Abstract
Hole sowing is a new and efficient cultivation method with few studies. This study investigated the effects of different sowing densities and nitrogen topdressing at the jointing stage on dry matter, quality, and yield under wheat hole sowing to provide a theoretical basis for integrating wheat fertilizer and density-supporting technology. In this study, a two-factor split-plot design was used. The sowing density was the main plot, and four levels were set: D1, D2, D3, and D4 (238, 327, 386, and 386 suitable seeds·m−2). The four sowing levels were sown according to 8 grains/hole, 11 grains/hole, 13 grains/hole, and 16 grains/hole, respectively, with a row spacing of 25 cm and a hole spacing of 13.5 cm; the amount of nitrogen fertilizer applied at the jointing stage was the sub-area, with four levels: N1, N2, N3, and N4 (0, 60, 120, and 180 kg·ha−1). After two years of experimental research, the following main conclusions are drawn: the use of high sowing density and nitrogen topdressing is helpful to improve the dry matter quality of wheat spikes at the maturing stage; the sowing density had significant or highly significant effects on protein content, starch content, and sedimentation value. The yield from 2018–2019 reached a maximum of 8448.67 kg·ha−1 under D4N4 treatment, and the yield from 2019–2020 reached a maximum of 10,136.40 kg·ha−1 under D4N3 treatment. Therefore, the combination of 225 kg·ha−1 sowing density and 120–180 kg·ha−1 nitrogen topdressing at the jointing stage can be used in field production, which can help improve wheat production potential. Similarly, understanding the interaction between wheat hole sowing and different sowing densities and nitrogen topdressing amounts provides a practical reference for high-yield wheat cultivation techniques.
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Claims 7
Claim · model-written summary
High sowing density and nitrogen topdressing improved mature spike dry matter quality.
- Taxon
- wheat
Triticum aestivume0 - Organ / stage
- spikes at the maturing stagee0
- Treatment
- high sowing density and nitrogen topdressinge0
- Outcome
- dry matter qualitye0
- Direction
- improvee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the use of high sowing density and nitrogen topdressing is helpful to improve the dry matter quality of wheat spikes at the maturing stage”
Claim · model-written summary
Sowing density significantly affected protein content.
Not reportedTaxonComparatorDirection
Verbatim
e0“the sowing density had significant or highly significant effects on protein content, starch content, and sedimentation value”
Claim · model-written summary
Sowing density significantly affected starch content.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- sowing densitye0
- Outcome
- starch contente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the sowing density had significant or highly significant effects on protein content, starch content, and sedimentation value”
t0“Wheat”
Claim · model-written summary
Sowing density significantly affected sedimentation value.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- sowing densitye0
- Outcome
- sedimentation valuee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the sowing density had significant or highly significant effects on protein content, starch content, and sedimentation value”
t0“Wheat”
Claim · model-written summary
The 2018–2019 yield peaked at 8448.67 kg·ha−1 under D4N4.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“The yield from 2018–2019 reached a maximum of 8448.67 kg·ha−1 under D4N4 treatment”
Claim · model-written summary
The 2019–2020 yield peaked at 10,136.40 kg·ha−1 under D4N3.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- D4N3e0
- Outcome
- yielde0
- Direction
- maximume0
- Value
- 10,136.40 kg·ha−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“the yield from 2019–2020 reached a maximum of 10,136.40 kg·ha−1 under D4N3 treatment”
Claim · model-written summary
Authors recommend 225 kg·ha−1 sowing density with 120–180 kg·ha−1 nitrogen at jointing for field production.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- 225 kg·ha−1 sowing density and 120–180 kg·ha−1 nitrogen topdressinge0
- Outcome
- field productione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“the combination of 225 kg·ha−1 sowing density and 120–180 kg·ha−1 nitrogen topdressing at the jointing stage can be used in field production, which can help improve wheat production potential”
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