Abstract
The long-term effect of 87.3 kg/ha P on the yield elements and nutrient content of maize was studied at the National Long-Term Fertilization Experiment of the Karcag Research Institute in Hungary. The soil of the experiment site is non-calcareous Luvic Phaeosem, and its soluble phosphorus (P) and zinc (Zn) content in 0-20 cm soil layer are: ammonium lactate P: 141.1 mg/kg and diethylene triamine pentaacetic acid (DTPA)Zn: 0.85 mg/kg, respectively. The effect of foliar Zn fertilization was studied at three levels of nitrogen (150, 200 and 250 kg/ha) and under 87.3 kg/ha P and 82.6 kg/ha K application in four replications. The applied Zn amount was 700 g/ha. We measured the grain yield and the thousand-kernel weight. Leaf and grain samples were analyzed for phosphorus, zinc, potassium, calcium, magnesium and manganese content. Foliar Zn application did not increase the yield significantly, but it enhanced the thousand-kernel weight. The element content did not change significantly - neither in leaves nor in kernels. Under the examined habitat circumstances even the long-term application of 87.3 kg/ha P dosage did not cause Zn deficiency to such an extent which would lead to significant yield depression of maize.
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Claims 4
Claim · model-written summary
Foliar zinc did not significantly increase maize grain yield.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar Zn application did not increase the yield significantly”
t0“maize”
Claim · model-written summary
Foliar zinc increased maize thousand-kernel weight.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it enhanced the thousand-kernel weight”
e1“Foliar Zn application did not increase the yield significantly”
t0“maize”
Claim · model-written summary
Foliar zinc did not significantly change mineral content in leaves or kernels.
- Organ / stage
- leaves nor in kernelse0
- Treatment
- Foliar Zn applicatione1
- Outcome
- element contente0
- Direction
- did not changee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The element content did not change significantly - neither in leaves nor in kernels”
e1“Foliar Zn application did not increase the yield significantly”
t0“maize”
Claim · model-written summary
Under the studied conditions, long-term phosphorus application did not produce zinc deficiency sufficient to significantly depress maize yield.
- Treatment
- long-term application of 87.3 kg/ha P dosagee0
- Outcome
- yield depression of maizee0
- Direction
- did not causee0
- Qualifier
- Under the examined habitat circumstancese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under the examined habitat circumstances even the long-term application of 87.3 kg/ha P dosage did not cause Zn deficiency to such an extent which would lead to significant yield depression of maize”
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