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<p>In northwestern India, the mechanical harvesting of maize, particularly spring maize, is posing a challenge to manage its residue in succeeding transplanted rice. Nevertheless, appropriate management of spring maize residues in rice offers an opportunity to improve the soil health. A field experiment was conducted to optimize the spring maize residue management method in transplanted rice and nitrogen dose to rice under spring maize residue incorporation. The treatments were comprised of five spring maize residue management methods (residue incorporation before puddling, chopping + incorporation before puddling, residue incorporation at the time of puddling, residue burning and residue removal) as main plots, whereas subplots consisted of three nitrogen levels (100% of the recommended dose of nitrogen (RDN), 125% of RDN, and 150% of RDN). Growth and yield parameters (leaf area index, effective tillers, panicle length, number of grains/panicle and 1000-grain weight) and yield of rice were not significantly influenced by spring maize residue management. Averaged over the spring maize residue management methods, a higher dose of nitrogen i.e. 150% of RDN helped to enhance the growth, yield and quality of rice significantly as compared with 100% of RDN but statistically at par with 125% of RDN. The interaction effect showed that the yield of rice under spring maize residue incorporation methods increased significantly with an increase in nitrogen dose upto 125% of RDN, with an average increase of 4.65 and 4.51% in grain yield at 125% of RDN under residue incorporation over residue burning and removal, respectively. Improvement in soil parameters (available nitrogen, phosphorus and potassium content and organic carbon content) was observed with residue management treatments over residue burning and removal. Transplanted rice could be cultivated in a profitable and environment-friendly manner under spring maize residue incorporation at the time of puddling with a maximum B: C ratio (4.10) followed by residue incorporation before puddling (3.82) at 125% of RDN.</p>

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Productivity and Profitability of Transplanted Rice in Relation to Spring Maize Residue and Fertilizer Nitrogen Management

  • 期刊论文

  • 发表日期：

    2026年6月19日

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  • Lovedeep Kaur,
  • Jagroop Kaur,
  • S. S. Manhas,
  • Harmeet Singh,
  • Vivek Sharma

摘要

In northwestern India, the mechanical harvesting of maize, particularly spring maize, is posing a challenge to manage its residue in succeeding transplanted rice. Nevertheless, appropriate management of spring maize residues in rice offers an opportunity to improve the soil health. A field experiment was conducted to optimize the spring maize residue management method in transplanted rice and nitrogen dose to rice under spring maize residue incorporation. The treatments were comprised of five spring maize residue management methods (residue incorporation before puddling, chopping + incorporation before puddling, residue incorporation at the time of puddling, residue burning and residue removal) as main plots, whereas subplots consisted of three nitrogen levels (100% of the recommended dose of nitrogen (RDN), 125% of RDN, and 150% of RDN). Growth and yield parameters (leaf area index, effective tillers, panicle length, number of grains/panicle and 1000-grain weight) and yield of rice were not significantly influenced by spring maize residue management. Averaged over the spring maize residue management methods, a higher dose of nitrogen i.e. 150% of RDN helped to enhance the growth, yield and quality of rice significantly as compared with 100% of RDN but statistically at par with 125% of RDN. The interaction effect showed that the yield of rice under spring maize residue incorporation methods increased significantly with an increase in nitrogen dose upto 125% of RDN, with an average increase of 4.65 and 4.51% in grain yield at 125% of RDN under residue incorporation over residue burning and removal, respectively. Improvement in soil parameters (available nitrogen, phosphorus and potassium content and organic carbon content) was observed with residue management treatments over residue burning and removal. Transplanted rice could be cultivated in a profitable and environment-friendly manner under spring maize residue incorporation at the time of puddling with a maximum B: C ratio (4.10) followed by residue incorporation before puddling (3.82) at 125% of RDN.