Abstract
Broccoli quality in British Columbia can vary with season and with the farm site on which it is grown. One major management difference between farms is nitrogen fertilization rate. This work was conducted to determine the effect of nitrogen fertilization (0, 125, 250, 375, 500 and 625 kg N ha −1 ) and growing season (three plantings in 2 consecutive years) on vitamin C content, head size and storability of broccoli (Brassica oleracea var. Italica, 'Emperor'). The climatic conditions during crop growth and development had a greater overall effect on vitamin C content, head diameter and head weight than nitrogen fertilization. Weight and vitamin C losses during storage in the first year were not affected by nitrogen fertilization rates. Moderate nitrogen application rates of 125 and 250 kg N ha −1 in all three plantings produced a head size considered optimal for marketing. Key words: Postharvest, vegetable quality, climatic conditions
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Claims 3
Claim · model-written summary
Climatic conditions during crop growth have a greater overall effect than nitrogen fertilization on vitamin C content, head diameter and head weight of broccoli.
- Taxon
- Brassica oleracea var. Italica
Brassica oleracea var. italicat0 - Treatment
- climatic conditions during crop growth and developmente1
- Outcome
- vitamin C content, head diameter and head weighte1
- Direction
- greatere1
- Comparator
- nitrogen fertilizatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“broccoli (Brassica oleracea var. Italica)”
e1“The climatic conditions during crop growth and development had a greater overall effect on vitamin C content, head diameter and head weight than nitrogen fertilization”
Claim · model-written summary
Nitrogen fertilization rate does not affect broccoli weight and vitamin C losses during storage in the first year.
- Taxon
- Brassica oleracea var. ItalicaBrassica oleracea var. italicat0
- Treatment
- nitrogen fertilization ratese2
- Outcome
- Weight and vitamin C losses during storagee2
- Direction
- not affectede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“broccoli (Brassica oleracea var. Italica)”
e2“Weight and vitamin C losses during storage in the first year were not affected by nitrogen fertilization rates”
Claim · model-written summary
Moderate nitrogen application rates produce a broccoli head size considered optimal for marketing.
- Taxon
- Brassica oleracea var. ItalicaBrassica oleracea var. italicat0
- Treatment
- Moderate nitrogen application ratese3
- Outcome
- head size considered optimal for marketinge4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“broccoli (Brassica oleracea var. Italica)”
e3“Moderate nitrogen application rates”
e4“produced a head size considered optimal for marketing”
The same questions in other papers
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- positive
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See all 66 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.