Precision Nutrient Management in Zero-Till Direct-Seeded Rice Influences the Productivity, Profitability, Nutrient, and Water Use Efficiency as Well as the Environmental Footprint in the Indo Gangetic Plain of India

Rahul Sadhukhan, Dinesh Kumar (), Suman Sen, Seema Sepat, Avijit Ghosh, Yashbir Singh Shivay, Mahesh Chand Meena, Anjali Anand, Rajesh Kumar, Laimayum Devarishi Sharma, Kiranmoy Patra, Vijay Pratap, Amnah Mohammed Alsuhaibani, Ahmed Gaber and Akbar Hossain ()
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Rahul Sadhukhan: ICAR-Indian Agricultural Research Institute, New Delhi 110012, India
Dinesh Kumar: ICAR-Indian Agricultural Research Institute, New Delhi 110012, India
Suman Sen: ICAR-Indian Agricultural Research Institute, New Delhi 110012, India
Seema Sepat: ICAR-Indian Agricultural Research Institute, New Delhi 110012, India
Avijit Ghosh: ICAR-Indian Agricultural Research Institute, New Delhi 110012, India
Yashbir Singh Shivay: ICAR-Indian Agricultural Research Institute, New Delhi 110012, India
Mahesh Chand Meena: ICAR-Indian Agricultural Research Institute, New Delhi 110012, India
Anjali Anand: ICAR-Indian Agricultural Research Institute, New Delhi 110012, India
Rajesh Kumar: ICAR-Indian Agricultural Research Institute, New Delhi 110012, India
Laimayum Devarishi Sharma: Department of Natural Resource Management, Multi-Technology Testing Centre & Vocational Training Centre, Selesih, Central Agricultural University, Imphal 795004, India
Kiranmoy Patra: ICAR-Indian Agricultural Research Institute, New Delhi 110012, India
Vijay Pratap: ICAR-Indian Agricultural Research Institute, New Delhi 110012, India
Amnah Mohammed Alsuhaibani: Department of Physical Sport Science, College of Education, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
Ahmed Gaber: Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
Akbar Hossain: Division of Soil Science, Bangladesh Wheat and Maize Research Institute, Dinajpur 5200, Bangladesh

Agriculture, 2023, vol. 13, issue 4, 1-18

Abstract: Conventional tillage practices coupled with irrational use of fertilizer in the rice-wheat cropping system (RWCS) often leads to poor productivity, low nutrient use efficiency, and cause environmental pollution. Conservation tillage with surface residue retention in combination with intelligent nutrient management might improve productivity and use efficiency of water as well as nutrients in zero-till direct-seeded rice (ZTDSR). Keeping this in mind, during the kharif season of 2018 and 2019, a trial was carried out at the ICAR-IARI in New Delhi to investigate the varying nutrient management approaches following a precise manner in DSR. The treatments consisted of soil-test-based NPK (STB-NPK) and Nutrient Expert ® (+LCC N ) based NPK (NE-NPK) applications, Fertilizer applied at the recommended dose (RDF) [120-60-40 kg/ha NPK], the state recommended NPK (110-50-40 kg/ha) and omission plot technique of NPK [i.e., STB (N 0 PK, NP 0 K & NPK 0 ); SR (N 0 PK, NP 0 K & NPK 0 ) and NE-(N 0 PK, NP 0 K & NPK 0 )]. The results indicated that STB NPK application led to a 12% higher grain yield over RDF. However, NE-NPK resulted in a 7% and 35% increase in N (AEN) agronomic efficiency and P (AEP) over the STB-NPK application respectively. In contrast, AE k was 24% higher in STB-NPK over NE-NPK treatment. The comparison of two years’ results that the first year performed better than the succeeding year in these respect (productivity and AE) except in the case of AE k . The N 2 O emission in NE-NPK treatment was also significantly reduced (49%) over the control (no N). STB-NPK treatment also improved profitability by 22% over RDF. Precision nutrient management (PNM) increased the crop yield, income, and use efficiency of nutrients and water and reduced greenhouse gas (GHG) emissions of DSR in Southeast Asia.

Keywords: direct-seeded rice; N 2 O emission; Nutrient Expert ®; nutrient-water use efficiency; soil-test based recommendation (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2023
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