Soil Science and Chemistry

 

SCIENTISTS :

  1. Dr. Ranjit Kar, Scientist-D (Sectional Head)

 

OBJECTIVES: Enhancement of quality mulberry production through soil and nutritional management.

 

ACHIEVEMENTS : 

    

               Recommendation for doses of N:P2O5:K2O fertilizers and FYM for mulberry growing under irrigated condition has been worked out.

               Nutritional composition of leaves of various varieties has been studied.

               Some heterocyclic compounds were isolated and identified from mulberry.

               It was observed that CAN performed better over Urea at Kishanganj (Bihar).

               Few materials have been isolated from pupae wastes and faeces.

               Soil test based ready reckoners for nitrogen fertilizer application for mulberry growing under irrigated Gangetic alluvial soil and rain-fed Red-laterite-gravelly soil have been evolved.

               Recommendations for doses of lime application for the acid soils of Tarai and Red-laterite-gravelly regions of West Bengal have been made.

              Soil test based ready reckoners for phosphorus and potassium fertilizers application for mulberry growing under irrigated condition of Berhampore, West Bengal and rain-fed conditions of Ranchi, Koraput, Jorhat and Kalimpong have been developed.

  

RESOURCES :              

        Auto-Kjeldahl apparatus,

        Flame photometer,

        Turbidity meter

 

ONGOING PROJECTS :

PPS 3346 :Studies on the effect of sulphur on mulberry growth, yield, nutrient uptake and soil fertility in the Gangetic plains of Eastern India. (July, 2005 June, 2009)

Location:    CSR & TI, Berhampore

 

Milestone: To work out effective dose and form of sulphur to enhance the mulberry leaf yield economically in a sulphur deficient soil and also to improve the soil fertility, principally in terms of available sulphur content.

 

PPS3347: Evaluation of soil fertility for sustained production of quality mulberry leaf in Eastern India under long-term fertilization.   (July, 2005 June, 2010, Initially)

Location:  CSR & TI, Berhampore

 

Milestone: To identify the specific nutrient input package in terms of sustaining leaf productivity of mulberry over the years and maintaining the soil quality as well.

 

CONCLUDED PROJECTS :

01.     Studies on nutritional composition of mulberry leaves.

       Result: Nutritional composition of leaves of various varieties has been    studied.

 

02.     Isolation and identification of different compounds from mulberry.

        Result: Some heterocyclic compounds were isolated and identified.

 

03.   Studies on the effect of CAN on mulberry at Kishanganj (Bihar).

        Result: It was observed that CAN performed better over urea.

 

04.   Studies on by-product utilization.

        Result : Few materials have been isolated from pupae wastes and faeces.

 

05.   Comparative study of different nitrogenous fertilizers with Sufala on leaf yield and nutritive value of mulberry leaf.

 

        Result: Highest dose of nitrogen (300 kg/ha/yr) with Sufala and Urea performed best.

 

06.   Effect of different doses of Ammonium sulphate and lime on soil composition, leaf yield and nutritive value of mulberry leaf.

 

       Result : 900 kg N/ha/yr along with 1.0 mt lime/ha/yr showed the best result.

 

 

MS1: Studies on NPK budgeting for known soil types.

 

Soil types:

        Gangetic alluvial soil

        Red-laterite-gravelly soil

          Result: Ready reckoners for nitrogen fertilizer application for irrigated Gangetic alluvial soil and rain-fed Red-laterite-gravelly soil have been evolved.

 

PPS001: Studies on the problematic soils of West Bengal and their amelioration for mulberry cultivation.

 

    Regions:

        Tarai region

        Red-laterite-gravelly region

  

    Result: Recommendation for doses of lime application for the acid soils of Tarai and Red-laterite- gravelly regions of West Bengal have been made.

 

PPS3154: Assessment of phosphorus and potassium requirements for mulberry (Morus alba L.) based on Mitscherlich-Bray concept.

     Locations:

        CSR & TI, Berhampore

        RSRSs (Ranchi, Koraput, Jorhat and Kalimpong)

 

   Result: Soil test-based ready reckoners for phosphorus and potassium fertilizers application for mulberry growing under irrigated condition of Berhampore, West Bengal and rain-fed conditions of Ranchi, Koraput, Jorhat and Kalimpong have been developed.