Abstract
A field experiment was conducted during (pre-kharif) (FebruaryMay) seasons of 2014 and 2015 at the Instruc- tional Farm, Pundibari, Cooch Behar, West Bengal, to evaluate the effect of maize (Zea mays L.) intercropped with cowpea [Vigna unguiculata L.) and nutrient-management practices on yield attributes, yield, nutrient uptake and competition indices. Among the cropping system, sole crop resulted in the highest yield attributes, grain yield (3,913 kg/ha), stover yield (6,565 kg/ha), harvest index (37.21%), uptake of nitrogen (101.36 kg/ha), phosphorus (19.80 kg/ha) and potassium (110.90 kg/ha). However, growing of maize as an intercrop with cowpea in a 2 : 2 row ratio resulted in the highest grain yield (3,249 kg/ha), stover yield (5,707 kg/ha) and harvest index (36.19%) than 2 : 4 row ratio combination. Among the nutrient-management practices, 75% recommended dose of fertilizer (RDF) + phosphate-solubilizing bacteria (PSB) + Azotobacter + vermicompost (VC) @ 5.0 t/ha resulted in the highest yield attributes, grain yield (3,684 kg/ha), stover yield (6,207 kg/ha), harvest index (37.14%) and NPK uptake. However, productivity system in terms of maize-equivalent yield (MEY), land-equivalent ratio (LER), relative crowding coeffi- cient (RCC), competition index (CI), aggressivity, competition ratio (CR), land-equivalent coefficient (LEC), area time-equivalent ratio (ATER) and monetary advantage was found to be higher in 2 : 2 row ratio, followed by 2 : 4 row ratio combination. Thus, maize intercrop with cowpea in 2 : 2 row ratio combination and supplied with 75% RDF + PSB + Azotobacter + vermicompost (VC) @ 5.0 t/ha (N ) improved the productivity of sole crop as well as 3 intercrop system.
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Claims 18
Claim · model-written summary
Sole maize yielded more grain (3,913 kg/ha) than maize intercropped with cowpea
- Treatment
- sole crope1
- Outcome
- grain yielde1
- Direction
- higheste1
- Value
- 3,913 kg/hae1
- Comparator
- intercropped with cowpeae2
- Setting
- Pundibari, Cooch Behar, West Bengale3
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“sole crop resulted in the highest yield attributes, grain yield (3,913 kg/ha), stover yield (6,565 kg/ha), harvest index (37.21%), uptake of nitrogen (101.36 kg/ha), phosphorus (19.80 kg/ha) and potassium (110.90 kg/ha)”
e2“maize (Zea mays L.) intercropped with cowpea”
e3“Instruc- tional Farm, Pundibari, Cooch Behar, West Bengal”
Claim · model-written summary
Sole maize had the highest stover yield (6,565 kg/ha) among cropping systems
- Treatment
- sole crope1
- Outcome
- stover yielde1
- Direction
- higheste1
- Value
- 6,565 kg/hae1
- Comparator
- intercropped with cowpeae2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“sole crop resulted in the highest yield attributes, grain yield (3,913 kg/ha), stover yield (6,565 kg/ha), harvest index (37.21%), uptake of nitrogen (101.36 kg/ha), phosphorus (19.80 kg/ha) and potassium (110.90 kg/ha)”
e2“maize (Zea mays L.) intercropped with cowpea”
Claim · model-written summary
Sole maize had the highest harvest index (37.21%) among cropping systems
- Treatment
- sole crope1
- Outcome
- harvest indexe1
- Direction
- higheste1
- Value
- 37.21%e1
- Comparator
- intercropped with cowpeae2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“sole crop resulted in the highest yield attributes, grain yield (3,913 kg/ha), stover yield (6,565 kg/ha), harvest index (37.21%), uptake of nitrogen (101.36 kg/ha), phosphorus (19.80 kg/ha) and potassium (110.90 kg/ha)”
e2“maize (Zea mays L.) intercropped with cowpea”
Claim · model-written summary
Sole maize had the highest nitrogen uptake (101.36 kg/ha) among cropping systems
- Treatment
- sole crope1
- Outcome
- uptake of nitrogene1
- Direction
- higheste1
- Value
- 101.36 kg/hae1
- Comparator
- intercropped with cowpeae2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“sole crop resulted in the highest yield attributes, grain yield (3,913 kg/ha), stover yield (6,565 kg/ha), harvest index (37.21%), uptake of nitrogen (101.36 kg/ha), phosphorus (19.80 kg/ha) and potassium (110.90 kg/ha)”
e2“maize (Zea mays L.) intercropped with cowpea”
Claim · model-written summary
Sole maize had the highest phosphorus uptake (19.80 kg/ha) among cropping systems
- Treatment
- sole crope1
- Outcome
- phosphoruse1
- Direction
- higheste1
- Value
- 19.80 kg/hae1
- Comparator
- intercropped with cowpeae2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“sole crop resulted in the highest yield attributes, grain yield (3,913 kg/ha), stover yield (6,565 kg/ha), harvest index (37.21%), uptake of nitrogen (101.36 kg/ha), phosphorus (19.80 kg/ha) and potassium (110.90 kg/ha)”
e2“maize (Zea mays L.) intercropped with cowpea”
Claim · model-written summary
Sole maize had the highest potassium uptake (110.90 kg/ha) among cropping systems
- Treatment
- sole crope1
- Outcome
- potassiume1
- Direction
- higheste1
- Value
- 110.90 kg/hae1
- Comparator
- intercropped with cowpeae2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“sole crop resulted in the highest yield attributes, grain yield (3,913 kg/ha), stover yield (6,565 kg/ha), harvest index (37.21%), uptake of nitrogen (101.36 kg/ha), phosphorus (19.80 kg/ha) and potassium (110.90 kg/ha)”
e2“maize (Zea mays L.) intercropped with cowpea”
Claim · model-written summary
Maize intercropped with cowpea in a 2 : 2 row ratio had higher grain yield (3,249 kg/ha) than the 2 : 4 row ratio
- Treatment
- intercrop with cowpea in a 2 : 2 row ratioe1
- Outcome
- grain yielde1
- Direction
- higheste1
- Value
- 3,249 kg/hae1
- Comparator
- 2 : 4 row ratio combinatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“growing of maize as an intercrop with cowpea in a 2 : 2 row ratio resulted in the highest grain yield (3,249 kg/ha), stover yield (5,707 kg/ha) and harvest index (36.19%) than 2 : 4 row ratio combination”
e2“maize (Zea mays L.) intercropped with cowpea”
Claim · model-written summary
Maize intercropped with cowpea in a 2 : 2 row ratio had higher stover yield (5,707 kg/ha) than the 2 : 4 row ratio
- Treatment
- intercrop with cowpea in a 2 : 2 row ratioe1
- Outcome
- stover yielde1
- Direction
- higheste1
- Value
- 5,707 kg/hae1
- Comparator
- 2 : 4 row ratio combinatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“growing of maize as an intercrop with cowpea in a 2 : 2 row ratio resulted in the highest grain yield (3,249 kg/ha), stover yield (5,707 kg/ha) and harvest index (36.19%) than 2 : 4 row ratio combination”
e2“maize (Zea mays L.) intercropped with cowpea”
Claim · model-written summary
Maize intercropped with cowpea in a 2 : 2 row ratio had higher harvest index (36.19%) than the 2 : 4 row ratio
- Treatment
- intercrop with cowpea in a 2 : 2 row ratioe1
- Outcome
- harvest indexe1
- Direction
- higheste1
- Value
- 36.19%e1
- Comparator
- 2 : 4 row ratio combinatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“growing of maize as an intercrop with cowpea in a 2 : 2 row ratio resulted in the highest grain yield (3,249 kg/ha), stover yield (5,707 kg/ha) and harvest index (36.19%) than 2 : 4 row ratio combination”
e2“maize (Zea mays L.) intercropped with cowpea”
Claim · model-written summary
Maize with 75% RDF plus PSB, Azotobacter and vermicompost had the highest grain yield (3,684 kg/ha) among nutrient-management practices
- Treatment
- 75% recommended dose of fertilizer (RDF) + phosphate-solubilizing bacteria (PSB) + Azotobacter + vermicompost (VC) @ 5.0 t/hae1
- Interactor
- phosphate-solubilizing bacteriae1symbiont
- Second interactor
- Azotobacter
Azotobactere1symbiont - Outcome
- grain yielde1
- Direction
- higheste1
- Value
- 3,684 kg/hae1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“75% recommended dose of fertilizer (RDF) + phosphate-solubilizing bacteria (PSB) + Azotobacter + vermicompost (VC) @ 5.0 t/ha resulted in the highest yield attributes, grain yield (3,684 kg/ha), stover yield (6,207 kg/ha), harvest index (37.14%) and NPK uptake”
e2“maize (Zea mays L.) intercropped with cowpea”
Claim · model-written summary
Maize with the 75% RDF nutrient package had the highest stover yield (6,207 kg/ha) among nutrient-management practices
- Treatment
- 75% recommended dose of fertilizer (RDF) + phosphate-solubilizing bacteria (PSB) + Azotobacter + vermicompost (VC) @ 5.0 t/hae1
- Interactor
- phosphate-solubilizing bacteriae1symbiont
- Second interactor
- AzotobacterAzotobactere1symbiont
- Outcome
- stover yielde1
- Direction
- higheste1
- Value
- 6,207 kg/hae1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“75% recommended dose of fertilizer (RDF) + phosphate-solubilizing bacteria (PSB) + Azotobacter + vermicompost (VC) @ 5.0 t/ha resulted in the highest yield attributes, grain yield (3,684 kg/ha), stover yield (6,207 kg/ha), harvest index (37.14%) and NPK uptake”
e2“maize (Zea mays L.) intercropped with cowpea”
Claim · model-written summary
Maize with the 75% RDF nutrient package had the highest harvest index (37.14%) among nutrient-management practices
- Treatment
- 75% recommended dose of fertilizer (RDF) + phosphate-solubilizing bacteria (PSB) + Azotobacter + vermicompost (VC) @ 5.0 t/hae1
- Interactor
- phosphate-solubilizing bacteriae1symbiont
- Second interactor
- AzotobacterAzotobactere1symbiont
- Outcome
- harvest indexe1
- Direction
- higheste1
- Value
- 37.14%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“75% recommended dose of fertilizer (RDF) + phosphate-solubilizing bacteria (PSB) + Azotobacter + vermicompost (VC) @ 5.0 t/ha resulted in the highest yield attributes, grain yield (3,684 kg/ha), stover yield (6,207 kg/ha), harvest index (37.14%) and NPK uptake”
e2“maize (Zea mays L.) intercropped with cowpea”
Claim · model-written summary
Maize with the 75% RDF nutrient package had the highest NPK uptake among nutrient-management practices
- Treatment
- 75% recommended dose of fertilizer (RDF) + phosphate-solubilizing bacteria (PSB) + Azotobacter + vermicompost (VC) @ 5.0 t/hae1
- Interactor
- phosphate-solubilizing bacteriae1symbiont
- Second interactor
- AzotobacterAzotobactere1symbiont
- Outcome
- NPK uptakee1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“75% recommended dose of fertilizer (RDF) + phosphate-solubilizing bacteria (PSB) + Azotobacter + vermicompost (VC) @ 5.0 t/ha resulted in the highest yield attributes, grain yield (3,684 kg/ha), stover yield (6,207 kg/ha), harvest index (37.14%) and NPK uptake”
e2“maize (Zea mays L.) intercropped with cowpea”
Claim · model-written summary
The 2 : 2 row ratio had higher maize-equivalent yield and land-equivalent ratio than the 2 : 4 row ratio
- Treatment
- 2 : 2 row ratioe1
- Outcome
- maize-equivalent yield (MEY), land-equivalent ratio (LER)e1
- Direction
- highere1
- Comparator
- 2 : 4 row ratio combinatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“productivity system in terms of maize-equivalent yield (MEY), land-equivalent ratio (LER), relative crowding coeffi- cient (RCC), competition index (CI), aggressivity, competition ratio (CR), land-equivalent coefficient (LEC), area time-equivalent ratio (ATER) and monetary advantage was found to be higher in 2 : 2 row ratio, followed by 2 : 4 row ratio combination”
Claim · model-written summary
The 2 : 2 row ratio had higher relative crowding coefficient and competition index than the 2 : 4 row ratio
- Treatment
- 2 : 2 row ratioe1
- Outcome
- relative crowding coeffi- cient (RCC), competition index (CI)e1
- Direction
- highere1
- Comparator
- 2 : 4 row ratio combinatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“productivity system in terms of maize-equivalent yield (MEY), land-equivalent ratio (LER), relative crowding coeffi- cient (RCC), competition index (CI), aggressivity, competition ratio (CR), land-equivalent coefficient (LEC), area time-equivalent ratio (ATER) and monetary advantage was found to be higher in 2 : 2 row ratio, followed by 2 : 4 row ratio combination”
Claim · model-written summary
The 2 : 2 row ratio had higher aggressivity and competition ratio than the 2 : 4 row ratio
- Treatment
- 2 : 2 row ratioe1
- Outcome
- aggressivity, competition ratio (CR)e1
- Direction
- highere1
- Comparator
- 2 : 4 row ratio combinatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“productivity system in terms of maize-equivalent yield (MEY), land-equivalent ratio (LER), relative crowding coeffi- cient (RCC), competition index (CI), aggressivity, competition ratio (CR), land-equivalent coefficient (LEC), area time-equivalent ratio (ATER) and monetary advantage was found to be higher in 2 : 2 row ratio, followed by 2 : 4 row ratio combination”
Claim · model-written summary
The 2 : 2 row ratio had higher land-equivalent coefficient, area time-equivalent ratio and monetary advantage than the 2 : 4 row ratio
- Treatment
- 2 : 2 row ratioe1
- Outcome
- land-equivalent coefficient (LEC), area time-equivalent ratio (ATER) and monetary advantagee1
- Direction
- highere1
- Comparator
- 2 : 4 row ratio combinatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“productivity system in terms of maize-equivalent yield (MEY), land-equivalent ratio (LER), relative crowding coeffi- cient (RCC), competition index (CI), aggressivity, competition ratio (CR), land-equivalent coefficient (LEC), area time-equivalent ratio (ATER) and monetary advantage was found to be higher in 2 : 2 row ratio, followed by 2 : 4 row ratio combination”
Claim · model-written summary
The 2 : 2 maize-cowpea intercrop with 75% RDF plus PSB, Azotobacter and vermicompost improved productivity relative to sole maize
- Treatment
- 75% RDF + PSB + Azotobacter + vermicompost (VC) @ 5.0 t/hae1
- Interactor
- PSBe1symbiont
- Second interactor
- AzotobacterAzotobactere1symbiont
- Outcome
- productivitye1
- Direction
- improvede1
- Comparator
- sole crope1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“maize intercrop with cowpea in 2 : 2 row ratio combination and supplied with 75% RDF + PSB + Azotobacter + vermicompost (VC) @ 5.0 t/ha (N ) improved the productivity of sole crop as well as 3 intercrop system”
e2“maize (Zea mays L.) intercropped with cowpea”
The same questions in other papers
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See all 834 papers →8 of 10 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.