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Ghosh, A.
- A Study on General Allometric Relationships Developed for Biomass Estimation in Regional Scale Taking the Example of Tectona grandis Grown in Bundelkhand Region of India
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PDF Views:88
Authors
Affiliations
1 Indian Grassland and Fodder Research Institute, Jhansi 284 003, IN
2 Uttar Banga Krishi Viswavidyalaya, Cooch Behar 736 165, IN
1 Indian Grassland and Fodder Research Institute, Jhansi 284 003, IN
2 Uttar Banga Krishi Viswavidyalaya, Cooch Behar 736 165, IN
Source
Current Science, Vol 110, No 3 (2016), Pagination: 414-419Abstract
In this communication an effort has been made to develop a general non-site specific allometric relationship taking Tectona grandis grown in semi-arid Bundelkhand region without harvesting any tree. To determine the most appropriate predictor variable for producing the relationship, different physiological parameters of this tree species like diameter at breast height (dbh), basal diameter, tree height, forking height, collar diameter, etc. were collected from the standing trees from MP part of Bundelkhand region, comprising a total of 45 sites of 4 districts namely Guna, Vidisha, Chhatarpur and Tikamgarh. The dataset contained 418 trees with biomass ranging from 12.79 kg/tree to 12707.92 kg/tree, height ranging from 1.5 to 18.5 m and dbh ranging from 0.03 to 0.44 m. For developing the models; dbh, height, dbh × height and dbh2 × height were used as predictor variables. All four contrasting sites were taken for developing allometric models and after examining model residuals and site-specific relationships, it was found that using dbh2 × height alone as the predictor variable produced the most stable model. Thus it makes regional estimation of aboveground biomass production easier with precision as accurate as site-specific allometry.Keywords
Allometry, Bundelkhand Region, Normalized Difference Vegetation Index, Residual Diagnostics, Tectona grandis.Full Text
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- Lemon Cv. Assam Lemon (Citrus limon Burm.) Quality and Soil-Leaf Nutrient Availability Affected by Different Pruning Intensities and Nutrient Management
Abstract Views :291 |
PDF Views:88
Authors
Arkendu Ghosh
1,
K. Dey
1,
N. Bhowmick
2,
S. K. Ghosh
2,
S. Bandyopadhyay
3,
P. S. Medda
4,
A. Ghosh
5
Affiliations
1 Department of Fruits and Orchard Management, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia 741 252, IN
2 Department of Pomology and Post Harvest Technology, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar 736 165, IN
3 Department of Agronomy, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar 736 165, IN
4 Department of Plantation Crops and Processing, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar 736 165, IN
5 Department of Agricultural Statistics, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar 736 165, IN
1 Department of Fruits and Orchard Management, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia 741 252, IN
2 Department of Pomology and Post Harvest Technology, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar 736 165, IN
3 Department of Agronomy, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar 736 165, IN
4 Department of Plantation Crops and Processing, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar 736 165, IN
5 Department of Agricultural Statistics, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar 736 165, IN
Source
Current Science, Vol 112, No 10 (2017), Pagination: 2051-2065Abstract
A field experiment was laid out in two factorial randomized block design with four levels of pruning and seven levels of nutrients, consisting recommended dose of fertilizers and different combinations of organic manure (vermicompost), inorganic fertilizer, bio-fertilizer (azotobacter), mycorrhiza (VAM) and their interaction between 2013 and 2015 on 9-year-old lemon plants. Studies revealed that all physicochemical parameters, viz. fruit weight, puncture force, total soluble solid, total sugar, ascorbic acid were highest in (P3N4) combination of higher level of pruning. However, the maximum availability of leaf and soil nutrients was recorded in N4.Keywords
Lemon, Nutrient Management, Pruning, Soil-Leaf Nutrient Availability, Yield and Quality.Full Text
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