Abstract
Appropriate fertilization practices based on actual limiting nutrients and crop requirement for a given crop is economic and judicious use of fertilizers for sustainable crop production. In view of this, a study was conducted at Kejo and Ongobo farmers’ fields, located at GobuSeyo District of East Wollega Zone of Oromia region in 2011 to evaluate the effects of blended fertilizers for maize production. The five treatments used for the field experiment were control (without fertilizer), recommended NP, recommended NP + Cu + Zn, blended fertilizer and blended fertilizer + Cu+ Zn. The treatments were laid out in RCBD design with four replications. The results of the study revealed that the analysis of variance among fertilizers types showed significant differences (P ≤ 0.05) on almost all the maize characters tested. However, applied Cu and Zn to either of the recommended NP fertilizers or blended fertilizer showed no significant difference on maize agronomic characters and yield except leaf area. The shortest mean days to 50% tasseling (85.25), silking (87.25) and maturity (154.25) of maize were obtained from blended fertilizers with Cu and Zn, whereas the longest days were recorded for the control plot. The maximum mean grain yield (8399.7 kg ha-1), stover yield (8553.1 kg ha-1) and total biomass yield (16867.7 kg ha-1) were recorded for blended fertilizers with Cu and Zn, whereas the lowest mean grain yield (2824.8 kg ha-1) were recorded for control. Blended fertilizers had improved grain nutrient uptakes and agronomic efficiency of maize. It was also apparent that much of the nutrients applied were assimilated by the grain than that achieved by the stover. The result of the study showed that blended fertilizers increased maize productivity compared to the previously existing NP fertilizers in the country and appropriate fertilization practices can improve the current situation.
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Claims 11
Claim · model-written summary
Fertilizer types differed significantly for almost all tested maize characters.
Zea maysNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“analysis of variance among fertilizers types showed significant differences (P ≤ 0.05) on almost all the maize characters tested”
t0“Maize”
Claim · model-written summary
Adding Cu and Zn did not significantly change maize agronomic characters or yield except leaf area.
- Treatment
- Cu and Zne0
- Outcome
- maize agronomic characters and yielde0
- Direction
- no significant differencee0
- Comparator
- recommended NP fertilizers or blended fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applied Cu and Zn to either of the recommended NP fertilizers or blended fertilizer showed no significant difference on maize agronomic characters and yield except leaf area”
t0“Maize”
Claim · model-written summary
Blended fertilizer with Cu and Zn gave the shortest time to 50% tasseling, 85.25 days.
- Treatment
- blended fertilizers with Cu and Zne0
- Outcome
- days to 50% tasselinge0
- Direction
- shorteste0
- Value
- 85.25e0
- Comparator
- control plote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“shortest mean days to 50% tasseling (85.25), silking (87.25) and maturity (154.25) of maize were obtained from blended fertilizers with Cu and Zn, whereas the longest days were recorded for the control plot”
Claim · model-written summary
Blended fertilizer with Cu and Zn gave the shortest time to silking, 87.25 days.
- Treatment
- blended fertilizers with Cu and Zne0
- Outcome
- silkinge0
- Direction
- shorteste0
- Value
- 87.25e0
- Comparator
- control plote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“shortest mean days to 50% tasseling (85.25), silking (87.25) and maturity (154.25) of maize were obtained from blended fertilizers with Cu and Zn, whereas the longest days were recorded for the control plot”
Claim · model-written summary
Blended fertilizer with Cu and Zn gave the shortest time to maturity, 154.25 days.
- Treatment
- blended fertilizers with Cu and Zne0
- Outcome
- maturitye0
- Direction
- shorteste0
- Value
- 154.25e0
- Comparator
- control plote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“shortest mean days to 50% tasseling (85.25), silking (87.25) and maturity (154.25) of maize were obtained from blended fertilizers with Cu and Zn, whereas the longest days were recorded for the control plot”
Claim · model-written summary
Blended fertilizer with Cu and Zn gave maximum grain yield of 8399.7 kg ha-1.
- Treatment
- blended fertilizers with Cu and Zne0
- Outcome
- grain yielde0
- Direction
- maximume0
- Value
- 8399.7 kg ha-1e0
- Qualifier
- 2824.8 kg ha-1e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum mean grain yield (8399.7 kg ha-1), stover yield (8553.1 kg ha-1) and total biomass yield (16867.7 kg ha-1) were recorded for blended fertilizers with Cu and Zn, whereas the lowest mean grain yield (2824.8 kg ha-1) were recorded for control”
t0“Maize”
Claim · model-written summary
Blended fertilizer with Cu and Zn gave maximum stover yield of 8553.1 kg ha-1.
- Treatment
- blended fertilizers with Cu and Zne0
- Outcome
- stover yielde0
- Direction
- maximume0
- Value
- 8553.1 kg ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum mean grain yield (8399.7 kg ha-1), stover yield (8553.1 kg ha-1) and total biomass yield (16867.7 kg ha-1) were recorded for blended fertilizers with Cu and Zn”
t0“Maize”
Claim · model-written summary
Blended fertilizer with Cu and Zn gave maximum total biomass yield of 16867.7 kg ha-1.
- Treatment
- blended fertilizers with Cu and Zne0
- Outcome
- total biomass yielde0
- Direction
- maximume0
- Value
- 16867.7 kg ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum mean grain yield (8399.7 kg ha-1), stover yield (8553.1 kg ha-1) and total biomass yield (16867.7 kg ha-1) were recorded for blended fertilizers with Cu and Zn”
t0“Maize”
Claim · model-written summary
Blended fertilizers improved grain nutrient uptake and agronomic efficiency.
- Treatment
- Blended fertilizerse0
- Outcome
- grain nutrient uptakes and agronomic efficiencye0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Blended fertilizers had improved grain nutrient uptakes and agronomic efficiency of maize”
Claim · model-written summary
More applied nutrients were assimilated by grain than stover.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“much of the nutrients applied were assimilated by the grain than that achieved by the stover”
t0“Maize”
Claim · model-written summary
Blended fertilizers increased maize productivity relative to existing NP fertilizers.
- Treatment
- blended fertilizerse0
- Outcome
- maize productivitye0
- Direction
- increasede0
- Comparator
- previously existing NP fertilizerse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“blended fertilizers increased maize productivity compared to the previously existing NP fertilizers”
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