Abstract
To increase the yield of spring maize, selecting TT 33 as experiment material, setting six nitrogen application levels(N 0 kg / ha, 120 kg / ha, 240 kg / ha, 300 kg / ha, 360 kg / ha, 420 kg / ha), the effects of nitrogen rate on grain yield, dry matter accumulation and LAI of dry-land spring maize was analyzed. The results showed that to some extent, with the rising of nitrogen rate, the spring maize yield could significantly increase. When the nitrogen rate was above 300 kg / ha, the increase of spring maize yield slowed down or even slightly reduced. The LAI increased with the increase of nitrogen rate. The LAI of silking stage reached peak after a decline. The total dry matter accumulation significantly increased with the increase of nitrogen rate. In conclusion, under this condition, the appropriate increase of nitrogen rate could greatly improve grain yield. The most optimal nitrogen rate was 300 kg / hm2 for higher grain yield in dry-land soil.
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
Rising nitrogen rate significantly increased spring maize yield to a point.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with the rising of nitrogen rate, the spring maize yield could significantly increase”
Claim · model-written summary
Above 300 kg / ha nitrogen, yield gains slowed or slightly reversed.
- Treatment
- nitrogen rate was above 300 kg / hae0
- Outcome
- spring maize yielde0
- Direction
- slowed down or even slightly reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the nitrogen rate was above 300 kg / ha, the increase of spring maize yield slowed down or even slightly reduced”
Claim · model-written summary
LAI increased with nitrogen rate.
Not reportedTaxonComparator
Verbatim
e0“The LAI increased with the increase of nitrogen rate”
Claim · model-written summary
LAI at silking reached a peak and then declined.
Not reportedTaxon
Verbatim
e0“The LAI of silking stage reached peak after a decline”
Claim · model-written summary
Total dry matter accumulation significantly increased with nitrogen rate.
Not reportedTaxonComparator
Verbatim
e0“The total dry matter accumulation significantly increased with the increase of nitrogen rate”
Claim · model-written summary
The authors identified 300 kg / hm2 as the optimal nitrogen rate for higher grain yield in dryland soil.
Not reportedTaxon
Verbatim
e0“The most optimal nitrogen rate was 300 kg / hm2 for higher grain yield in dry-land soil”
The same questions in other papers
nitrogen · growth · Zea mays (maize)Positive and negative results
618 papers in the same direction as this paper · 115 in the opposite direction · 14 reporting no difference from an alternative
- negative
- no effect
- negative
744 papers more in this group
See all 748 papers →nitrogen · yield · Zea mays (maize)Positive and negative results
1,905 papers in the same direction as this paper · 234 in the opposite direction · 45 reporting no difference from an alternative
- negative
- no effect
- negative
2,181 papers more in this group
See all 2,185 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.