Abstract
Abstract Corn ( Zea mays L.) and soybean ( Glycine max L. Merr.) were intercropped in various planting patterns in 1980, 1981, and 1982 on a Hadley fine sandy loam (coarse‐silty, mixed, nonacid, mesic Typic Udifluvent) to determine if corn:soybean mixtures might provide silage superior to pure corn for ruminants. All but one of the intercrop planting patterns produced dry matter (DM) yields similar to corn monoculture in the 1st year even when as many as half the corn rows were replaced with soybean. All intercrop planting patterns in 1981 produced similar DM yields to corn monoculture, but in 1982 intercrop DM yields were significantly lower than corn monoculture DM yields. Dry matter yields per row of intercropped soybeans were 6 to 32% less than yields per row of soybeans in monoculture. However, the DM yield per row of intercropped corn was increased 21 to 53% compared to yield per row of monoculture corn and compensated for the reduced DM yield of soybean. Yields for monocultures were computed at various proportions of corn and soybean in the harvested mixture and compared with intercrop yields. All intercrop patterns produced more DM than would be obtained from monocultures at the same yield‐ratio as in the intercrop. Protein Concentration was increased from 69 to 81 g kg− 1 for corn monoculture to 88 to 108 g kg− 1 for the various intercropping patterns. All intercrops produced 8 to 17% more total protein ha− 1 than corn monoculture. The intercrop pattern where alternate corn rows were replaced by soybean rows produced the largest increases in protein concentration although DM yield was reduced by 14% in the 3rd year.
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Claims 10
Claim · model-written summary
In the 1st year all but one intercrop planting pattern produced dry matter yields similar to corn monoculture, even when half the corn rows were replaced with soybean.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- intercrop planting patternse0
- Outcome
- dry matter (DM) yieldse0
- Direction
- similare0
- Qualifier
- in the 1st yeare0
- Comparator
- corn monoculturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All but one of the intercrop planting patterns produced dry matter (DM) yields similar to corn monoculture in the 1st year even when as many as half the corn rows were replaced with soybean”
Claim · model-written summary
In 1981 all intercrop planting patterns produced dry matter yields similar to corn monoculture.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- intercrop planting patternse0
- Outcome
- DM yieldse0
- Direction
- similare0
- Qualifier
- in 1981e0
- Comparator
- corn monoculturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All intercrop planting patterns in 1981 produced similar DM yields to corn monoculture”
Claim · model-written summary
In 1982 intercrop dry matter yields were significantly lower than corn monoculture yields.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- intercrope0
- Outcome
- DM yieldse0
- Direction
- lowere0
- Qualifier
- in 1982e0
- Comparator
- corn monoculturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in 1982 intercrop DM yields were significantly lower than corn monoculture DM yields”
Claim · model-written summary
Dry matter yield per row of intercropped soybeans was 6 to 32% less than per row of monoculture soybeans.
- Taxon
- soybeans
Glycine maxe0 - Treatment
- intercroppede0
- Outcome
- Dry matter yields per rowe0
- Direction
- lesse0
- Value
- 6 to 32%e0
- Comparator
- soybeans in monoculturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dry matter yields per row of intercropped soybeans were 6 to 32% less than yields per row of soybeans in monoculture”
Claim · model-written summary
Dry matter yield per row of intercropped corn increased 21 to 53% compared with monoculture corn, compensating for the reduced soybean yield.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- intercroppede0
- Outcome
- DM yield per rowe0
- Direction
- increasede0
- Value
- 21 to 53%e0
- Comparator
- monoculture corne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the DM yield per row of intercropped corn was increased 21 to 53% compared to yield per row of monoculture corn”
Claim · model-written summary
All intercrop patterns produced more dry matter than would be obtained from monocultures at the same yield ratio as in the intercrop.
- Treatment
- intercrop patternse0
- Outcome
- DMe0
- Direction
- moree0
- Comparator
- monocultures at the same yield‐ratioe0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All intercrop patterns produced more DM than would be obtained from monocultures at the same yield‐ratio as in the intercrop”
e1“Corn ( Zea mays L.)”
Claim · model-written summary
Protein concentration rose from 69-81 g kg-1 in corn monoculture to 88-108 g kg-1 in the various intercropping patterns.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- various intercropping patternse0
- Outcome
- Protein Concentratione0
- Direction
- increasede0
- Value
- 88 to 108 g kg− 1e0
- Qualifier
- 69 to 81 g kg− 1e0
- Comparator
- corn monoculturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Protein Concentration was increased from 69 to 81 g kg− 1 for corn monoculture to 88 to 108 g kg− 1 for the various intercropping patterns”
Claim · model-written summary
All intercrops produced 8 to 17% more total protein per hectare than corn monoculture.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- intercropse0
- Outcome
- total protein ha− 1e0
- Direction
- moree0
- Value
- 8 to 17%e0
- Comparator
- corn monoculturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All intercrops produced 8 to 17% more total protein ha− 1 than corn monoculture”
Claim · model-written summary
The pattern where alternate corn rows were replaced by soybean rows produced the largest increases in protein concentration.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- alternate corn rows were replaced by soybean rowse0
- Outcome
- protein concentratione0
- Direction
- largest increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The intercrop pattern where alternate corn rows were replaced by soybean rows produced the largest increases in protein concentration although DM yield was reduced by 14% in the 3rd year”
Claim · model-written summary
In the alternate-row intercrop pattern, dry matter yield was reduced by 14% in the 3rd year.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- alternate corn rows were replaced by soybean rowse0
- Outcome
- DM yielde0
- Direction
- reducede0
- Value
- 14%e0
- Qualifier
- in the 3rd yeare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The intercrop pattern where alternate corn rows were replaced by soybean rows produced the largest increases in protein concentration although DM yield was reduced by 14% in the 3rd year”
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