Abstract
A field study was conducted to determine the effect of Zinc (Zn) application as well as interactive effect of organic and mineral fertilizer sources of nitrogen (N) on maize productivity and nutrient uptake during 2008 at NARC, Islamabad. Four combinations of N sources, viz. control; 100 % recommended dose of N from Chemical Fertilizer (CF); 75% N from CF + 25% N from Farm Yard Manure (FYM) and 50% N from CF + 50% N from FYM and three levels of Zn fertilizer, viz. 0, 4, 8 kg Zn/ha were applied. Maximum maize grain yield, viz., 5.18 t/ha was obtained with 75% + 25% (CF + FYM) and 4 kg Zn/ha. It was statistically at par with treatment having 50% + 50% (CF + FYM) and 4 kg Zn/ha as well as 75% + 25% and 8 kg Zn/ha. Zinc application also enhanced maize grain yield by 12% over treatment where no Zn was applied i.e. 4.08 t/ha. Highest N uptake, viz., 98.7 kg/ha was observed with 50% + 50% (CF + FYM) and 8 kg Zn/ha application. Similarly, maximum Zn uptake, viz., 250.7 g/ha was observed with 75% + 25 % (CF + FYM) and 4 kg Zn/ha application. The study revealed that substitution of 25 or 50% N with FYM + 4 kg Zn/ha performed better than 100% N fertilizer alone, with respect to leaf area index, grain and straw yield, soil organic matter content and nutrient uptake.
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Claims 6
Claim · model-written summary
The 75% + 25% (CF + FYM) and 4 kg Zn/ha combination gave the maximum maize grain yield of 5.18 t/ha.
- Treatment
- 75% + 25% (CF + FYM) and 4 kg Zn/hae0
- Outcome
- grain yielde0
- Direction
- Maximume0
- Value
- 5.18 t/hae0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maximum maize grain yield, viz., 5.18 t/ha was obtained with 75% + 25% (CF + FYM) and 4 kg Zn/ha”
Claim · model-written summary
Zinc application enhanced maize grain yield by 12% over the treatment with no zinc.
- Treatment
- Zinc applicatione1
- Outcome
- grain yielde1
- Direction
- enhancede1
- Value
- 12%e1
- Qualifier
- 4.08 t/hae1
- Comparator
- treatment where no Zn was appliede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Zinc application also enhanced maize grain yield by 12% over treatment where no Zn was applied i.e. 4.08 t/ha”
Claim · model-written summary
The 50% + 50% (CF + FYM) and 8 kg Zn/ha combination gave the highest N uptake of 98.7 kg/ha.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maximum maize grain yield, viz., 5.18 t/ha was obtained with 75% + 25% (CF + FYM) and 4 kg Zn/ha”
e2“Highest N uptake, viz., 98.7 kg/ha was observed with 50% + 50% (CF + FYM) and 8 kg Zn/ha application”
Claim · model-written summary
The 75% + 25% (CF + FYM) and 4 kg Zn/ha combination gave the maximum Zn uptake of 250.7 g/ha.
- Treatment
- 75% + 25 % (CF + FYM) and 4 kg Zn/hae3
- Outcome
- Zn uptakee3
- Direction
- maximume3
- Value
- 250.7 g/hae3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maximum maize grain yield, viz., 5.18 t/ha was obtained with 75% + 25% (CF + FYM) and 4 kg Zn/ha”
e3“maximum Zn uptake, viz., 250.7 g/ha was observed with 75% + 25 % (CF + FYM) and 4 kg Zn/ha application”
Claim · model-written summary
Substituting 25 or 50% N with FYM + 4 kg Zn/ha performed better than 100% N fertilizer alone for leaf area index, grain and straw yield.
- Treatment
- substitution of 25 or 50% N with FYM + 4 kg Zn/hae4
- Outcome
- leaf area index, grain and straw yielde4
- Direction
- performed bettere4
- Comparator
- 100% N fertilizer alonee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maximum maize grain yield, viz., 5.18 t/ha was obtained with 75% + 25% (CF + FYM) and 4 kg Zn/ha”
e4“The study revealed that substitution of 25 or 50% N with FYM + 4 kg Zn/ha performed better than 100% N fertilizer alone, with respect to leaf area index, grain and straw yield, soil organic matter content and nutrient uptake”
Claim · model-written summary
Substituting 25 or 50% N with FYM + 4 kg Zn/ha performed better than 100% N fertilizer alone for soil organic matter content and nutrient uptake.
- Treatment
- substitution of 25 or 50% N with FYM + 4 kg Zn/hae4
- Outcome
- soil organic matter content and nutrient uptakee4
- Direction
- performed bettere4
- Comparator
- 100% N fertilizer alonee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maximum maize grain yield, viz., 5.18 t/ha was obtained with 75% + 25% (CF + FYM) and 4 kg Zn/ha”
e4“The study revealed that substitution of 25 or 50% N with FYM + 4 kg Zn/ha performed better than 100% N fertilizer alone, with respect to leaf area index, grain and straw yield, soil organic matter content and nutrient uptake”
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