Effect of spacing and nitrogen management on productivity and quality of fodder oat in high ranges of Kerala

Authors

  • Niveditha K. Divakaran College of Agriculture, Vellayani, Thiruvananthapuram-695522, India
  • Usha C. Thomas College of Agriculture, Vellayani, Thiruvananthapuram-695522, India
  • R. K. Agrawal ICAR-Indian Grassland and Fodder Research Institute, Jhansi-284003, India
  • Mruthul.T. College of Agriculture, Wayanad-673593, India

DOI:

https://doi.org/10.59515/rma.2024.v45.i2.20

Keywords:

Crude protein, Fodder productivity, Nitrogen management, Planting geometry

Abstract

A study was undertaken during winter seasons of 2021-2022 to standardize spacing and nitrogen levels to realize optimum productivity of fodder oat. Treatments were laid out in factorial RBD with 9 treatments in 3 replications. Treatments consisted of three levels, each of two factors viz., row spacing at 15, 25 and 35 cm and nitrogen levels 60, 90 and 120 kg ha-1, respectively. The results revealed that wider row spacing of 35 cm recorded higher tiller count (9.22 tillers per hill), whereas higher green fodder, dry matter yields (26.58 and 5.32 t ha-1) and NPK uptake (104.81, 24.47 and 88.32 kg ha-1, respectively) was recorded in narrow row spacing of 15 cm. Nitrogen level of 120 kg N ha-1 recorded the highest GFY (27.69 t ha-1), DMY (5.54 t ha-1) chlorophyll (3.54 mg g-1) and crude protein content (12.54%). It also improved leaf area index, leaf area duration and specific leaf area. The interaction of spacing and nitrogen was significant in some parameters. Spacing of 35 cm with 120 kg N ha-1 recorded the tallest plant (111.19 cm) and a greater number of tillers (9.29 hill-1). In case of GFY and DFY spacing of 15 cm with 120 kg N ha-1 recorded the highest yields of GFY (30.14 t ha-1) and DMY (6.03 tha-1), uptake of nitrogen (120.97 kg ha-1), phosphorus (27.91 kg ha-1) and potassium (100.46 kg ha-1).

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30-12-2024
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How to Cite

Niveditha K. Divakaran, Usha C. Thomas, R. K. Agrawal, & Mruthul.T. (2024). Effect of spacing and nitrogen management on productivity and quality of fodder oat in high ranges of Kerala. Range Management and Agroforestry, 45(02), 335–341. https://doi.org/10.59515/rma.2024.v45.i2.20

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Research article

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