Maize-grain legume intercropping for enhanced resource use efficiency and crop productivity in the Guinea savanna of northern Ghana

Kermah, M.; Franke, A.C.; Adjei-Nsiah, S.; Ahiabor, B. D. K.; Abaidoo, Robert C.; Giller, Ken E.

doi:10.1016/j.fcr.2017.07.008

Cited by 170 publications

(123 citation statements)

References 33 publications

(53 reference statements)

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“…This was due to the better utilization of special and temporal utilization of land and natural resources in intercropping with additional advantage of cowpea and higher market price of cowpea, compared to sole cropping of maize and cowpea. Our results agree with the findings of other authors such as Kermaha, 2017;Himmatrao et al, 2014;Sharma et al, 2006;Behera, 2009 andMeena et al, 2006. Competition index were recorded highest under 2:4 row ratio combination compared to 2:2 row ratio combination. This might be due to more number of maize plants per unit area and lesser competition for space and nutrients under 2:2 row ratio combination compared to 2:4 row ratio combination which increased the yield of maize under this system ( Table 5).…”

Section: Effect Of Cropping System and Nutrient Management On Competisupporting

confidence: 94%

Competitive Indices and Production of Maize (Zea mays L.) and Cowpea (Vigna unguiculata) Intercropping System as Influence by Nutrient Management Practices

Chhetri¹,

Sinha²

2019

IJBSM

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during 2013 and 2014. To evaluate the yield attributes, yield and competition function of maize (Zea mays L.) and cowpea (Vigna unguiculata) intercropping system. The grain yield, stover yield and harvest index of maize were significantly higher in case of pure stand of maize than intercropping systems. Among the integrated nutrient management practices, treatment supplied 75% RDF+PSB+Azotobacter+vermicompost @ 5.0 t ha-1 produced highest seed yield, stover yield, harvest index and yield attributes. The values of seed yield (938 and 943 kg ha-1), stem yield (1421 and 1435 kg ha-1), harvest index of cowpea (40.09 and 39.97%) and yield attributes was significantly higher in sole crop. Among the integrated nutrient management practices, treatment supplied with 75% RDF+ PSB+Azotobacter+vermicompost @ 5.0 t ha-1 produced highest seed yield (833 and 837 kg ha-1), stem yield (1349 and 1358 kg ha-1), harvest index (38.50 and 38.54%) and yield attributes. Maize equivalent yield, competition ratio, LER, RCC, competition index, aggressivity, ATER, LEC and monetary advantage was found to be higher with 2:2 row ratio combinations. Integrated nutrient management practices, maize equivalent yield, competition ratio, LER, RCC, competition index, aggressivity, ATER, LEC and monetary advantage found to be higher under 75% RD F+PSB+Azotobacter+vermicompost @ 5.0 t ha-1. It may be concluded that maize grown as intercrop with cowpea in 2:2 row ratio combinations and supplied with 75% RDF+PSB+Azotobacter+vermicompost @ 5.0 t ha-1 (N 3) is best for obtaining overall gain.

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Section: Effect Of Cropping System and Nutrient Management On Competisupporting

confidence: 94%

Competitive Indices and Production of Maize (Zea mays L.) and Cowpea (Vigna unguiculata) Intercropping System as Influence by Nutrient Management Practices

Chhetri¹,

Sinha²

2019

IJBSM

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“…We conclude that adjusting farm management to favour abundance or diversity of AMF cannot be widely recommended based on current knowledge and that gains in agricultural yields and sustainability (e.g. efficient use of inputs, reduced nutrient losses) are probably more easily achievable through rectifying soil nutrient deficiencies, diversification through crop rotation and intercropping (especially with legumes), crop selection and breeding, and improved understanding of G (crop) × E × M (Kirkegaard & Hunt, ; Leiser et al ., ; Kermah et al ., ; Plaza‐Bonilla et al ., ; Wani et al ., ). We suggest research on AMF in agroecosystems be routinely placed into the context of the broader literature on crop agronomy, breeding and agroecosystem sustainability.…”

Section: Discussionmentioning

confidence: 99%

Little evidence that farmers should consider abundance or diversity of arbuscular mycorrhizal fungi when managing crops

2018

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Contents Summary 1092 I. Introduction 1093 II. Investigating activity of AMF in agroecosystems 1093 III. Crop benefit from AMF: agronomic and mycorrhizal literature differ 1094 IV. Flawed methodology leads to benefits of mycorrhizas being overstated 1094 V. Rigorous methodology suggests low colonisation by AMF can sometimes reduce crop yield 1095 VI. Predicting when mycorrhizas matter for crop yield 1096 VII. Crop genotype 1099 VIII. Fungal genotype 1100 IX. Complex interactions between the mycorrhizal fungal and soil microbial communities 1102 X. Phosphorus-efficient agroecosystems 1102 XI. Conclusions 1103 Acknowledgements 1104 References 1104 SUMMARY: Arbuscular mycorrhizal fungi (AMF) are ubiquitous in agroecosystems and often stated to be critical for crop yield and agroecosystem sustainability. However, should farmers modify management to enhance the abundance and diversity of AMF? We address this question with a focus on field experiments that manipulated colonisation by indigenous AMF and report crop yield, or investigated community structure and diversity of AMF. We find that the literature presents an overly optimistic view of the importance of AMF in crop yield due, in part, to flawed methodology in field experiments. A small body of rigorous research only sometimes reports a positive impact of high colonisation on crop yield, even under phosphorus limitation. We suggest that studies vary due to the interaction of environment and genotype (crop and mycorrhizal fungal). We also find that the literature can be overly pessimistic about the impact of some common agricultural practices on mycorrhizal fungal communities and that interactions between AMF and soil microbes are complex and poorly understood. We provide a template for future field experiments and a list of research priorities, including phosphorus-efficient agroecosystems. However, we conclude that management of AMF by farmers will not be warranted until benefits are demonstrated at the field scale under prescribed agronomic management.

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“…Sorghum-pigeon pea mixed intercropping recorded higher biomass, economic returns and ultimately reduced the risk associated to farming under adverse agro-climatic conditions by minimizing the variability in productivity and economic returns (Rao and Singh 1990). On marginal soils, cowpea and groundnut performed better than soybean owing to better utilization of environmental and soil resources and thus cereal-cowpea mixed seeding was suggested to reduce the risk of a sharp decline in economic returns (Kermah et al 2017).…”

Section: Economic Performance Of Sorghum-legumes Intercropping Systemsmentioning

confidence: 99%

Forage sorghum-legumes intercropping: effect on growth, yields, nutritional quality and economic returns

Iqbal¹,

Hamid²,

Ahmad

et al. 2019

Bragantia

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Cereal-legumes intercropping is among the most economical and effective agronomic strategies to boost forage biomass production, nutritional quality and monetary returns. This review synthesizes the research findings on how intercropping affects productivity, quality, competitiveness and economic viability of sorghum-legumes mixed, row and strip intercropping systems under varied pedo-climatic conditions. Though component crops show yield reductions in row (additive and row-replacement series), mixed (seed blended crops) and strip intercropping systems, in general overall productivity per unit land area increases to a great extent. The significantly higher resource capturing with better utilization efficacy by intercrops in temporal and spatial dimensions helps explain their greater productivity. In addition, forage intercrops result in improved nutritional quality as legumes contain protein in double quantity than cereals. Cereal-legumes intercropping systems yield CROP PRODUCTION AND MANAGEMENT-Article

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Maize-grain legume intercropping for enhanced resource use efficiency and crop productivity in the Guinea savanna of northern Ghana

Cited by 170 publications

References 33 publications

Competitive Indices and Production of Maize (Zea mays L.) and Cowpea (Vigna unguiculata) Intercropping System as Influence by Nutrient Management Practices

Competitive Indices and Production of Maize (Zea mays L.) and Cowpea (Vigna unguiculata) Intercropping System as Influence by Nutrient Management Practices

Little evidence that farmers should consider abundance or diversity of arbuscular mycorrhizal fungi when managing crops

Forage sorghum-legumes intercropping: effect on growth, yields, nutritional quality and economic returns

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