an alternative for the rehabilitation of degraded areas and it provides ecosystem services and reduces human impacts on natural forests (Nair et al., 2009). Tree based land use systems have special role in reclamation of wastelands, use of poor-quality waters, organic carbon build up and moderating climate change related risks. In areas of Haryana and Rajasthan trees like Prosopis cineraria, Azadirachta indica and Ailanthus excels are more beneficial under adverse environments due to their drought hardiness, resistance to inhospitable climate and assured economic returns. These tree species can be grown on soils having poor fertility, moisture deficit and high soil temperature.Keywords
Tree leaf litterfall, nutrients, organic carbon pools of soil.References
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