Effects of intercropping and fertilizer application on weed control and performance of cassava and maize

Olasantan, F. O.; Lucas, E. O.; Ezumah, H.C.

doi:10.1016/0378-4290(94)90009-4

Cited by 45 publications

(20 citation statements)

References 11 publications

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“…Mulch from crop residues has been reported to increase productivity in bananas (Bananuka et al, 2000) and plantains (Salau et al, 1992) and to suppress weeds in other crops (Ramakrishna et al, 2006). In addition, the improved leaf area production of a healthy banana plant has been reported to reduce weed pressure (Olasantan et al, 1994). There were differences in responses among regions, and these were partially attributed to differences in nutrient deficiencies.…”

mentioning

confidence: 87%

The agronomic and economic benefits of fertilizer and mulch use in highland banana systems in Uganda

Wairegi

Asten

2010

Agricultural Systems

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mentioning

confidence: 87%

The agronomic and economic benefits of fertilizer and mulch use in highland banana systems in Uganda

Wairegi

Asten

2010

Agricultural Systems

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“…After the establishment of the weed seedlings, resource competition becomes the cover crop's main weed suppressing mechanism (Hollander et al, 2007). The decrease in weed incidence in corn through intercropping is dependent on several factors, such as corn cultivar, climate conditions (Kuchinda et al, 2003), sowing time, intercropped species (Skóra Neto, 1993) and fertilizer rates (Olasantan et al, 1994).…”

Section: Introductionmentioning

confidence: 99%

Weed control via intercropping with gliricidia: II. corn crop

et al. 2009

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-A reduction in herbicide use is one of modern agriculture's main interests and several alternatives are being investigated with this objective, including intercropping. Gliricídia (Gliricidia sepium) mulch has no allelopathic effect on corn or beans but significantly decreased the population of some weed species. The objective of this study was to evaluate green ear and grain yield in corn cultivars as a response to weed control achieved via intercropping with gliricidia. A completely randomized block design with five replicates and split-plots was used. Cultivars AG 1051, AG 2060, BRS 2020, and PL 6880 (assigned to plots) were submitted to the following treatments: no hoeing, hoeing (performed at 20 and 40 days after sowing the corn), and corn intercropped with gliricidia. Gliricidia was grown in a transplanting system to ensure uniform germination and fast establishment in the field. Seeding was made in 200-cell trays with one seed per cell (35 mL volume). The plants emerged two to three days after sowing and were transplanted to a permanent site two to three days after emergence. Corn was sown on the same day gliricidia was transplanted. Sixteen weed species occurred at different frequencies, with uneven distribution in the experimental area. Cultivars AG 1051 and AG 2060 were the best with reference to most characteristics employed to evaluate green corn yield. Cultivar AG 1051 provided the highest grain yield. The highest green ear yield and grain yield values were obtained with hoeing. However, the fact that intercropped plots showed intermediate yield between the values obtained for hoed and non-hoed plots indicates that gliricidia was beneficial to corn, and exerted a certain level of weed control.Keywords: Zea mays, Gliricidia sepium, cultivars, green corn, grain yield.RESUMO -Um dos principais interesses da agricultura moderna é a redução no uso de herbicidas; para isso, diversas alternativas estão sendo investigadas, inclusive a consorciação. A cobertura do solo com ramos de gliricídia (Gliricidia sepium) não tem efeito alelopático sobre o milho ou feijão, mas diminui significativamente a população de algumas espécies de plantas daninhas. O objetivo deste estudo foi avaliar os rendimentos de espigas verdes e de grãos de cultivares de milho, em resposta ao controle de plantas daninhas, por meio da consorciação com gliricídia. Utilizou-se o delineamento de blocos ao acaso com parcelas subdivididas e cinco repetições. Os cultivares 1051, AG 2060, BRS 2020 e PL 6880 (atribuídos às parcelas) foram submetidos aos seguintes tratamentos: sem capina, duas capinas (realizadas aos 20 e 40 dias após a semeadura) e consorciação com gliricídia. Esta planta foi cultivada em um sistema de transplantio, para garantir germinação uniforme e rápido estabelecimento no campo. A semeadura foi feita em bandejas de 200 células, com uma semente por célula (volume de 35 mL). As plantas emergiram dois a três dias após a semeadura e foram transplantadas para o local definitivo dois a três dias após a emergência. O milho...

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“…Weed biomass in intercropped pl ot s de cr ea se d in 47 fi el d ex pe ri me nt s, increased in four of them and varied in three other ones, compared to monocropped plots (Lie bman & Davi s, 2000). Decr ease d weed incidence on maize by means of intercropping is dependent on several factors, such as type of maize cultivar, climate conditions (Kuchinda et al ,200 3); sow ing per iod, int erc rop ped species (Skóra Neto, 1993); and fertilizer rates (Olasantan et al, 1994). Intercropping systems might be more advantageous than monocropping systems due to their more efficient competition fo r th e avai la bl e re so ur ces or to th ei r alel loph atic effect on weeds.…”

Section: Introductionmentioning

confidence: 99%

Effects of weed control through cowpea intercropping on mayze morphology and yield

Gomes

Silva

et al. 2007

Planta daninha

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-Intercropping combined with competitive maize cultivars can reduce the use of herbicides to control weeds. The objective of this work was to evaluate the effects of intercropping cowpea and maize, as well as hand-weeding on maize morphology and yield. The experimental design was in randomized complete blocks, with treatments arranged in split-plots and five replications. The plots consisted of four maize cultivars (BA 8512, BA 9012, EX 4001, EX 6004) and the split-plots consisted of the following treatments: no-weeding; twice hand-weeding (20 and 40 days after sowing); and intercropping with cowpea ('Sempre Verde' cultivar), both maize and cowpea sown at the same time. The variables evaluated were: maize fresh green ears and grain yield; characteristics of internodes, leaves, tassels, ears, grains; plant height and ear insertion height; number of weed plants and species; fresh and dry biomass of weed species and cowpea. Ten weed species were outstanding during the experiment, many of them from the Poaceae family. No interactions were found between weed control method and maize cultivars for most variables evaluated; and plants from hand-weeded split-plots showed superior mean values compared to plants from nonweeded and intercropped split-plots, both not differing from each other. The cowpea was inefficient in controlling weed, reducing the maize yields and not producing any grain. The maize cultivars 'BA 8512' and 'BA 9012 showed the highest mean green ear yield, and the highest grain yield in hand-weeded, no-weeded and intercropped split-plots. On the other han d, the maize cultivar 'EX 600 4' sho wed such hig h means only in no-weeded and intercropped split-plots. 'EX 4001 presented the worst means in these variables for handweeded, no-weeded ant intercropped split-plots Keywords: Zea mays L., green ears, grain yield, competition, Vigna unguiculata (L) Walp. RESUMO -

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Effects of intercropping and fertilizer application on weed control and performance of cassava and maize

Cited by 45 publications

References 11 publications

The agronomic and economic benefits of fertilizer and mulch use in highland banana systems in Uganda

The agronomic and economic benefits of fertilizer and mulch use in highland banana systems in Uganda

Weed control via intercropping with gliricidia: II. corn crop

Effects of weed control through cowpea intercropping on mayze morphology and yield

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