Abstract
Introducing summer staple crops to diversify conventional summer paddy rice (Oryza sativa L.) and onion (Allium cepa L.) rotation is important for sustainable agriculture. Herein, we evaluate the effects of planting date (early June to late July) and tillage practice (deep cultivation, DC; conventional tillage, CT) on two maize and soybean cultivars over 4 years (2018–2021) in converted paddy soil in Korea. Due to the growing degree-day differences, the yields of June and July planted crops were 7050 and 5554 total digestible nutrient kg ha−1, respectively, for silage corn, and 7410 and 6473 marketable fresh ear kg ha−1, respectively, for waxy corn. Delaying soybean planting from June to July significantly reduced crops’ yield and interfered with field preparation for the following winter cash crops. The June and July planting yields were 2672 and 2090 kg ha−1, respectively, for large-grain soybean, and 2416 and 1861 kg ha−1, respectively, for small-grain soybean. Deep tillage had no effect on summer crops yield. Additionally, the summer crop growing practice had no residual effect on onion yield. Our study recommends mid to late June planting for growers who wish to introduce maize and soybean in rotation with winter onion in the region.
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Claims 8
Claim · model-written summary
June and July silage corn yielded 7050 and 5554 total digestible nutrient kg ha−1.
- Taxon
- silage corne0
- Treatment
- Junee0
- Outcome
- yieldse0
- Value
- 7050 and 5554 total digestible nutrient kg ha−1e0
- Comparator
- Julye0
Not reportedDirection
Verbatim
e0“the yields of June and July planted crops were 7050 and 5554 total digestible nutrient kg ha−1, respectively, for silage corn”
Claim · model-written summary
June and July waxy corn yielded 7410 and 6473 marketable fresh ear kg ha−1.
Verbatim
e0“7410 and 6473 marketable fresh ear kg ha−1, respectively, for waxy corn”
Claim · model-written summary
Delaying soybean planting significantly reduced yield.
- Taxon
- soybean
Glycine maxe0 - Treatment
- Delaying soybean planting from June to Julye0
- Outcome
- crops’ yielde0
- Direction
- reducede0
- Comparator
- Junee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Delaying soybean planting from June to July significantly reduced crops’ yield”
Claim · model-written summary
June and July large-grain soybean yields were 2672 and 2090 kg ha−1.
- Taxon
- soybeanGlycine maxe0
- Outcome
- planting yieldse0
- Value
- 2672 and 2090 kg ha−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The June and July planting yields were 2672 and 2090 kg ha−1, respectively, for large-grain soybean”
Claim · model-written summary
June and July small-grain soybean yields were 2416 and 1861 kg ha−1.
- Taxon
- soybeanGlycine maxt0
- Outcome
- yieldse1
- Value
- 2416 and 1861 kg ha−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“2416 and 1861 kg ha−1, respectively, for small-grain soybean”
t0“Soybean”
e1“The June and July planting yields”
Claim · model-written summary
Deep tillage had no effect on summer crop yield.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Deep tillage had no effect on summer crops yield”
t0“Maize”
Claim · model-written summary
Summer crop growing practice had no residual effect on onion yield.
- Taxon
- onion
Allium cepae0 - Treatment
- summer crop growing practicee0
- Outcome
- onion yielde0
- Direction
- no residual effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the summer crop growing practice had no residual effect on onion yield”
Claim · model-written summary
Mid to late June planting is recommended for the rotation.
- Taxon
- maize and soybeanGlycine max
Zea mayse0 - Outcome
- mid to late June plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Our study recommends mid to late June planting for growers who wish to introduce maize and soybean in rotation with winter onion in the region”
The same questions in other papers
tillage · yield · Zea mays (maize)Positive and negative results
286 papers in the same direction as this paper · 812 in the opposite direction
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