Abstract
BACKGROUND: Since several decades ago, many attempts have been made to increase crop production. Use of chemical fertilizers is one of these strategies that have increased crop production and fertilizers management is a necessary strategy for achieving sustainable agriculture. OBJECTIVES: Current study was done to soil application, use in irrigation water, and foliar application of Fe and Zn on grain yield and their absorption in maize of Dezful city. METHODS: A split plot experiment was conducted with the main factor in randomized complete block design to study various application methods of iron and zinc chelates on SC701 hybrid maize, and the extent of which they can be absorbed by plant in two years. The main plot treatment was fertilizer application methods (FAM) including soil application (SA), foliar application (FA) and use in irrigation water (IW). The subplot treatment was type of fertilizer used (TFU) including iron chelate (IC), zinc chelate (ZC), and control treatments (CT). Traits like plant height, 1000-grain weight, grain yield, number of grains per row, plant iron and zinc contents, and grain protein percentage were measured in the experimental and control treatments. RESULT: According result of ANOVA for Main factor FAM indicated that there were significant differences only on plant height at a probability level of 99%. For the subplot factor TFU except for grain raw protein content, had significant effects on plant height with probability level of 95% and on 1000-grain weight, grain yield, and plant iron and zinc contents with probability level of 99%. The highest iron content in the plant was obtained in the treatment SA, IC in the first and second year 30.25 and 38 mg.kg-1 respectively and the highest amount of zinc, in the SA, ZC in the second year was 33.25 mg.kg-1, 1000-grain weight FA, IC was 385 g and grain yield in the treatment of FA, ZC was obtained 5.22 kg.ha-1. CONCLUSION: The highest effect of fertilization was in the treatment FA, ZC amount of 163.33 compared to the control in the second year. The results showed that the addition of iron and zinc fertilizer in the soil due to time consuming, is absorbed at the end of plant growth time, which in turn will not increase the 1000-seed weight and grain yield.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 10
Claim · model-written summary
Application method significantly affected maize plant height.
Zea maysNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Main factor FAM indicated that there were significant differences only on plant height at a probability level of 99%”
e1“maize of Dezful city”
Claim · model-written summary
Fertilizer type significantly affected maize plant height.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“subplot factor TFU except for grain raw protein content, had significant effects on plant height with probability level of 95%”
e1“maize of Dezful city”
Claim · model-written summary
Fertilizer type significantly affected maize 1000-grain weight and grain yield.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1000-grain weight, grain yield, and plant iron and zinc contents with probability level of 99%”
e1“subplot factor TFU except for grain raw protein content, had significant effects”
e2“maize of Dezful city”
Claim · model-written summary
Fertilizer type significantly affected maize iron and zinc contents.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant iron and zinc contents with probability level of 99%”
e1“subplot factor TFU except for grain raw protein content, had significant effects”
e2“maize of Dezful city”
Claim · model-written summary
Soil application of iron chelate yielded the highest maize iron content, 30.25 and 38 mg.kg-1 in successive years.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest iron content in the plant was obtained in the treatment SA, IC in the first and second year 30.25 and 38 mg.kg-1 respectively”
e1“maize of Dezful city”
Claim · model-written summary
Soil application of zinc chelate yielded the highest maize zinc content, 33.25 mg.kg-1 in year two.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest amount of zinc, in the SA, ZC in the second year was 33.25 mg.kg-1”
e1“maize of Dezful city”
Claim · model-written summary
Foliar iron chelate treatment produced 385 g maize 1000-grain weight.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1000-grain weight FA, IC was 385 g”
e1“maize of Dezful city”
Claim · model-written summary
Foliar zinc chelate treatment produced maize grain yield of 5.22 kg.ha-1.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yield in the treatment of FA, ZC was obtained 5.22 kg.ha-1”
e1“maize of Dezful city”
Claim · model-written summary
Foliar zinc chelate had the highest reported fertilization effect, 163.33 versus control in year two.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest effect of fertilization was in the treatment FA, ZC amount of 163.33 compared to the control in the second year”
e1“maize of Dezful city”
Claim · model-written summary
The authors concluded that soil iron and zinc fertilizer is absorbed late and does not increase grain weight or yield.
- Treatment
- addition of iron and zinc fertilizer in the soile0
- Outcome
- will not increase the 1000-seed weight and grain yielde0
- Qualifier
- absorbed at the end of plant growth timee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“addition of iron and zinc fertilizer in the soil due to time consuming, is absorbed at the end of plant growth time, which in turn will not increase the 1000-seed weight and grain yield”
e1“maize of Dezful city”
The same questions in other papers
zinc atom · nutrient: content · Zea mays (maize)Results differ
198 papers in the same direction as this paper · 33 in the opposite direction · 3 reporting no difference from an alternative
- no effect
- negative
- negative
231 papers more in this group
See all 235 papers →zinc atom · yield · Zea mays (maize)Results differ
390 papers in the same direction as this paper · 47 in the opposite direction · 3 reporting no difference from an alternative
- negative
- negative
- no effect
437 papers more in this group
See all 441 papers →iron chelate · yield · Zea mays (maize)Results agree
2 papers in the same direction as this paper
- positive
- positive
salicylic acid · nutrient: content · Zea mays (maize)Results agree
14 papers in the same direction as this paper
- positive
- positive
- positive
11 papers more in this group
See all 15 papers →application · yield · Zea mays (maize)Positive and negative results
574 papers in the same direction as this paper · 42 in the opposite direction · 12 reporting no difference from an alternative
- no effect
- no effect
- negative
625 papers more in this group
See all 629 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.