Abstract
To identify the optimum intercropping system of sorghum and clover in terms of quantity and quality of forage yield, a two-year experiment was conducted in a semi-arid region of Iran, during the 2016 and 2017 growing seasons. Treatments consisted of eight cropping systems: S75C25 (75% sorghum + 25% clover), S50C50 and S25C75, as replacement series; S100C50, S50C100, and S100C100 as additive series; and sole cultures of sorghum and clover. The highest and lowest dry matter (DM) yield (29.17 and 10.71 Mg·ha-1) were found in the S100C100 and clover monoculture systems, respectively. Although the highest content of crude protein (CP) and digestible dry matter (DDM) were recorded from clover monoculture, the maximum yield of CP and DDM were obtained from the S100C100. Increasing the proportion of clover in intercropping decreased the acid detergent fiber and neutral detergent fiber, increased the relative feed value, net energy for lactation and dry matter intake. Increasing the proportion of sorghum in intercropping improved the yield of DM, CP and DDM. The land equivalent ratio for DM yield was higher than one in all intercropping treatments but were significantly higher in the additive intercropping systems. Overall, it could be concluded that sorghum and clover additive intercropping systems increased forage yield and quality, however if simultaneous increase of the quantity and quality of forage is the interest of this study then the S100C100 system had a significant advantage over other treatments and can be a suitable alternative for sorghum and clover monoculture systems in semi-arid regions.
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Claims 11
Claim · model-written summary
S100C100 gave the highest dry matter yield (29.17) among the cropping systems.
- Treatment
- S100C100e1
- Outcome
- dry matter (DM) yielde1
- Direction
- higheste1
- Value
- 29.17e1
- Setting
- semi-arid region of Irane0
Trifolium
SorghumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“intercropping system of sorghum and clover in terms of quantity and quality of forage yield, a two-year experiment was conducted in a semi-arid region of Iran”
e1“The highest and lowest dry matter (DM) yield (29.17 and 10.71 Mg·ha-1) were found in the S100C100 and clover monoculture systems, respectively”
Claim · model-written summary
Clover monoculture gave the lowest dry matter yield (10.71).
- Treatment
- clover monoculture systemse1
- Outcome
- dry matter (DM) yielde1
- Direction
- loweste1
- Value
- 10.71e1
- Setting
- semi-arid region of Irane0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“intercropping system of sorghum and clover in terms of quantity and quality of forage yield, a two-year experiment was conducted in a semi-arid region of Iran”
e1“The highest and lowest dry matter (DM) yield (29.17 and 10.71 Mg·ha-1) were found in the S100C100 and clover monoculture systems, respectively”
Claim · model-written summary
Clover monoculture had the highest crude protein and digestible dry matter content.
- Treatment
- clover monoculturee1
- Outcome
- content of crude protein (CP) and digestible dry matter (DDM)e1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“intercropping system of sorghum and clover in terms of quantity and quality of forage yield, a two-year experiment was conducted in a semi-arid region of Iran”
e1“Although the highest content of crude protein (CP) and digestible dry matter (DDM) were recorded from clover monoculture”
Claim · model-written summary
The S100C100 system gave the maximum yield of crude protein and digestible dry matter.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“intercropping system of sorghum and clover in terms of quantity and quality of forage yield, a two-year experiment was conducted in a semi-arid region of Iran”
e1“the maximum yield of CP and DDM were obtained from the S100C100”
Claim · model-written summary
Increasing the clover proportion in intercropping decreased acid detergent fiber and neutral detergent fiber.
- Treatment
- Increasing the proportion of clover in intercroppinge1
- Outcome
- acid detergent fiber and neutral detergent fibere1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“intercropping system of sorghum and clover in terms of quantity and quality of forage yield, a two-year experiment was conducted in a semi-arid region of Iran”
e1“Increasing the proportion of clover in intercropping decreased the acid detergent fiber and neutral detergent fiber”
Claim · model-written summary
Increasing the clover proportion in intercropping increased relative feed value, net energy for lactation and dry matter intake.
- Treatment
- Increasing the proportion of clover in intercroppinge1
- Outcome
- relative feed value, net energy for lactation and dry matter intakee2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“intercropping system of sorghum and clover in terms of quantity and quality of forage yield, a two-year experiment was conducted in a semi-arid region of Iran”
e1“Increasing the proportion of clover in intercropping decreased the acid detergent fiber and neutral detergent fiber”
e2“increased the relative feed value, net energy for lactation and dry matter intake”
Claim · model-written summary
Increasing the sorghum proportion in intercropping improved the yield of dry matter, crude protein and digestible dry matter.
- Treatment
- Increasing the proportion of sorghum in intercroppinge1
- Outcome
- yield of DM, CP and DDMe1
- Direction
- improvede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“intercropping system of sorghum and clover in terms of quantity and quality of forage yield, a two-year experiment was conducted in a semi-arid region of Iran”
e1“Increasing the proportion of sorghum in intercropping improved the yield of DM, CP and DDM”
Claim · model-written summary
The land equivalent ratio for dry matter yield was higher than one in all intercropping treatments.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“intercropping system of sorghum and clover in terms of quantity and quality of forage yield, a two-year experiment was conducted in a semi-arid region of Iran”
e1“The land equivalent ratio for DM yield was higher than one in all intercropping treatments but were significantly higher in the additive intercropping systems”
Claim · model-written summary
The land equivalent ratio for dry matter yield was significantly higher in the additive intercropping systems.
- Treatment
- additive intercropping systemse1
- Outcome
- land equivalent ratio for DM yielde1
- Direction
- highere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“intercropping system of sorghum and clover in terms of quantity and quality of forage yield, a two-year experiment was conducted in a semi-arid region of Iran”
e1“The land equivalent ratio for DM yield was higher than one in all intercropping treatments but were significantly higher in the additive intercropping systems”
Claim · model-written summary
The S100C100 system had a significant advantage over other treatments for simultaneous increase of forage quantity and quality.
- Treatment
- S100C100 systeme1
- Outcome
- simultaneous increase of the quantity and quality of foragee2
- Comparator
- other treatmentse1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“intercropping system of sorghum and clover in terms of quantity and quality of forage yield, a two-year experiment was conducted in a semi-arid region of Iran”
e1“the S100C100 system had a significant advantage over other treatments and can be a suitable alternative for sorghum and clover monoculture systems in semi-arid regions”
e2“simultaneous increase of the quantity and quality of forage”
Claim · model-written summary
The S100C100 system can be a suitable alternative to sorghum and clover monoculture systems in semi-arid regions.
- Treatment
- S100C100 systeme1
- Outcome
- suitable alternative for sorghum and clover monoculture systems in semi-arid regionse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“intercropping system of sorghum and clover in terms of quantity and quality of forage yield, a two-year experiment was conducted in a semi-arid region of Iran”
e1“the S100C100 system had a significant advantage over other treatments and can be a suitable alternative for sorghum and clover monoculture systems in semi-arid regions”
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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.