A. Dass , U. S. Patnaik , S. Sudhishri , N. K. Paikaray , V. K. Dwivedi

Abstract

A demonstrative field trial consisting of one common treatment of Lemon grass vegetative barrier and four treatments of four agricultural crops (Finger millet, Black gram, Pigeon pea and Black gram) was conducted under RBD replicated quarterly, at Research Farm of CSWCRTI, Research Centre, Sunabeda. Lemon grass was planted, double row staggered with inter row and intra row spacing of 30 cm across slope as vegetative barrier in integration with small trench-cum-bund at VI of 1.0 m at 4 per cent slope land. Till third year of planting, 74 per cent of clumps survived. Due to increase in clump size, inter-clump-space coverage increased from 16.65 per cent (initially) to 74.67 per cent after 2 years of planting. On an average, it conserved 41.41 t/ha/year of soil. This saved washing off of 236, 7.95, 0.54 and 7.05 kg/ha/year of organic carbon, available N, available P, and available K, respectively. Green biomass yield was 471.8 kg/ha, 1988 kg/ha and 2917.25 kg/ha during the year of planting, one-year after planting and two years after planting, respectively. The corresponding oil yield was estimated as 2.36, 9.94, and 14.59kg /ha, which can fetch additional gross returns of Rs. 826/-, Rs. 3,479/- and Rs. 5,105/-, respectively. Yield of all the crops within 1m distances from the barrier was negatively influenced. However at next 1 to 2m distances, a positive impact of Lemon grass barrier was observed on the economic yield of all the associated crops under trial.

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P. L. Saroj , V. K. Dwivedi , Ashok Kumar , K. S. Dadhwal

Abstract

The investigation was carried out at CSWCRTI, Research Farm, Selakui, Dehra Dun to see the productivity of groundstorey crops with different tree species. The cropping sequence (jowar-toria) was tested wi th three plantations i.e. Eucalyptus hybrid, Bombax ceiba and mixed plantations (natural) of Cassia jistula, Bombax ceiba, Acacia catechu, Lannea coromandalica and Dalbergia sissoo. It was observed that about 14.89, 12.79 and 12.14 tlha green fodder yield of jowar can be obtained with Bombax ceiba, Eucalyptus hybrid and mixed plantations, respectively. The trend was same with toria and seed yield recorded were 3.68, 2.78 and 2.38 q/ha under Bombax ceiba, Eucalyptus hybrid and mixed plantations, respectively. The yield of both the crops increases with increasiug distance from the tree trunk, however the direction did not influence the yield of groundstorey crops.

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V. K. Dwivedi , K. S. Dadhwal , K. Jeevaratanam

Abstract

No abstract

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V. K. Dwivedi , K. S. Dadhwal , B. Haldorai

Abstract

No abstract

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M. N. Ramesha , V. K. Dwivedi , P. Ratha Krishnan

Abstract

Forest cover dynamics of Bundelkhand has been studied from 1971 to 2009. Madhya Pradesh part of Bundelkhand perhaps has ecologically near-suffice forest cover in southern districts viz., Chhatarpur, Damoh, Panna and Sagar (29.69 per cent GA) whereas Datia and Tikamgarh districts possess less than 10 per cent forest cover with declining trend. Uttar Pradesh part of Bundelkhand lies along the Yamuna river alluvial belt and is an intensively cultivated plain land. Forest cover in the region is very poor (6.6 per cent GA), five districts have less than 6 per cent GA under forest vegetation barring Chitrakoot and Lalitpur districts, having 18.14 and 11.31 per cent GA under forest respectively. There have been peaks and troughs in the long-term trend of forest area. All the districts had shown a trough of reduction in forest area from 1991 to 2003. Resource poor Bundelkhand region requires proper forestry initiatives to reverse dwindling forest area and tree cover to ensure small timber for agricultural implements, thorn and twigs for fencing and fuel wood for cooking.

Keywords

Forest Cover, Bundelkhand, Greening Pattern

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M. N. Ramesha ¹, P. P. Adhikary ¹, V. K. Dwivedi ¹, P. Rathakrishnan ², S. P. Tiwari ¹

Affiliations
1 Central Soil & Water Conservation Research & Training Institute, Research Centre, Datia (M.P.), IN
2 Central Arid Zone Research Institute, Jodhpur (Rajasthan), IN

Abstract

This paper discusses the influence of extreme cold on Prosopis juliflora, recorded in Bundelkhand region at Datia, Madhya Pradesh, in the year 2011. P. Juliflora more akin to Australian form has colonised on the parched tank bed since 2004 and it has grown lavishly. P. juliflora die-back was observed in low lying area of about 5ha on the parched tank bed. Complete die-back (up to 93 % of stems over almost five hectare) was observed in second fort night of January 2011. Its 0 0 die-back has been attributed to extreme low temperature recorded as-1.5 C to 3 C during first 12 days of January 2011. Low lying areas with high soil moisture content coupled with high stand density and low temperature prevailing for a considerable period might be the reason for freezing of available soil moisture to the plants and causing die-back. Plants have started recuperating by sprouting new shoots in main stem and at base since first week of March 2011. No die-back symptoms were observed in plants grown at higher elevation in the adjoining area.

Keywords

Climatic Aberration, Die-Back, Prosopis Juliflora.

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