Tillage and planting density affect the performance of maize hybrids in Chitwan, Nepal
To find out whether the different tillage methods at different planting densities affect the performance of maize hybrids, an experiment was carried out at National Maize Research Program, Rampur during spring season of 2013 and 2014. The experiment was laid out in strip plot design with three replications having 12 treatments. The vertical factor was tillage with conservation tillage (No Tillage + residue=NT) and conventional tillage (CT) and the horizontal factor were genotypes (Rampur Hybrid-2 and RML-32/RML-17) and in split planting geometries (75cm × 25cm =53333 plants/ha, 70cm × 25cm=57142 plant/ha and 60cm ×25cm= 66666 plants/ha). In both the years, the highest number of cobs (73,177 and 67638/ha) was recorded at planting density of 66666/ha. NT had the highest no of kernel rows/cob (14.01) as against 12.12 in CT in 2014. The highest number of kernels (27.3 and 29.29) per row was recorded in NT during 2013 and 2014 respectively. Similarly, in 2014, the highest number of kernels were found in RML-32/RMl-17 (29.17/row) and planting density of 53333/ha (28.46/row). In 2013, RML-32/RML-17 produced the highest test weight of 363.94g over the Rampur hybrid-2 with 362.17g. Significantly the highest grain yield of 9240.00 kg/ha in 2013 and 7459.80 kg/ha in 2014 at planting geometry of 65cm ×25cm were recorded. No effects was found by tillage methods for grain yields of maize in 2013, but was found in 2014 (7012.18 kg in NT compared to 6037.59 kg/ha in CT). NT and wider spaced crop matured earlier in both the years; however Rampur hybrid-2 matured earlier to RML-32/RML-17 in 2013. In 2014, harvest index of 47.85 % was recorded in planting geometry of 66666/ha, the highest benefit cost ratio of 1.36 was worked out in NT and 1.46 at the density of 66666/ha. The highest value of 2.46% of soil organic matter was recorded in NT as compared to 2.43% in CT.
Journal of Maize Research and Development (2015) 1(1):10-20
Copyright (c) 2015 National Maize Research Program Nepal
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
© The Authors
Authors retain the copyright of the published articles.
Under the Creative Commons Attribution-NonCommercial license, others than authors can remix, tweak, and build upon author’s work non-commercially, and although their new works must also acknowledge the author and be non-commercial, they don’t have to license their derivative works on the same terms.
All articles in the Journal of Maize Research and Development are licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. This license allows readers to
- Share — copy and redistribute the material in any medium or format
- Adapt — remix, transform, and build upon the material
- Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- NonCommercial — You may not use the material for commercial purposes.
The Author warrants that the Work:
- Has not been published before (except if included in an institutional pre-print server).
- Is not presently being considered for publication elsewhere.
- Does not violate any intellectual property right of any person or entity.
- Does not contain any subject matter that contravenes any laws (including defamatory material and misleading and deceptive material) and
- Meets ethical standards applicable to the research discipline.
They should warrant that the work and all figures, illustrations, photographs, charts, and other supplementary material are original. They declare that this manuscript has not been published elsewhere and submitted, nor will be submitted, to any other publication while consideration by the JMRD. There is no any plagiarism in this manuscript and no part of this manuscript (referenced or otherwise) has been copied verbatim. No one who has contributed significantly to the work has been denied authorship and those who helped have been duly acknowledged. All authors reviewed and approved the content and parts of this manuscript as submitted
This is a license agreement under which you, the author, retain copyright in your article, and grant the Journal of Maize Research and Development (hereinafter ‘the Publisher’) a license to allow the publisher to publish your article, including abstract, tables, figures, data, and supplemental material hosted by our publisher, as the Version of Record (VoR) in the Journal for the full period of copyright throughout the world, in all forms and all media.
Grant of publishing rights
The authors should grant the publisher this exclusive license to publish their article, in all forms and all media (whether known at this time or developed at any time in the future) throughout the world, in all languages, where their rights include but are not limited to the right to translate, create adaptations, extracts, or derivative works and to sublicense such rights, for the full term of copyright (including all renewals and extensions of that term), to take effect if and when the article is accepted for publication. The authors confirm that they have read and accept the full Terms and Conditions below including author warranties, and have read and agree to comply with the Journal’s policies on peer review and publishing ethics.
Click below link to download License to publish form;
Please read this above agreement carefully, complete it, and return a copy to us by email, fax, or hard copy immediately, to avoid any delay in the publication of your article.