Raghvendra Tiwari
@iftmuniversity.ac.in
Assistant Professor (Microbiology)
IFTM University, Moradabad U.P. India
EDUCATION
Ph.D. Biotechnology
RESEARCH, TEACHING, or OTHER INTERESTS
Microbiology, Agricultural and Biological Sciences, Applied Microbiology and Biotechnology, Biotechnology
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
S. K. Shukla, V P Jaiswal, Lalan Sharma, Asha Gaur, Raghvendra Tiwari, and Abhay Srivastava
Informa UK Limited
ABSTRACT A field experiment was conducted for two cropping seasons during 2016–19 at the ICAR-Indian Institute of Sugarcane Research, Lucknow, Uttar Pradesh, India, with the objectives to study the effect of i) K nutrition and variable sources of K on growth analysis of sugarcane ratoon crop, ii) the response of K on the photosynthetic rate of crop and iii) contribution of K on yield attributes, sugarcane, and sugar yields. Mean results of two cropping seasons indicated that the application of potassium brought forth a 12.08% improvement in tiller population over no K (107.3 thousand/ha). Potassium application through K2SO4 (SOP) showed the highest net rate of photosynthesis (15.28 µmol/m2/s) which was about 30.71% higher than the control. Among the various sources of K, SOP was found the best in improving sugarcane and sugar yields. Application of SOP resulted in 18.69% ratoon cane yield improvement over the control. Application of 75% K through K2SO4 resulted in a higher sugar yield (12.01 t/ha) which was 25.76% higher than the control (9.55 t/ha). Potassium ammonium sulfate (PAS) and murate of potash could not produce better results as compared to K2SO4. Potassium application through SOP showed the highest net rate of photosynthesis (15.28 µmol/m2/s) during the grand growth phase. Application of 50.4 kg K/ha (75% more than recommended) through K2SO4 increased 18.69% sugarcane (106.7 t/ha) and 25.76% (12.01 t/ha) sugar yields over the control (no K) and was found to the best and could be recommended for improving sugarcane and sugar yields of ratoon in subtropical India.
S.K. Shukla, V.P. Jaiswal, Lalan Sharma, Raghvendra Tiwari, A.D. Pathak, Asha Gaur, S.K. Awasthi, and Abhay Srivastava
Elsevier BV
Raghvendra Tiwari, Kajal Chandra, S. K. Shukla, V. P. Jaiswal, Natarajan Amaresan, Abhay Kumar Srivastava, Asha Gaur, Divya Sahni, and Rajesh Kumar Tiwari
Springer Science and Business Media LLC
S. K. Shukla, V. P. Jaiswal, Lalan Sharma, S. K. Yadav, S. K. Awasthi, Asha Gaur, Adil Zubair, and Raghvendra Tiwari
Springer Science and Business Media LLC
Raghvendra Tiwari, S. K. Shukla, V. P. Jaiswal, Lalan Sharma, Deeksha Joshi, Kajal Chandra, Asha Gaur, Abhay Srivastava, and Rajesh Kumar Tiwari
Springer Science and Business Media LLC
Raghvendra Tiwari, S. K. Shukla, V. P. Jaiswal, Lalan Sharma, Deeksha Joshi, Kajal Chandra, Asha Gaur, Abhay Srivastava, and Rajesh Kumar Tiwari
Springer Science and Business Media LLC
V. P. Jaiswal, S. K. Shukla, Lalan Sharma, Ishwar Singh, A. D. Pathak, Mona Nagargade, Arup Ghosh, C. Gupta, Asha Gaur, S. K. Awasthi,et al.
Springer Science and Business Media LLC
S. K. Shukla, V. P. Jaiswal, Lalan Sharma, A. D. Pathak, A. K Singh, Rajendra Gupta, S K Awasthi, Asha Gaur, Adil Zubair, and Raghvendra Tiwari
Informa UK Limited
ABSTRACT Soil compaction in the plow layer of soils is becoming a serious concern because of conventional tillage practices adopted by sugarcane growers utilizing a rotavator, particularly in medium to heavy textured soils. Continuous use of machinery causes compaction in the plow layer; thus strategic tillage practices have become an essential component in intensive agriculture. Keeping these points in view, a field experiment was conducted in split plot design considering four pre-plant tillage treatments, i.e., (i) one subsoiling (SS) followed by two harrowings (H) (ii) subsoiling alone and direct planting through Sugarcane Cutter Planter (SS) (iii) one plowing through moldboard (MB) plow and two harrowings (MB+H) (iv) and conventional practice (CP) in main plots and three ratoon management treatments viz., (i) HW:Three hand weedings (HW) (ii) integrated weed management (IWM), trash mulching at the time of ratoon initiation and application of microbial consortia (TM +MC) in subplots. Results on bulk density in surface and subsurface layers indicated a significant reduction due to subsoiling. Higher availability of N (252 to 310.2 kg ha−1) was analyzed with adoption of subsoiling as compared to conventional practice (218.4 to 224 kg N ha−1). Subsoiling improved soil microbial biomass carbon (SMBC) by 39% to 73% and 32.20% to 46% as compared to conventional practice in 0–15 cm and 15–30 cm depth, respectively. Among all the primary tillage treatments, sub soiling enhanced SMBC at the highest level (1574 mg C/kg soil/day in 0–15 cm soil depth). Sugarcane (97.26 t ha−1) and sugar (11.87 t ha−1) yields also improved significantly under subsoiling as compared to other pre-plant tillage treatments. Subsoiling before planting also increased mean ratoon cane (117.6 t ha−1) and sugar yields (14.48 t/ha). In addition to trash mulching and application of microbial consortia in ratoon crop proved effective for sustaining higher ratoon yields in sugarcane. Short title: Minimum tillage affecting soil quality parameters and sugarcane yield
S. K. Shukla, Lalan Sharma, V. P. Jaiswal, A. D. Pathak, Raghvendra Tiwari, S. K. Awasthi, and Asha Gaur
Springer Science and Business Media LLC
AbstractIntensive agriculture involving high crop intensity, unavailability of organics, and higher use of straight fertilizers causes imbalanced use and deficiencies of several other macro and micronutrients. Nutrients supply through the integration of microbial consortium containing Gluconacetobater diazotrophicus, Trichoderma harzianum, and Pseudomonas fluorescens can reduce the requirements on the one hand and can also increase the response of chemical fertilizers. Thus we had planned the present experiment with the objectives (i) to determine the effect of integrated application of microbial consortium (MC) and NPK fertilizer on soil quality parameters and crop growth and yield attributes and (ii) to assess the effect of integration on agronomic efficiency of N, P and K and find out the possibilities for reduction in applied doses of NPK, if any. Five treatments viz., T1; N0P0K0; T2: N75P13K25; T3: N150P26K50; T4: N75P13K25 + microbial consortium and T5: N150P26K50 + microbial consortium containing new strains of Trichoderma harzianum, Gluconcetobacter diazotrophicus, and Pseudomonas fluorescens (CFU 109–10 per ml liquid culture) were evaluated under four replications in a randomized block design (RBD). Experimental results indicated that integrating microbial consortium and NPK fertilizers' application proved effective in improving soil organic carbon, soil microbial population, microbial biomass carbon, microbial biomass nitrogen, and soil respiration. Integrated use of microbial consortium with NPK also improved the cation exchange capacity of soil and roots. However, the growth and yield attributes, nutrients uptake, sugarcane, and sugar yields also revealed a positive effect of microbial consortium's integrated application with NPK. The integration of MC and NPK also improved the agronomic efficiency of applied nutrients (NPK). Reduction of 50% NPK with these microbial consortia (Trichoderma harzianum, Gluconcetobacter diazotrophicus, and Pseudomonas fluorescens) was found better than the application of full NPK through chemical fertilizers. Thus application of N150P26K50 with microbial consortium can sustain soil fertility besides improving sugarcane and sugar yields in subtropical Indian conditions.
S. K. Shukla, V. P. Jaiswal, Lalan Sharma, A. D. Pathak, Akhilesh Kumar Singh, Rajendra Gupta, S. K. Awasthi, Asha Gaur, Adil Zubair, and Raghvendra Tiwari
Springer Science and Business Media LLC