Abstract
A three year field study was conducted on the same field in 2006, 2007 and 2008 rainy seasons at the experimental farm of Institute for Agricultural Research (I.A.R.), Ahmadu Bello University, Zaria- Nigeria (Lat. 11o 11’ N: Long 7o 38’ E: 686 m above sea level) to determined the effect of tillage system and nitrogen level on the growth of Oba 98 maize variety. The treatment laid out in split plot design consisted of six tillage practices (harrowing followed by weeding, harrowing followed by primextra Gold, paraquat followed by primextra Gold, glyphosate followed by primextra Gold, ridging followed by weeding and ridging followed by primextra Gold followed by weeding) as the main plots while nitrogen level (0, 50, 100 and 150kgNha-1) were assigned to sub plots. The results showed significant response of growth parameters and cob weight to some tillage systems. Glyphosate followed by primextra Gold significantly increased plant height, leaf area index, crop growth rate, relative growth rate and days to 50% tasseling. Paraquat followed by primextra Gold significantly increased plant height, harrowing followed by weeding significantly increased leaf area index, cob weight were significantly affected by paraquat followed by primextra Gold and glyphosate followed by primextra Gold. Nitrogen application significantly increased growth components such as plant height up to 100kgNha-1, leaf area index up 50kgNha-1, crop growth rate up to 100 kgNha-1, relative growth rate up to 50kgNha-1, number of days to 50% tasseling up to 150kgNha-1 and cob weight 100 kgNha-1
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Claims 11
Claim · model-written summary
Glyphosate followed by primextra Gold increased plant height, leaf area index and crop growth rate of maize.
- Material
- Oba 98e0
- Treatment
- Glyphosate followed by primextra Golde1
- Outcome
- plant height, leaf area index, crop growth ratee1
- Direction
- increasede1
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determined the effect of tillage system and nitrogen level on the growth of Oba 98 maize variety”
e1“Glyphosate followed by primextra Gold significantly increased plant height, leaf area index, crop growth rate, relative growth rate and days to 50% tasseling”
Claim · model-written summary
Glyphosate followed by primextra Gold increased relative growth rate and days to 50% tasseling of maize.
- Material
- Oba 98e0
- Treatment
- Glyphosate followed by primextra Golde1
- Outcome
- relative growth rate and days to 50% tasselinge1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determined the effect of tillage system and nitrogen level on the growth of Oba 98 maize variety”
e1“Glyphosate followed by primextra Gold significantly increased plant height, leaf area index, crop growth rate, relative growth rate and days to 50% tasseling”
Claim · model-written summary
Paraquat followed by primextra Gold increased plant height of maize.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determined the effect of tillage system and nitrogen level on the growth of Oba 98 maize variety”
e2“Paraquat followed by primextra Gold significantly increased plant height”
Claim · model-written summary
Harrowing followed by weeding increased leaf area index of maize.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determined the effect of tillage system and nitrogen level on the growth of Oba 98 maize variety”
e3“harrowing followed by weeding significantly increased leaf area index”
Claim · model-written summary
Paraquat and glyphosate followed by primextra Gold significantly affected cob weight of maize.
- Treatment
- paraquat followed by primextra Gold and glyphosate followed by primextra Golde4
- Outcome
- cob weighte4
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determined the effect of tillage system and nitrogen level on the growth of Oba 98 maize variety”
e4“cob weight were significantly affected by paraquat followed by primextra Gold and glyphosate followed by primextra Gold”
Claim · model-written summary
Nitrogen application increased plant height of maize up to 100 kg N per hectare.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determined the effect of tillage system and nitrogen level on the growth of Oba 98 maize variety”
e5“Nitrogen application significantly increased growth components such as plant height up to 100kgNha-1”
Claim · model-written summary
Nitrogen application increased leaf area index of maize up to 50 kg N per hectare.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determined the effect of tillage system and nitrogen level on the growth of Oba 98 maize variety”
e5“Nitrogen application significantly increased growth components such as plant height up to 100kgNha-1”
e6“leaf area index up 50kgNha-1”
Claim · model-written summary
Nitrogen application increased crop growth rate of maize up to 100 kg N per hectare.
- Treatment
- Nitrogen applicatione5
- Outcome
- crop growth ratee7
- Direction
- increasede5
- Qualifier
- up to 100 kgNha-1e7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determined the effect of tillage system and nitrogen level on the growth of Oba 98 maize variety”
e5“Nitrogen application significantly increased growth components such as plant height up to 100kgNha-1”
e7“crop growth rate up to 100 kgNha-1”
Claim · model-written summary
Nitrogen application increased relative growth rate of maize up to 50 kg N per hectare.
- Treatment
- Nitrogen applicatione5
- Outcome
- relative growth ratee6
- Direction
- increasede5
- Qualifier
- up to 50kgNha-1e6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determined the effect of tillage system and nitrogen level on the growth of Oba 98 maize variety”
e5“Nitrogen application significantly increased growth components such as plant height up to 100kgNha-1”
e6“relative growth rate up to 50kgNha-1”
Claim · model-written summary
Nitrogen application increased the number of days to 50% tasseling of maize up to 150 kg N per hectare.
- Treatment
- Nitrogen applicatione5
- Outcome
- number of days to 50% tasselinge7
- Direction
- increasede5
- Qualifier
- up to 150kgNha-1e7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determined the effect of tillage system and nitrogen level on the growth of Oba 98 maize variety”
e5“Nitrogen application significantly increased growth components such as plant height up to 100kgNha-1”
e7“number of days to 50% tasseling up to 150kgNha-1”
Claim · model-written summary
Nitrogen application increased cob weight of maize at 100 kg N per hectare.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determined the effect of tillage system and nitrogen level on the growth of Oba 98 maize variety”
e5“Nitrogen application significantly increased growth components such as plant height up to 100kgNha-1”
e4“cob weight 100 kgNha-1”
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