Evaluation of Pigeon Pea Lines for Biological Soil Decompaction

Godoy, R.; Bacchi, Osny Oliveira Santos; Moreira, Fernando Almeida; Reichardt, Klaus

doi:10.1155/2009/609717

Cited by 4 publications

(2 citation statements)

References 8 publications

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“…The undisturbed continuous pore system and the absence of a hardpan due to no-till also contributed to the observed high infiltration (Thierfelder and Wall, 2009). The deep-rooting characteristic of pigeonpea is also thought to contribute significantly to improved infiltration (Godoy et al, 2009). Our results suggest that maize-pigeonpea intercropping in the long-term may lead to greater rainfall infiltration resulting in more water being available for crop growth and offset the effects of dry spells.…”

Section: Rainfall Infiltrationmentioning

confidence: 60%

Maize–grain legume intercropping is an attractive option for ecological intensification that reduces climatic risk for smallholder farmers in central Mozambique

Rusinamhodzi¹,

Corbeels²,

Nyamangara³

et al. 2012

Field Crops Research

320

254

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Many farmers in central Mozambique intercrop maize with grain legumes as a means to improve food security and income. The objective of this study was to understand the farming system, and to evaluate the suitability of maize-legume intercropping to alleviate the biophysical and socio-economic constraints faced by smallholder farmers in Ruaca and Vunduzi villages, central Mozambique. To achieve this we characterised the farming systems and measured grain yields, rainfall infiltration, economic returns and acceptability of maize-legume intercrops under different N and P application rates. Two intercropping strategies were tested: (a) an additive design of within-row intercropping in which legume was intercropped with alternating hills of maize within the same row; maize plant population was the same as sole crop maize, and (b) a substitutive design with distinct alternating rows of maize and legume (local practice). Fertiliser treatments imposed on all treatments were: (i) no fertiliser, (ii) 20 kg P ha −1 , (iii) 20 kg P ha −1 + 30 kg N ha −1 , and (iv) 20 kg P ha −1 + 60 kg N ha −1 . Intercrops were relatively more productive than the corresponding sole crops; land equivalent ratios (LER) for within-row intercropping ranged between 1.1 and 2.4, and between 1.0 and 1.9 for distinct-row intercropping. Average maize yield penalty for intercropping maize and pigeonpea in the within-row was small (8%) compared with 50% in the distinct-row design; average (season × fertiliser) sole maize yield was 3.2 t ha −1 . Intercropping maize and cowpea in within-row led to maize yield loss of only 6%, whereas distinct-row intercropping reduced maize yield by 25% from 2.1 t ha −1 of sole maize (season × fertiliser). Cowpea yield was less affected by intercropping: sole cowpea had an average yield of 0.9 t ha −1 , distinct-row intercropping (0.8 t ha −1 ) and the within-row intercropping yielded 0.9 t ha −1 . Legumes were comparatively less affected by the long dry spells which were prevalent during the study period. Response to N and P fertiliser was weak due to poor rainfall distribution. In the third season, maize in rotation with pigeonpea and without N fertiliser application yielded 5.6 t ha −1 , eight times more than continuous maize which was severely infested by striga (Striga asiatica) and yielded only 0.7 t ha −1 . Rainfall infiltration increased from 6 mm h −1 to 22 mm h −1 with long-term maize-legume intercropping due to a combination of good quality biomass production which provided mulch combined with no tillage. Intercropping maize and pigeonpea was profitable with a rate of return of at least 343% over sole maize cropping. Farmers preferred the within-row maize-legume intercropping with an acceptability score of 84% because of good yields for both maize and legume. Intercropping increased the labour required for weeding by 36% compared with the sole crops. Farmers in Ruaca faced labour constraints due to extensification thus maize-pigeonpea intercropping may improve productivity and help reduce the area cultivated. ...

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Section: Rainfall Infiltrationmentioning

confidence: 60%

Maize–grain legume intercropping is an attractive option for ecological intensification that reduces climatic risk for smallholder farmers in central Mozambique

Rusinamhodzi¹,

Corbeels²,

Nyamangara³

et al. 2012

Field Crops Research

320

254

View full text Add to dashboard Cite

show abstract

“…Já na profundidade de 0,20-0,40 m, o MG apresentou o menor valor de umidade do solo (Tabela 5), provavelmente, devido ao estabelecimento da competição por água entre o milho e a fabácea. Os resultados podem indicar que a competição se estabelece em profundidades do solo superiores a 0,20 m. O guandu possui sistema radicular vigoroso e profundo, destaca-se a raiz principal (pivotante), que pode alcançar mais de 2 m de profundidade (Godoy et al, 2009;Alvarenga et al, 1996). Dela originam-se várias outras, mais finas, secundárias, localizadas principalmente nos 0,30 m de profundidade do solo (Souza et al, 2007).…”

Section: Umidade Do Solounclassified

Temperatura e umidade do solo no consórcio de milho com Crotalaria spectabilis e Cajanus cajan em sistema orgânico

Trevisan

Silva

Fontanétti

et al. 2021

RSD

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A espécie e densidade de adubos verdes no consórcio com o milho modificam os padrões de competição interespecífica podendo alterar as respostas de temperatura e umidade do solo. Objetivou-se, neste estudo, analisar os efeitos da Crotalaria spectabilis e do Cajanus cajan na temperatura e umidade do solo, ao longo dos estádios de desenvolvimento do milho cultivado em consórcio, em sistema orgânico. O delineamento experimental foi blocos casualizados, com quatro repetições. Os tratamentos consistiram em três consórcios de milho: MC - Crotalaria spectabilis (5 plantas m -1); MG - Cajanus cajan (5 plantas m -1); MCG - Crotalaria spectabilis e Cajanus cajan (10 plantas m -1, cinco plantas de cada adubo verde), semeados na linha do milho e três tratamentos controles: M - milho; C - Crotalaria spectabilis e G - Cajanus cajan, solteiros. As leituras das temperaturas do solo foram realizadas na linha e entrelinha de semeadura, e, da umidade do solo, na linha de semeadura do milho, nos horários de 8, 12 e 17 horas, nos estádios fenológicos V5, V8, VT, R2, R4 e R6 do milho. As profundidades de avaliação foram 0-0,10, 0,10-0,20 e 0,20-0,40 m. Os horários, as profundidades e as posições linha-entrelinha influenciaram a temperatura do solo, enquanto as profundidades e os estádios fenológicos influenciaram a capacidade de retenção de umidade no solo. Os consórcios reduziram a temperatura do solo, principalmente o MG, que também reduziu a umidade do solo entre os estádios V8 e R2 do milho.

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Designing low-input upland rice-based cropping systems with conservation agriculture for climate change adaptation: A six-year experiment in M’bé, Bouaké, Côte d’Ivoire

Husson

Tano

Saito

2022

Field Crops Research

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Evaluation of Pigeon Pea Lines for Biological Soil Decompaction

Cited by 4 publications

References 8 publications

Maize–grain legume intercropping is an attractive option for ecological intensification that reduces climatic risk for smallholder farmers in central Mozambique

Maize–grain legume intercropping is an attractive option for ecological intensification that reduces climatic risk for smallholder farmers in central Mozambique

Temperatura e umidade do solo no consórcio de milho com Crotalaria spectabilis e Cajanus cajan em sistema orgânico

Designing low-input upland rice-based cropping systems with conservation agriculture for climate change adaptation: A six-year experiment in M’bé, Bouaké, Côte d’Ivoire

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