R. K. Sarkar

University of Calcutta · Department of Agronomy

A field experiment was conducted during the Spring seasons of 2017 and 2018 at the Experimental farm of University of Calcutta, Baruipur on rice fallow Gangetic alluvial soil to study the effect of 3 levels of Phosphorus (0, 30 and 60 kg P2O5 /ha), 3 levels of Sulphur (0, 30 and 60 kg P2O5 /ha) and 3 levels of zinc (0, 10 and 20 kg Zn /ha) in a fac...

Jute seed production technology in midland rice ecology in traditional jute growing areas for self sufficiency of small and marginal farmers in Eastern India and Bagladesh.

Jute seed production potential in midland rice ecology in traditional jute fibre producing areas has been found up to 638 kg/ha (around 120 DAT) by transplanting 40 days old seedlings on ridges in the month of September. Thus jute farmers can produce quality jute seed @ 3.1 kg to 3.8 kg from 1.5 cent land which is sufficient for sowing in 1 ha land...

Maintenance of young tea under organic package of practice is a challenging task and needs a proper intervention. The present study under FAO-CFC-TBI project was done at Maud Tea Estate, Assam, India to find out an effective pathway for growing healthy and productive young tea plants. Seven different organic packages of practice were chosen to eval...

Huge depletion of soil microflora under conventional farming practice has become the primary contributory factor towards the present depletion of soil and crop productivity. Reconstitution of soil microbial dynamics has been identified as the only way out but there has been a debate regarding most effective pathway for soil rejuvenation i.e. whethe...

Organic practice from infantile stage of plants is said to be a better option than chemical practice to ensure healthy planting material for post planting survival assurance and high productive potential. But development of healthy nursery under organic management is still considered a challenging job, considering slow or insufficient nutrient mine...

Organic agriculture has become the quintessential solution for reverting the cycle of depletion propelled by chemical farming practices. However, despite the compulsion, organic farming is still to be adopted at large considering that crop sustenance at an economical cost is yet to be achieved under this farming system. In case of plantation crops...

The present study under FAO-CFC-TBI Project entitled ‘Development, Production and Trade of Organic Tea’ was aimed to bring forth the comprehensive organic pathway/ package of practice, which can ensure crop and soil sustainability in the most cost- effective manner. To achieve the project objectivity different organic methods (i.e. the ones which...

Organic agriculture has become the quintessential solution for reverting the cycle of depletion propelled by chemical farming practices. However, despite the compulsion, organic farming is still to be adopted at large considering that crop sustenance at an economical cost is yet to be achieved under this farming system. In case of plantation crops...

Organic cultivation has been accepted as the most scientific pathway for sustaining soil and crop productivity. However, in tea cultivation sustainable organic crop production has remained elusive. Age old bushes, continuous stress on plants due to multiple vegetative propagation, limited scope for soil rejuvenation, soil acidity/ improper nutrient...

A new biodegradation process called Novcom composting method and its end product quality was evaluated at Maud tea estate in Assam. The effectivity of biodegradation process was evaluated in terms of temperature generation with composting heap and its volume reduction during composting period. In order to assess the end product i.e. compost quality...

A conscious effort has been initiated by North Barrackpore municipality in coordination with Garulia municipality for management of municipality solid waste, under ‘Waste to Wealth’ Programme during 2010-2011. A new biodegradation method called ‘Novcom composting method’ of Inhana Biosciences (R & D Organization based in Kolkata, India), which is b...

Chemical farming through its compartmental approach has caused severe negativities on soil and surrounding ecology as a whole. The situation now demands nature harnessed agriculture, but the present organic practices mostly follow the same compartmental approach substituting chemical components by organic inputs. This has resulted in both delayed o...

Organic soil amendment plays the key role both during conversion and for practicing organic agriculture. However, major limiting factor towards large scale organic agriculture is their huge quantitative requirement on the basis of N, P, K replacement theory. The present study at Maud tea estate (Assam), India under CFC-TBI Project, 2008-2011; aims...

A field experiment was conducted at Baruipur Farm, Calcutta University during spring seasons of 2004 and 2005 on Entisol, to study the effect of nitrogen, sulphur and foliar spray of nitrate salts on sunflower (Helianthus annuus L.). Nitrogen application up to 120 kg/ha improved the physiological growth parameters, yield attributes and seed yield b...

Results of a field experiment conducted in rainy season (June to December) of 1988 and 1989 at Deochanda Experiment Station, Bihar, India, indicated that intercropping cereals, pulses and oilseeds with normal planted base crop of redgram (Cajanus cajan [L.] Mill sp.) increased land use efficiency and gave higher total yields compared to pure croppi...

An experiment was conducted during rainy season (April-August) of 1994 and 1995 to assess the performance of rice, maize, sesame, greengram and blackgram grown in sole and intercropping system on Gangetic alluvial upland (Entisol) in West Bengal. India. All intercropping systems except sesame + rice had higher total productivity in terms of rice eq...

A field experiment was conducted during the winter season of 2002-2003 and 2003-2004 at Baruipur, West Bengal, to evaluate herbage productivity and economic feasibility of oat (Avena sariva)-based intercropping system with mustard and legumes under varying fertility levels in Gangetic alluvial (Entisol) soil. Paired row planting (20/40 cm) of oat i...

A field experiment was conducted during the spring 2003 and 2004 in Entisol at Baruipur, to study the effect of seed treatment and foliar nutrition on growth and productivity of sunflower (Helianthus annuus L.). Seed treatments resulted in an increase of seed yield by 2% to 10% over dry seed. Dithane M-45 recorded the highest seed yield, closely fo...

A field experiment was conducted during 2002 to 2003 to study the effect of pre-sowing seed treatment with water soaking, 1% KCl, 1% KH 2PO 4, 0.1% (NH 4) 6MO 7O 24 4H 2O, rhizobium culture and foliar spray of nitrate salts with 0.25% KNO 3, 0.50% KNO 3, 0.203% Ca (NO 3) 2 and 0.406% Ca (NO 3) 2 on growth and yield of greengram [Vigna radiata (L.)...

A field experiment was conducted during the summer seasons of 2001 and 2002 at Baruipur, West Bengal, to study the effect of crop geometry, fertility levels and nipping on physiological parameters in relation to productivity of sesame (Sesamum indicum L.) in gangetic alluvial (Entisol) soil. Sixteen treatments comprising 2 crop geometries (30 cm x...

A field experiment was conducted during winter (rabi) season (October - February) of 2001-2002 at Baruipur, to assess production potential of lentil (Lens culinaris Medikus) and linseed (Linum usitatissimum L.) in sole cropping, and in intercropping under additive and replacement series. Six intercrop systems were in additive series with 100% lenti...

A field experiment was conducted during late winter (rabi) seson of 1998-99 and 1999-2000 at Nimpith, to study the effect of planting method and crop geometry on productivity of rainfed upland cotton (Gossypium hirsutum L.) in lowland rice fallows. Transplanting of cotton performed better than direct sowing when the crop was sown during the second...

A field experiment was conducted during the rainy (kharif) seasons of 2000 2001 at Baruipur, Kolkata, to evaluate the production potential and economic feasibility of intercropping in rainfed direct-seeded rice (Oryza sativa L.) with groundnut (Arachis hypogaea L.) and pigeonpea [Cajanus cajan (L.) Millsp.] under different spatial arrangements. The...

A field experiment was conducted during the rainy season of 1999 and 2000 at Baruipur, to evaluate different planting patterns of sunflower (Helianthus annuus L.) and pigeonpea [Cajanus cajan (L) Millsp.] intercropping. Various growth and yield attributes and yield of sunflower and pigeonpea were superior under sole cropping. Intercropping of sunfl...

A field experiment was conducted during the rainy season of 2000 and 2001 to determine productivity and economic feasibility of sesame (Sesamum indicum L.)-based intercropping system on Gangetic alluvial rainfed upland. All the intercropping systems registered significant and appreciable increase in total productivity in terms of sesame-equivalent...

A field experiment was conducted during the spring season of 1999 and 2000 to study the effect of planting geometry, direction of planting and sulphur application on growth and productivity of sesame (Sesamum indicum L.) in gangetic alluvial (Entisol) land. Planting geometry of 45 cm × 15 cm enhanced certain physiological growth parameters like lea...

A field experiment was conducted during the spring seasons of 1997 and 1998 at Baruipur to evaluate the economically and biologically sustainable intercrop association of sesame (Sesamum indicum L.) with greengram (Phaseolus radiatus L.), blackgram (Phaseolus mungo L.), groundnut (Arachis hypogaea L.) and sunflower (Helianthus annus L.) on rice fal...

A field experiment was conducted during the spring season of 1997 and 1998 at Baruipur, West Bengal, to evaluate the economically and biologically sustainable intercrop association of sesame (Sesamum indicum L.) with greengram (Phaseolus radiatus L.), blackgram (P. mungo L.), groundnut (Arachis hypogaea L.), and sunflower (Helianthus annuus L.) on...

A field experiment was conducted during the early spring season of 1996 and 1997 at Baruipur to evaluate the feasibility of intercropping greengram (Vigna radiatus L.), blackgram (Vigna mungo L.) and sesame (Sesamum indicum L.) in sunflower (Helianthus annuus L.) under different seeding methods in rice fallow Gangetic alluvial land. Paired-row plan...

A field experiment was conducted during the spring season of 1995 and 1996 at Baruipur, to study the productivity and economic profitability of sunflower (Helianthus annuus L.)-based intercropping systems on rice (Oryza saliva L.) fallow genetic alluvial land. Intercropping of groundnut (Arachis hypogaea L.) with normal planting of sunflower was fo...

A field experiment was conducted during the spring season of 1995 and 1996 at Baruipur, to study the effect of micronutrients on physiological parameters in relation to yield of greengram (Phaseolus radiatus L.) on rice fallow Gangetic alluvial land (Entisol). Application of muiti-micronutrients followed by Zn alone resulted in better physiological...

A field experiment was conducted during the winter season of 1992-93 and 1993-94 at Nimpith to evaluate the intercropping systems of pulse crops greengram (Phaseolus radiatus L.), blackgram (Phaseolus mungo L.) and oilseed crop groundnut (Arackis hypogaea L.) with sunflower (Helianthus annuus L.) in 2 planting patterns. Intercropping reduced the gr...