Abstract
The objective of current investigation is to study direct and residual effects of Zn application on Zn fractions and availability in soil, yield and Zn uptake in tomato - french bean - cucumber system. One year field experiments were conducted during 2018-2019 in soil with DTPA extractable Zn of 0.88 mg kg-1. Treatments were one time soil application of 5, 10, 15 and 20 kg Zn ha-1 through ZnSO4.7H2O as basal dose only to tomato; foliar application of 0.5% ZnSO4.7H2O (two times 45 and 60 days after planting in each crop) and control (where Zn fertilization was not done). Crop yield was recorded and DTPA-Zn and Znfractions in soil were analyzed. Soil application of Zn had enhanced soil DTPA-Zn, total Zn content of soil, fruit and dry matter yields, however, beyond 10 kg ha-1 Zn application, significant yield improvement was not recorded. Soil Zn application increased Zn concentration and uptake. Foliar Zn spray did not show any significant change in yield and Zn uptake. Exchangeable-Zn and Zn associated with easily reducible Mn fractions of soil were largely contributed to Zn availability in soil and uptake. Soil application of 10 kg Zn ha-1 yr-1 is recommended in low Zn soils for enhancing productivity of vegetable systems with three crops raised in a year in sequence. However, when soil DTPA-Zn reaches 1.5 mg kg-1, the need based application of Zn to soil can be avoided because no yield response was found beyond this level.
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Claims 8
Claim · model-written summary
Soil application of Zn enhanced soil DTPA-Zn and total Zn content of soil compared with the control in the tomato-french bean-cucumber sequence.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- Soil application of Zne2
- Outcome
- soil DTPA-Zn, total Zn content of soile2
- Direction
- enhancede2
- Comparator
- control (where Zn fertilization was not done)e1
- Setting
- field experimentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato-french bean-cucumber cropping sequence”
e0“One year field experiments were conducted during 2018-2019 in soil”
e1“and control (where Zn fertilization was not done)”
e2“Soil application of Zn had enhanced soil DTPA-Zn, total Zn content of soil, fruit and dry matter yields”
Claim · model-written summary
Soil application of Zn enhanced fruit and dry matter yields compared with the control in the tomato-french bean-cucumber sequence.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Soil application of Zne2
- Outcome
- fruit and dry matter yieldse2
- Direction
- enhancede2
- Comparator
- control (where Zn fertilization was not done)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato-french bean-cucumber cropping sequence”
e1“and control (where Zn fertilization was not done)”
e2“Soil application of Zn had enhanced soil DTPA-Zn, total Zn content of soil, fruit and dry matter yields”
Claim · model-written summary
Zn application beyond 10 kg ha-1 did not significantly improve yield in the tomato-french bean-cucumber sequence.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- beyond 10 kg ha-1 Zn applicatione3
- Outcome
- yield improvemente3
- Comparator
- 10 kg ha-1e3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato-french bean-cucumber cropping sequence”
e3“beyond 10 kg ha-1 Zn application, significant yield improvement was not recorded”
Claim · model-written summary
Soil Zn application increased Zn concentration and uptake compared with the control in the tomato-french bean-cucumber sequence.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Soil Zn applicatione4
- Outcome
- Zn concentration and uptakee4
- Direction
- increasede4
- Comparator
- control (where Zn fertilization was not done)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato-french bean-cucumber cropping sequence”
e1“and control (where Zn fertilization was not done)”
e4“Soil Zn application increased Zn concentration and uptake”
Claim · model-written summary
Foliar Zn spray did not significantly change yield or Zn uptake in the tomato-french bean-cucumber sequence.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- foliar application of 0.5% ZnSO4.7H2Oe6
- Outcome
- yield and Zn uptakee5
- Direction
- did not show any significant changee5
- Comparator
- control (where Zn fertilization was not done)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato-french bean-cucumber cropping sequence”
e1“and control (where Zn fertilization was not done)”
e5“Foliar Zn spray did not show any significant change in yield and Zn uptake”
e6“foliar application of 0.5% ZnSO4.7H2O”
Claim · model-written summary
Exchangeable Zn and Zn associated with easily reducible Mn fractions of soil largely contributed to soil Zn availability and uptake in the tomato sequence.
- Taxon
- tomatoSolanum lycopersicumt0
- Compound
- Exchangeable-Zne7
- Outcome
- Zn availability in soil and uptakee7
- Qualifier
- Zn associated with easily reducible Mn fractionse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato-french bean-cucumber cropping sequence”
e7“Exchangeable-Zn and Zn associated with easily reducible Mn fractions of soil were largely contributed to Zn availability in soil and uptake”
Claim · model-written summary
Soil application of 10 kg Zn ha-1 yr-1 is recommended in low Zn soils for enhancing productivity of vegetable systems with three crops a year.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Soil application of 10 kg Zn ha-1 yr-1e1
- Outcome
- productivity of vegetable systemse1
- Setting
- low Zn soilse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato-french bean-cucumber cropping sequence”
e1“Soil application of 10 kg Zn ha-1 yr-1 is recommended in low Zn soils for enhancing productivity of vegetable systems with three crops raised in a year in sequence”
Claim · model-written summary
Need-based soil Zn application can be avoided when soil DTPA-Zn reaches 1.5 mg kg-1, because no yield response was found beyond this level.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- need based application of Zn to soil can be avoidede1
- Value
- 1.5 mg kg-1e1
- Qualifier
- when soil DTPA-Zn reaches 1.5 mg kg-1e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato-french bean-cucumber cropping sequence”
e1“when soil DTPA-Zn reaches 1.5 mg kg-1, the need based application of Zn to soil can be avoided because no yield response was found beyond this level”
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