Abstract
With the aim of developing crop management technologies that reduce the yield gap of maize (Zea mays L.) in Nepal, a study was carried-out to determine whether the grain yield of maize could be manipulated through tillage, residue, and nutrient and weed management practices. The effect of tillage (conventional and no tillage), residue (residue retained and residue removed), fertilizer (recommended doses of fertilizer and farmers’ doses of fertilizer) and weed management practices (herbicide use and manual weeding) on phenology and grain yield of maize were investigated under maize-rice cropping system in Rampur, Nepal during 2013. The experimental results revealed that no tillage had significant effect on grain yield (6.64 Mg ha-1) and phenological parameters like days to silking, physiological maturity and seed fill duration. Similarly, residue retained treatment had significant effect on grain yield (7.02 Mg ha-1) and phenological parameters. Research dose of fertilizer had significant effect on phenological parameters and grain yield (8.42 Mg ha-1). However, weed management factor did not influence significantly on grain yield and phenological parameters. The grain yield increased in no tillage by 23.19% over conventional tillage, residue retained by 39.84% over residue removed, recommended doses of fertilizer by 132.60% over farmer dose of fertilizer. Thus, no tillage, residue retention, recommended doses of fertilizer and use of herbicide for weed management can be alternative technologies for sustainable higher grain yield. DOI: http://dx.doi.org/10.3126/ijasbt.v2i3.11001Int J Appl Sci Biotechnol, Vol. 2(3): 328-335
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Claims 8
Claim · model-written summary
No tillage increased maize grain yield by 23.19% over conventional tillage.
- Treatment
- no tillagee0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 23.19%e0
- Comparator
- conventional tillagee0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The grain yield increased in no tillage by 23.19% over conventional tillage”
t0“Spring Maize”
Claim · model-written summary
Residue retention increased maize grain yield by 39.84% over residue removal.
- Treatment
- residue retainede0
- Outcome
- grain yielde1
- Direction
- increasede1
- Value
- 39.84%e0
- Comparator
- residue removede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“residue retained by 39.84% over residue removed”
t0“Spring Maize”
e1“The grain yield increased in no tillage by 23.19% over conventional tillage”
Claim · model-written summary
Recommended fertilizer doses increased maize grain yield by 132.60% over farmer doses.
- Treatment
- recommended doses of fertilizere0
- Outcome
- grain yielde1
- Direction
- increasede1
- Value
- 132.60%e0
- Comparator
- farmer dose of fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“recommended doses of fertilizer by 132.60% over farmer dose of fertilizer”
t0“Spring Maize”
e1“The grain yield increased in no tillage by 23.19% over conventional tillage”
Claim · model-written summary
No tillage significantly affected days to silking, physiological maturity and seed fill duration.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no tillage had significant effect on grain yield (6.64 Mg ha-1) and phenological parameters like days to silking, physiological maturity and seed fill duration”
t0“Spring Maize”
Claim · model-written summary
Residue retention significantly affected maize phenological parameters.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“residue retained treatment had significant effect on grain yield (7.02 Mg ha-1) and phenological parameters”
t0“Spring Maize”
Claim · model-written summary
The research fertilizer dose significantly affected maize phenological parameters.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Research dose of fertilizer had significant effect on phenological parameters and grain yield (8.42 Mg ha-1)”
t0“Spring Maize”
Claim · model-written summary
Weed management did not significantly influence maize grain yield or phenological parameters.
- Treatment
- weed management factore0
- Outcome
- grain yield and phenological parameterse0
- Direction
- did not influencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“weed management factor did not influence significantly on grain yield and phenological parameters”
t0“Spring Maize”
Claim · model-written summary
The authors propose no tillage, residue retention, recommended fertilizer and herbicide use for higher sustainable grain yield.
- Outcome
- alternative technologies for sustainable higher grain yielde0
Not reportedTaxon
Verbatim
e0“no tillage, residue retention, recommended doses of fertilizer and use of herbicide for weed management can be alternative technologies for sustainable higher grain yield”
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