Abstract
Abstract A greenhouse study with rice Var. ‘Sena’ in two soils, black clay soil and saline sodic soil, indicated pronounced effect of Fe and Zn application on yield and concentration and uptake of these nutrients in plants at 30 and 60 days after transplanting and grain and straw at maturity. The yield and uptake of Fe and Zn increased considerably with the optimum supply of the respective nutrients in the soils. Mutual antagonism was observed between Fe and Zn mainly in respect to the concentration of these nutrients in plant, grain and straw and their availability in soil. Though the application of Fe and Zn to the soil decreased the concentration of each other in the plant by interfering in absorption and translocation of the other nutrient, still the uptake of these nutrients increased. Better yield and growth of rice with Fe and Zn fertilization is associated with higher uptake of nutrients. Uptake of Fe and Zn increased with the advancanent in growth. The yield and uptake of Fe and Zn without Fe and Zn application was always less than the yield and uptake recorded for Fe and Zn treated plants but untreated plants absorbed and translocated more Fe and Zn with the advancement in age and thus the growth was improved. This may explain why deficiency symptoms observed during early stages of crop growth sometimes disappear during later stages. A significant effect of moisture regime was also observed on the yield and concentration and uptake of Fe and Zn by the crop. The yield and uptake of Fe and Zn under flooded conditions was much higher than with unflooded conditions. Iron content in plants was considerably higher under flooded conditions while the Zn content was higher under unf looded conditions. The availability of Fe and Zn in soil was also studied and an antagonistic relationship between Fe and Zn was observed. The availability of Fe in soil was higher and the availability of Zn was lower under flooded conditions as compared to unflooded conditions. These effects are of great practical importance in fertilization practices and the interaction between micronutrients in plant nutrition.
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Claims 12
Claim · model-written summary
Optimum Fe and Zn supply increased rice yield and uptake of both nutrients.
- Taxon
- rice
Oryza sativat0 - Treatment
- optimum supply of the respective nutrientse0
- Outcome
- yield and uptake of Fe and Zne0
- Direction
- increased considerablye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yield and uptake of Fe and Zn increased considerably with the optimum supply of the respective nutrients in the soils.”
t0“Rice”
Claim · model-written summary
Fe and Zn mutually antagonized their concentrations in plant tissues and availability in soil.
- Taxon
- riceOryza sativat0
- Compound
- Fe and Zne0
- Outcome
- concentration of these nutrients in plant, grain and straw and their availability in soile0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mutual antagonism was observed between Fe and Zn mainly in respect to the concentration of these nutrients in plant, grain and straw and their availability in soil.”
t0“Rice”
Claim · model-written summary
Applying Fe and Zn reduced each other’s plant concentration.
- Taxon
- riceOryza sativat0
- Treatment
- application of Fe and Zn to the soile0
- Outcome
- concentration of each other in the plante0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of Fe and Zn to the soil decreased the concentration of each other in the plant”
t0“Rice”
Claim · model-written summary
Despite the concentration decrease, nutrient uptake increased with Fe and Zn application.
- Taxon
- riceOryza sativat0
- Treatment
- application of Fe and Zn to the soile0
- Outcome
- uptake of these nutrientse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Though the application of Fe and Zn to the soil decreased the concentration of each other in the plant by interfering in absorption and translocation of the other nutrient, still the uptake of these nutrients increased”
t0“Rice”
Claim · model-written summary
Fe and Zn uptake increased as rice grew.
- Taxon
- riceOryza sativat0
- Organ / stage
- advancanent in growthe0
- Outcome
- Uptake of Fe and Zne0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Uptake of Fe and Zn increased with the advancanent in growth.”
t0“Rice”
Claim · model-written summary
Untreated rice had lower yield and Fe and Zn uptake than treated rice.
- Taxon
- riceOryza sativat0
- Treatment
- without Fe and Zn applicatione0
- Outcome
- yield and uptake of Fe and Zne0
- Direction
- less thane0
- Comparator
- Fe and Zn treated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yield and uptake of Fe and Zn without Fe and Zn application was always less than the yield and uptake recorded for Fe and Zn treated plants”
t0“Rice”
Claim · model-written summary
Untreated plants absorbed and translocated more Fe and Zn with age.
- Taxon
- riceOryza sativat0
- Organ / stage
- advancement in agee0
- Outcome
- absorbed and translocated more Fe and Zne0
- Direction
- moree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“untreated plants absorbed and translocated more Fe and Zn with the advancement in age and thus the growth was improved”
t0“Rice”
Claim · model-written summary
Flooding produced much higher rice yield and Fe and Zn uptake than unflooded conditions.
- Taxon
- riceOryza sativat0
- Treatment
- flooded conditionse0
- Outcome
- yield and uptake of Fe and Zne0
- Direction
- much highere0
- Comparator
- unflooded conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yield and uptake of Fe and Zn under flooded conditions was much higher than with unflooded conditions.”
t0“Rice”
Claim · model-written summary
Plant iron content was higher under flooded conditions.
- Taxon
- riceOryza sativat0
- Treatment
- flooded conditionse0
- Outcome
- Iron content in plantse0
- Direction
- considerably highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Iron content in plants was considerably higher under flooded conditions”
t0“Rice”
Claim · model-written summary
Plant Zn content was higher under unflooded conditions.
- Taxon
- riceOryza sativat0
- Treatment
- unf looded conditionse0
- Outcome
- Zn contente0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the Zn content was higher under unf looded conditions”
t0“Rice”
Claim · model-written summary
Soil Fe availability was higher under flooded than unflooded conditions.
- Taxon
- riceOryza sativat0
- Treatment
- flooded conditionse0
- Outcome
- availability of Fe in soile0
- Direction
- highere0
- Comparator
- unflooded conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The availability of Fe in soil was higher and the availability of Zn was lower under flooded conditions as compared to unflooded conditions.”
t0“Rice”
Claim · model-written summary
Soil Zn availability was lower under flooded than unflooded conditions.
- Taxon
- riceOryza sativat0
- Treatment
- flooded conditionse0
- Outcome
- availability of Zne0
- Direction
- lowere0
- Comparator
- unflooded conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The availability of Fe in soil was higher and the availability of Zn was lower under flooded conditions as compared to unflooded conditions.”
t0“Rice”
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