Abstract
Intercropping is a cropping strategy that makes efficient use of space, nutrients, and soil. A 2-year field trial was conducted in 2019 and 2020 to study the effects of different soybean sowing times (9 days before corn sowing (ST1), 0 days at corn sowing (ST2), and 9 days after corn sowing (ST3), respectively) and densities (120,000 plants ha−1 (PD1), 150,000 plants ha−1 (PD2), and 180,000 plants ha−1 (PD3), respectively, and the planting density of corn was 60,000 plants ha−1 constantly) on total yield and on mixed silage quality in corn-soybean strip intercropping system. The yield decreased with an increase in soybean planting density. Before ensiling, the total dry matter (DM) content increased with an increase in soybean planting density, while that of crude protein content decreased with sowing time. The interaction of planting density × sowing time was significant for neutral detergent fiber and water-soluble carbohydrate (WSC) content. After ensiling, the WSC content of PD2ST3 (4.90% DM) was the highest. The PD1 (4.51%) had a higher content of ammonia–nitrogen to total nitrogen than that of PD2 and PD3. The lactic acid content of PD2ST3 (3.14% DM) was the highest. In general, better silage quality and a higher total yield were obtained when soybean was sown at the planting density of 150,000 plants ha−1 after 9 days of corn sowing.
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Claims 10
Claim · model-written summary
Yield decreased as soybean density increased.
- Taxon
- soybean
Glycine maxe1 - Treatment
- soybean planting densitye0
- Outcome
- yielde0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yield decreased with an increase in soybean planting density”
e1“soybean sowing times (9 days before corn sowing (ST1)”
Claim · model-written summary
Pre-ensiling dry matter increased with soybean planting density.
- Taxon
- soybeanGlycine maxe1
- Treatment
- soybean planting densitye0
- Outcome
- total dry matter (DM) contente0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Before ensiling, the total dry matter (DM) content increased with an increase in soybean planting density”
e1“soybean sowing times (9 days before corn sowing (ST1)”
Claim · model-written summary
Pre-ensiling crude protein decreased with sowing time.
- Taxon
- soybeanGlycine maxe1
- Treatment
- sowing timee0
- Outcome
- crude protein contente0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“crude protein content decreased with sowing time”
e1“soybean sowing times (9 days before corn sowing (ST1)”
Claim · model-written summary
Density by sowing time interaction significantly affected neutral detergent fiber.
- Taxon
- soybeanGlycine maxe1
- Treatment
- planting density × sowing timee0
- Outcome
- neutral detergent fibere0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interaction of planting density × sowing time was significant for neutral detergent fiber and water-soluble carbohydrate (WSC) content”
e1“soybean sowing times (9 days before corn sowing (ST1)”
Claim · model-written summary
Density by sowing time interaction significantly affected WSC content.
- Taxon
- soybeanGlycine maxe1
- Treatment
- planting density × sowing timee0
- Outcome
- water-soluble carbohydrate (WSC) contente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interaction of planting density × sowing time was significant for neutral detergent fiber and water-soluble carbohydrate (WSC) content”
e1“soybean sowing times (9 days before corn sowing (ST1)”
Claim · model-written summary
After ensiling PD2ST3 had the highest WSC content, 4.90% DM.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After ensiling, the WSC content of PD2ST3 (4.90% DM) was the highest”
e1“soybean sowing times (9 days before corn sowing (ST1)”
Claim · model-written summary
PD1 had higher ammonia nitrogen fraction than PD2 and PD3.
- Taxon
- soybeanGlycine maxe1
- Material
- PD1e0
- Outcome
- content of ammonia–nitrogen to total nitrogene0
- Direction
- highere0
- Value
- 4.51%e0
- Comparator
- PD2 and PD3e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The PD1 (4.51%) had a higher content of ammonia–nitrogen to total nitrogen than that of PD2 and PD3”
e1“soybean sowing times (9 days before corn sowing (ST1)”
Claim · model-written summary
PD2ST3 had the highest lactic acid content, 3.14% DM.
- Taxon
- soybeanGlycine maxe1
- Material
- PD2ST3e0
- Outcome
- lactic acid contente0
- Direction
- higheste0
- Value
- 3.14% DMe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lactic acid content of PD2ST3 (3.14% DM) was the highest”
e1“soybean sowing times (9 days before corn sowing (ST1)”
Claim · model-written summary
Sowing soybean at 150,000 plants per hectare nine days after corn gave better silage quality.
- Taxon
- soybeanGlycine maxe1
- Treatment
- planting density of 150,000 plants ha−1 after 9 days of corn sowinge0
- Outcome
- silage qualitye0
- Direction
- bettere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“better silage quality and a higher total yield were obtained when soybean was sown at the planting density of 150,000 plants ha−1 after 9 days of corn sowing”
e1“soybean sowing times (9 days before corn sowing (ST1)”
Claim · model-written summary
Sowing soybean at 150,000 plants per hectare nine days after corn gave higher total yield.
- Taxon
- soybeanGlycine maxe1
- Treatment
- planting density of 150,000 plants ha−1 after 9 days of corn sowinge0
- Outcome
- total yielde0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“better silage quality and a higher total yield were obtained when soybean was sown at the planting density of 150,000 plants ha−1 after 9 days of corn sowing”
e1“soybean sowing times (9 days before corn sowing (ST1)”
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