Abstract
Abstract This work describes the effects of a poultry manure and a compost (prepared from olive mill and cotton wastes) on soil conditions and plant nutrient status and growth in a saline soil from Mediterranean Spain, having an electrical conductivity for a 1:5 aqueous extract of 1.51 dS m−1. Two Brassica spp. (B. carinata A. Br. and B. oleracea L.) were selected from a hydroponic screening with two salinity levels, in which the greater tolerance of B. oleracea seemed to be related to maintenance of shoot K+ and restriction of Na+ and Cl−, behavior shown also by B. carinata at the lower salinity level. Brassica carinata and B. oleracea were grown in the soil after incorporation of the organic materials. The amendments increased the cation exchange capacity of the soil and the concentrations of exchangeable K+ and Mg2+. A significant proportion of the K+ added by the amendments was retained in the exchange complex. The equilibrium between soluble and exchangeable K+ tended toward the exchangeable forms, whereas Na+ remained mainly in the soil solution. Addition of manure significantly increased shoot growth for both Brassica species, while compost markedly improved B. oleracea shoot growth. These effects may have been related to increased shoot tissue K+:Na+ ratios and total phosphorus (P) concentrations, reflecting the K+ and P contents of the amendments. When tomato (Lycopersicon esculentum Mill.) was grown in the amended soils used for B. oleracea, its growth was not significantly greater than in the control. Although the organic amendments raised the water-extractable boron (B) concentration of the soil, plant tissue B concentrations were unaffected, possibly due to the elevated concentration of soluble in the soil.
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Claims 13
Claim · model-written summary
The greater salt tolerance of B. oleracea seemed to be related to maintained shoot K+ and restricted Na+ and Cl- in the hydroponic screening.
- Taxon
- B. oleracea
Brassica oleraceae0e1 - Compound
- K+e1
- Outcome
- tolerancee1
- Direction
- greatere1
- Setting
- hydroponic screeninge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two Brassica spp. (B. carinata A. Br. and B. oleracea L.) were selected from a hydroponic screening with two salinity levels”
e1“the greater tolerance of B. oleracea seemed to be related to maintenance of shoot K+ and restriction of Na+ and Cl−, behavior shown also by B. carinata at the lower salinity level”
Claim · model-written summary
B. carinata showed maintained shoot K+ and restricted Na+ and Cl- at the lower salinity level in the hydroponic screening.
- Taxon
- B. carinata
Brassica carinatae0e1 - Outcome
- maintenance of shoot K+ and restriction of Na+ and Cl−e1
- Qualifier
- at the lower salinity levele1
- Setting
- hydroponic screeninge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two Brassica spp. (B. carinata A. Br. and B. oleracea L.) were selected from a hydroponic screening with two salinity levels”
e1“the greater tolerance of B. oleracea seemed to be related to maintenance of shoot K+ and restriction of Na+ and Cl−, behavior shown also by B. carinata at the lower salinity level”
Claim · model-written summary
The organic amendments increased the cation exchange capacity of the soil and the concentrations of exchangeable K+ and Mg2+.
- Treatment
- amendmentse2
- Outcome
- cation exchange capacity of the soil and the concentrations of exchangeable K+ and Mg2+e2
- Direction
- increasede2
BrassicaNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two Brassica spp. (B. carinata A. Br. and B. oleracea L.) were selected from a hydroponic screening with two salinity levels”
e2“The amendments increased the cation exchange capacity of the soil and the concentrations of exchangeable K+ and Mg2+”
Claim · model-written summary
A significant proportion of the K+ added by the amendments was retained in the exchange complex.
- Treatment
- the amendmentse3
- Outcome
- proportion of the K+ added by the amendments was retained in the exchange complexe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two Brassica spp. (B. carinata A. Br. and B. oleracea L.) were selected from a hydroponic screening with two salinity levels”
e3“A significant proportion of the K+ added by the amendments was retained in the exchange complex”
Claim · model-written summary
The equilibrium between soluble and exchangeable K+ tended toward the exchangeable forms in the amended soil.
- Outcome
- equilibrium between soluble and exchangeable K+e4
- Direction
- tended toward the exchangeable formse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two Brassica spp. (B. carinata A. Br. and B. oleracea L.) were selected from a hydroponic screening with two salinity levels”
e4“The equilibrium between soluble and exchangeable K+ tended toward the exchangeable forms, whereas Na+ remained mainly in the soil solution”
Claim · model-written summary
Na+ remained mainly in the soil solution in the amended soil.
- Outcome
- Na+ remained mainly in the soil solutione4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two Brassica spp. (B. carinata A. Br. and B. oleracea L.) were selected from a hydroponic screening with two salinity levels”
e4“The equilibrium between soluble and exchangeable K+ tended toward the exchangeable forms, whereas Na+ remained mainly in the soil solution”
Claim · model-written summary
Addition of manure significantly increased shoot growth of B. carinata.
- Taxon
- B. carinataBrassica carinatae0
- Treatment
- Addition of manuree5
- Outcome
- shoot growthe5
- Direction
- increasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two Brassica spp. (B. carinata A. Br. and B. oleracea L.) were selected from a hydroponic screening with two salinity levels”
e5“Addition of manure significantly increased shoot growth for both Brassica species, while compost markedly improved B. oleracea shoot growth”
Claim · model-written summary
Addition of manure significantly increased shoot growth of B. oleracea.
- Taxon
- B. oleraceaBrassica oleraceae0
- Treatment
- Addition of manuree5
- Outcome
- shoot growthe5
- Direction
- increasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two Brassica spp. (B. carinata A. Br. and B. oleracea L.) were selected from a hydroponic screening with two salinity levels”
e5“Addition of manure significantly increased shoot growth for both Brassica species, while compost markedly improved B. oleracea shoot growth”
Claim · model-written summary
Compost markedly improved shoot growth of B. oleracea.
- Taxon
- B. oleraceaBrassica oleraceae0
- Treatment
- composte5
- Outcome
- shoot growthe5
- Direction
- markedly improvede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two Brassica spp. (B. carinata A. Br. and B. oleracea L.) were selected from a hydroponic screening with two salinity levels”
e5“Addition of manure significantly increased shoot growth for both Brassica species, while compost markedly improved B. oleracea shoot growth”
Claim · model-written summary
The manure and compost effects on shoot growth may be related to increased shoot tissue K+:Na+ ratios and total phosphorus concentrations.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two Brassica spp. (B. carinata A. Br. and B. oleracea L.) were selected from a hydroponic screening with two salinity levels”
e5“Addition of manure significantly increased shoot growth for both Brassica species, while compost markedly improved B. oleracea shoot growth”
e6“These effects may have been related to increased shoot tissue K+:Na+ ratios and total phosphorus (P) concentrations, reflecting the K+ and P contents of the amendments”
Claim · model-written summary
When tomato was grown in the amended soils used for B. oleracea, its growth was not significantly greater than in the control.
- Taxon
- tomato
Solanum lycopersicume7 - Treatment
- grown in the amended soils used for B. oleraceae7
- Outcome
- growthe7
- Direction
- not significantly greatere7
- Comparator
- controle7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“When tomato (Lycopersicon esculentum Mill.) was grown in the amended soils used for B. oleracea, its growth was not significantly greater than in the control”
Claim · model-written summary
The organic amendments raised the water-extractable boron concentration of the soil.
- Treatment
- organic amendmentse7
- Outcome
- water-extractable boron (B) concentration of the soile7
- Direction
- raisede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two Brassica spp. (B. carinata A. Br. and B. oleracea L.) were selected from a hydroponic screening with two salinity levels”
e7“Although the organic amendments raised the water-extractable boron (B) concentration of the soil, plant tissue B concentrations were unaffected, possibly due to the elevated concentration of soluble in the soil”
Claim · model-written summary
Plant tissue boron concentrations of Brassica were unaffected by the organic amendments.
- Treatment
- organic amendmentse7
- Outcome
- plant tissue B concentrationse7
- Direction
- unaffectede7
- Qualifier
- possibly due to the elevated concentration of soluble in the soile7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two Brassica spp. (B. carinata A. Br. and B. oleracea L.) were selected from a hydroponic screening with two salinity levels”
e7“Although the organic amendments raised the water-extractable boron (B) concentration of the soil, plant tissue B concentrations were unaffected, possibly due to the elevated concentration of soluble in the soil”
The same questions in other papers
Brassica oleracea · growth · Solanum lycopersicum (tomato)Positive and negative results
1 in the opposite direction
- positive
fertilization · growth · Brassica oleracea (wild cabbage)Positive and negative results
239 papers in the same direction as this paper · 21 in the opposite direction · 3 reporting no difference from an alternative
- negative
- negative
- no effect
260 papers more in this group
See all 264 papers →fertilization · growth · Brassica carinata (Ethiopian mustard)Results agree
1 paper in the same direction as this paper
- positive
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.