Abstract
The objective of this work was to determine the effect of incorporation timing of the velvet bean (Stizolobium cinereum) (GM) on both organic broccoli yield and N status. Mineral N content in the soil, biologically fixed N recovery by broccoli, GM biomass decomposition and N release kinetics were also determined. Plots were fertilized with 12 Mg ha -1 of organic compost and received GM either at 0, 15, 30 or 45 days after transplant. Other treatments were compost (12 or 25 Mg ha -1 ), GM, mineral fertilizers and control (no fertilizer). The data were collected in four completely randomized blocks. GM decomposition increased mineral N content in soil as rapidly as mineral fertilizer or the supply of 25 Mg ha -1 of compost. The N half-life in GM (24 days) is smaller than the mass half-life (35 days) and the biological fixation contributed with 23.6% of N present in the aboveground biomass of broccoli. The result suggests a higher synchrony between the crop relative growth rate and N release from the GM when incorporated at crop early growth stage. The incorporation of GM until 15 days after transplanting replaces 50% of the highest compost dose, without yield loss.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
Green manure decomposition increased soil mineral nitrogen as rapidly as mineral fertilizer or 25 Mg ha -1 compost.
- Taxon
- broccoli
Brassica oleracea var. italicat0 - Treatment
- GM decompositione0
- Outcome
- mineral N content in soile0
- Direction
- increasede0
- Comparator
- mineral fertilizer or the supply of 25 Mg ha -1 of composte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“broccoli”
e0“GM decomposition increased mineral N content in soil as rapidly as mineral fertilizer or the supply of 25 Mg ha -1 of compost.”
Claim · model-written summary
The nitrogen half-life in green manure was 24 days.
- Taxon
- broccoliBrassica oleracea var. italicat0
- Outcome
- N half-life in GMe0
- Direction
- smallere0
- Value
- 24 dayse0
- Comparator
- mass half-lifee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“broccoli”
e0“The N half-life in GM (24 days) is smaller than the mass half-life (35 days)”
Claim · model-written summary
The mass half-life in green manure was 35 days.
- Taxon
- broccoliBrassica oleracea var. italicat0
- Outcome
- mass half-lifee0
- Value
- 35 dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“broccoli”
e0“The N half-life in GM (24 days) is smaller than the mass half-life (35 days)”
Claim · model-written summary
Biological fixation contributed 23.6% of nitrogen in broccoli aboveground biomass.
- Taxon
- broccoliBrassica oleracea var. italicae0
- Outcome
- N present in the aboveground biomass of broccolie0
- Value
- 23.6%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the biological fixation contributed with 23.6% of N present in the aboveground biomass of broccoli”
Claim · model-written summary
The authors infer higher synchrony between crop relative growth and nitrogen release when green manure is incorporated early.
- Taxon
- broccoliBrassica oleracea var. italicat0
- Treatment
- GM when incorporated at crop early growth stagee0
- Outcome
- synchrony between the crop relative growth rate and N releasee0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“broccoli”
e0“higher synchrony between the crop relative growth rate and N release from the GM when incorporated at crop early growth stage”
Claim · model-written summary
Incorporating green manure by 15 days after transplanting replaced half the highest compost dose without yield loss.
- Taxon
- broccoliBrassica oleracea var. italicat0
- Treatment
- incorporation of GM until 15 days after transplantinge0
- Outcome
- yielde0
- Direction
- without yield losse0
- Value
- 50%e0
- Comparator
- highest compost dosee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“broccoli”
e0“The incorporation of GM until 15 days after transplanting replaces 50% of the highest compost dose, without yield loss.”
The same questions in other papers
transgenic · yield · Brassica oleracea (wild cabbage)Positive and negative results
1 paper in the same direction as this paper · 8 reporting no difference from an alternative
- positive
- positive
- positive
6 papers more in this group
See all 10 papers →transplanting · yield · Brassica oleracea (wild cabbage)Positive and negative results
9 papers in the same direction as this paper · 40 reporting no difference from an alternative
- positive
- positive
- positive
46 papers more in this group
See all 50 papers →transgenic · nutrient: content · Brassica oleracea (wild cabbage)Results agree
3 papers in the same direction as this paper
- positive
- positive
- 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.