Abstract
An experiment was conducted to evaluate the effect of plant spacing and nitrogen fertilization on Swiss chard's yield, from September to November 2009. The experimental design was of randomized blocks in split plot with four replications. In the plots were allocated the two plant spacings (0.30 and 0.50 m) and in the subplots the five doses of nitrogen (0, 40, 80, 120 and 160 kg ha-1). The crop was harvested 90 days after transplanting. The plant spacing of 0.50 m provided increased production of total fresh weight of shoot (961.7 g plant-1) and marketable (873.1 g plant-1). However, the highest total yield (77.8 t ha-1) and marketable (64.5 t ha-1) was achieved with the smaller spacing between plants (0.30 m). The N rates applied in coverage until 160 kg ha-1 increased in a linear form the total and marketable production of fresh mass of shoots, the total and marketable yield, the N content and the N accumulation in the shoots of Swiss chard plants on the evaluated plant spacings.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. 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 7
Claim · model-written summary
Spacing of 0.50 m increased total shoot fresh weight per plant to 961.7 g plant-1.
- Taxon
- Swiss chard
Beta vulgaris subsp. vulgarist0 - Treatment
- 0.50 me0
- Outcome
- total fresh weight of shoote0
- Direction
- increasede0
- Value
- 961.7 g plant-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plant spacing of 0.50 m provided increased production of total fresh weight of shoot (961.7 g plant-1) and marketable (873.1 g plant-1).”
t0“Swiss chard”
Claim · model-written summary
Spacing of 0.50 m increased marketable shoot fresh weight per plant to 873.1 g plant-1.
- Taxon
- Swiss chardBeta vulgaris subsp. vulgarist0
- Treatment
- 0.50 me0
- Outcome
- marketablee0
- Direction
- increasede0
- Value
- 873.1 g plant-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plant spacing of 0.50 m provided increased production of total fresh weight of shoot (961.7 g plant-1) and marketable (873.1 g plant-1).”
t0“Swiss chard”
Claim · model-written summary
Spacing of 0.30 m gave the highest total yield, 77.8 t ha-1.
- Taxon
- Swiss chardBeta vulgaris subsp. vulgarist0
- Treatment
- 0.30 me0
- Outcome
- total yielde0
- Direction
- higheste0
- Value
- 77.8 t ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest total yield (77.8 t ha-1) and marketable (64.5 t ha-1) was achieved with the smaller spacing between plants (0.30 m).”
t0“Swiss chard”
Claim · model-written summary
Spacing of 0.30 m gave the highest marketable yield, 64.5 t ha-1.
- Taxon
- Swiss chardBeta vulgaris subsp. vulgarist0
- Treatment
- 0.30 me0
- Outcome
- marketablee0
- Direction
- higheste0
- Value
- 64.5 t ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest total yield (77.8 t ha-1) and marketable (64.5 t ha-1) was achieved with the smaller spacing between plants (0.30 m).”
t0“Swiss chard”
Claim · model-written summary
Nitrogen rates up to 160 kg ha-1 linearly increased total and marketable shoot fresh mass production.
- Taxon
- Swiss chardBeta vulgaris subsp. vulgarise0
- Treatment
- N rates applied in coverage until 160 kg ha-1e0
- Outcome
- total and marketable production of fresh mass of shootse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The N rates applied in coverage until 160 kg ha-1 increased in a linear form the total and marketable production of fresh mass of shoots, the total and marketable yield, the N content and the N accumulation in the shoots of Swiss chard plants on the evaluated plant spacings.”
Claim · model-written summary
Nitrogen rates up to 160 kg ha-1 linearly increased total and marketable yield.
- Taxon
- Swiss chardBeta vulgaris subsp. vulgarise0
- Treatment
- N rates applied in coverage until 160 kg ha-1e0
- Outcome
- total and marketable yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The N rates applied in coverage until 160 kg ha-1 increased in a linear form the total and marketable production of fresh mass of shoots, the total and marketable yield, the N content and the N accumulation in the shoots of Swiss chard plants on the evaluated plant spacings.”
Claim · model-written summary
Nitrogen rates up to 160 kg ha-1 linearly increased shoot nitrogen content and accumulation.
- Taxon
- Swiss chardBeta vulgaris subsp. vulgarise0
- Treatment
- N rates applied in coverage until 160 kg ha-1e0
- Outcome
- N content and the N accumulation in the shootse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The N rates applied in coverage until 160 kg ha-1 increased in a linear form the total and marketable production of fresh mass of shoots, the total and marketable yield, the N content and the N accumulation in the shoots of Swiss chard plants on the evaluated plant spacings.”
The same questions in other papers
nitrogen · nutrient: content · Beta vulgaris (beet)Positive and negative results
22 papers in the same direction as this paper · 8 in the opposite direction
- no effect
- negative
- negative
27 papers more in this group
See all 31 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.