Abstract
SUMMARY Six field experiments (1963–8) in eastern England compared solid fertilizer with liquid fertilizer or anhydrous ammonia for sugar beet. Two glasshouse experiments investigated the interaction between depth of placement of fertilizer and soil moisture. Yields of sugar were the same from broadcast solid and sprayed liquid in all the experiments, but nitrogen uptake by the crop was less from liquid than from solid. Three experiments tested placement of liquid 4 in to the side and either 2 or 6 in below the seed. Plants with deep-placed fertilizer consistently out-yielded those with shallowplaced fertilizer, but yields were never significantly different from broadcast solid fertilizer. Dry-matter yields of sugar beet grown in containers indoors showed that the crop responded to deep placement when the surface soil was watered infrequently. With anhydrous ammonia injected during seed-bed preparation, sugar yield and nitrogen uptake were the same as with solid fertilizer in the seed bed, and were greater than with anhydrous ammonia injected in the ploughed land during early spring. A side-band injection of anhydrous ammonia before singling gave a crop containing as much nitrogen at harvest as, but less sugar than, nitrogen applied in the seed bed.
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Claims 11
Claim · model-written summary
Broadcast solid and sprayed liquid fertilizer gave equal sugar yields.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarist0 - Treatment
- sprayed liquide0
- Outcome
- Yields of sugare0
- Direction
- the samee0
- Comparator
- broadcast solide0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sugar beet”
e0“Yields of sugar were the same from broadcast solid and sprayed liquid in all the experiments”
Claim · model-written summary
Liquid fertilizer gave less crop nitrogen uptake than solid fertilizer.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- liquide0
- Outcome
- nitrogen uptake by the crope0
- Direction
- lesse0
- Comparator
- solide0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sugar beet”
e0“nitrogen uptake by the crop was less from liquid than from solid”
Claim · model-written summary
Deep placement consistently out-yielded shallow placement.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- deep-placed fertilizere0
- Outcome
- out-yieldede0
- Direction
- out-yieldede0
- Comparator
- shallowplaced fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sugar beet”
e0“Plants with deep-placed fertilizer consistently out-yielded those with shallowplaced fertilizer”
Claim · model-written summary
Deep placement and broadcast solid fertilizer did not differ significantly in yield.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Outcome
- yieldse0
- Direction
- never significantly differente0
- Comparator
- broadcast solid fertilizere0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sugar beet”
e0“yields were never significantly different from broadcast solid fertilizer”
Claim · model-written summary
Sugar beet dry matter responded to deep fertilizer placement when surface soil was watered infrequently.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- deep placemente0
- Outcome
- Dry-matter yieldse0
- Qualifier
- when the surface soil was watered infrequentlye0
- Setting
- containers indoorse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dry-matter yields of sugar beet grown in containers indoors showed that the crop responded to deep placement when the surface soil was watered infrequently”
Claim · model-written summary
Anhydrous ammonia injected during seedbed preparation gave the same sugar yield as solid fertilizer.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- anhydrous ammonia injected during seed-bed preparatione0
- Outcome
- sugar yielde0
- Direction
- the samee0
- Comparator
- solid fertilizer in the seed bede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sugar beet”
e0“With anhydrous ammonia injected during seed-bed preparation, sugar yield and nitrogen uptake were the same as with solid fertilizer in the seed bed”
Claim · model-written summary
Anhydrous ammonia injected during seedbed preparation gave the same nitrogen uptake as solid fertilizer.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- anhydrous ammonia injected during seed-bed preparatione0
- Outcome
- nitrogen uptakee0
- Direction
- the samee0
- Comparator
- solid fertilizer in the seed bede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sugar beet”
e0“With anhydrous ammonia injected during seed-bed preparation, sugar yield and nitrogen uptake were the same as with solid fertilizer in the seed bed”
Claim · model-written summary
Seedbed ammonia injection gave greater sugar yield than early-spring ploughed-land injection.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Direction
- greatere0
- Comparator
- anhydrous ammonia injected in the ploughed land during early springe0
Not reportedTreatmentOutcome
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sugar beet”
e0“were greater than with anhydrous ammonia injected in the ploughed land during early spring”
Claim · model-written summary
Seedbed ammonia injection gave greater nitrogen uptake than early-spring ploughed-land injection.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Direction
- greatere0
- Comparator
- anhydrous ammonia injected in the ploughed land during early springe0
Not reportedTreatmentOutcome
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sugar beet”
e0“were greater than with anhydrous ammonia injected in the ploughed land during early spring”
Claim · model-written summary
Side-band ammonia injection before singling gave as much harvest nitrogen as seedbed nitrogen.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- side-band injection of anhydrous ammonia before singlinge0
- Outcome
- nitrogen at harveste0
- Direction
- as muche0
- Comparator
- nitrogen applied in the seed bede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sugar beet”
e0“A side-band injection of anhydrous ammonia before singling gave a crop containing as much nitrogen at harvest as, but less sugar than, nitrogen applied in the seed bed”
Claim · model-written summary
Side-band ammonia injection before singling gave less sugar than seedbed nitrogen.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- side-band injection of anhydrous ammonia before singlinge0
- Outcome
- sugare0
- Direction
- lesse0
- Comparator
- nitrogen applied in the seed bede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sugar beet”
e0“A side-band injection of anhydrous ammonia before singling gave a crop containing as much nitrogen at harvest as, but less sugar than, nitrogen applied in the seed bed”
The same questions in other papers
ammonia · quality: sugar starch · Beta vulgaris (beet)Positive and negative results
1 reporting no difference from an alternative
- positive
ammonia · yield · Beta vulgaris (beet)Positive and negative results
3 reporting no difference from an alternative
- positive
- positive
- positive
application · yield · Beta vulgaris (beet)Positive and negative results
7 papers in the same direction as this paper · 112 reporting no difference from an alternative
- positive
- positive
- positive
116 papers more in this group
See all 120 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.