Abstract
The effect of water supply on total mass and yield of broccoli ( Brassica oleracea L. var. italica , `Emperor') was examined in an experiment carried out in a microplot field installation on three soil types: Gleyic Cambisol (sand) and Eutric Fluvisol (flood-plain loam) in spring and fall and on a Haplic Phaeosem (loessal loam) in fall. Soil moisture levels were established by irrigation under the following replacement protocols: 14 mm whenever the limit of 75% vol of the available soil water (ASW), 14 and 28 mm whenever the limit of 55% vol of ASW, and 14, 28, and 42 mm whenever the limit of 35% vol of ASW were reached. The highest total plant mass was achieved by irrigation at 75% vol of ASW on the sandy soil in spring cultivation, and at 55% vol of ASW (in doses of 28 mm) on the flood-plain loam in fall cultivation. The highest marketable yield (head mass) was obtained on the sandy soil at 55% vol of ASW (in doses of 14 mm) for both spring and fall production. The total plant mass and head mass was only significantly affected by reduced soil moisture at 35% vol of ASW in spring. At 75% vol of ASW, irrigation with 14 mm always resulted in reduced headmass. In fall, yield was not affected by soil moisture depletion or soil type. For the production of broccoli, it is recommended that irrigation be started when soil moisture falls below 55% vol of ASW, followed by a water application rates of either 14 or 28 mm.
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Claims 7
Claim · model-written summary
Irrigation at 75% vol of ASW on sandy soil in spring gave the highest broccoli total plant mass.
- Taxon
- broccoli
Brassica oleracea var. italicae1 - Treatment
- irrigation at 75% vol of ASWe2
- Outcome
- total plant masse2
- Direction
- higheste2
- Setting
- sandy soil in spring cultivatione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The effect of water supply on total mass and yield of broccoli ( Brassica oleracea L. var. italica , `Emperor') was examined in an experiment carried out in a microplot field installation on three soil types”
e2“The highest total plant mass was achieved by irrigation at 75% vol of ASW on the sandy soil in spring cultivation, and at 55% vol of ASW (in doses of 28 mm) on the flood-plain loam in fall cultivation”
Claim · model-written summary
Irrigation at 55% vol of ASW in 28 mm doses gave the highest broccoli total plant mass on flood-plain loam in fall.
- Taxon
- broccoliBrassica oleracea var. italicae1
- Treatment
- 55% vol of ASW (in doses of 28 mm)e2
- Outcome
- total plant masse2
- Direction
- higheste2
- Setting
- flood-plain loam in fall cultivatione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The effect of water supply on total mass and yield of broccoli ( Brassica oleracea L. var. italica , `Emperor') was examined in an experiment carried out in a microplot field installation on three soil types”
e2“The highest total plant mass was achieved by irrigation at 75% vol of ASW on the sandy soil in spring cultivation, and at 55% vol of ASW (in doses of 28 mm) on the flood-plain loam in fall cultivation”
Claim · model-written summary
Irrigation at 55% vol of ASW in 14 mm doses gave the highest broccoli marketable yield on sandy soil in both seasons.
- Taxon
- broccoliBrassica oleracea var. italicae1
- Treatment
- 55% vol of ASW (in doses of 14 mm)e3
- Outcome
- marketable yield (head mass)e3
- Direction
- higheste3
- Qualifier
- for both spring and fall productione3
- Setting
- sandy soile3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The effect of water supply on total mass and yield of broccoli ( Brassica oleracea L. var. italica , `Emperor') was examined in an experiment carried out in a microplot field installation on three soil types”
e3“The highest marketable yield (head mass) was obtained on the sandy soil at 55% vol of ASW (in doses of 14 mm) for both spring and fall production”
Claim · model-written summary
Reduced soil moisture at 35% vol of ASW significantly affected broccoli total plant mass and head mass in spring.
- Taxon
- broccoliBrassica oleracea var. italicae1
- Treatment
- reduced soil moisture at 35% vol of ASWe4
- Outcome
- total plant mass and head masse4
- Qualifier
- in springe4
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The effect of water supply on total mass and yield of broccoli ( Brassica oleracea L. var. italica , `Emperor') was examined in an experiment carried out in a microplot field installation on three soil types”
e4“The total plant mass and head mass was only significantly affected by reduced soil moisture at 35% vol of ASW in spring”
Claim · model-written summary
Irrigation with 14 mm at 75% vol of ASW reduced broccoli headmass.
- Taxon
- broccoliBrassica oleracea var. italicae1
- Treatment
- irrigation with 14 mme5
- Outcome
- headmasse5
- Direction
- reducede5
- Qualifier
- At 75% vol of ASWe5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The effect of water supply on total mass and yield of broccoli ( Brassica oleracea L. var. italica , `Emperor') was examined in an experiment carried out in a microplot field installation on three soil types”
e5“At 75% vol of ASW, irrigation with 14 mm always resulted in reduced headmass”
Claim · model-written summary
Soil moisture depletion and soil type did not affect broccoli yield in fall.
- Taxon
- broccoliBrassica oleracea var. italicae1
- Treatment
- soil moisture depletione6
- Outcome
- yielde6
- Direction
- not affectede6
- Qualifier
- In falle6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The effect of water supply on total mass and yield of broccoli ( Brassica oleracea L. var. italica , `Emperor') was examined in an experiment carried out in a microplot field installation on three soil types”
e6“In fall, yield was not affected by soil moisture depletion or soil type”
Claim · model-written summary
Irrigation should start when soil moisture falls below 55% vol of ASW, with 14 or 28 mm per application, for broccoli production.
- Taxon
- broccoliBrassica oleracea var. italicae7
- Outcome
- irrigation be started when soil moisture falls below 55% vol of ASWe7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“For the production of broccoli, it is recommended that irrigation be started when soil moisture falls below 55% vol of ASW, followed by a water application rates of either 14 or 28 mm”
The same questions in other papers
soil water · yield · Brassica oleracea (wild cabbage)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
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.