Effect of irrigation and nitrogen fertilization on agronomic traits of sweet corn1

Souza, Epitácio José de; Cunha, Fernando França da; Magalhães, Fernando Fagner; Silva, Thiago Ramos da; Santos, Osvaldir Feliciano dos

doi:10.1590/1983-40632015v4533628

Cited by 8 publications

(7 citation statements)

References 19 publications

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“…These values were similar to the ones obtained by Oliveira et al (2011) and Souza et al (2015), who observed maximum values of WUE when the plant showed water deficit, with a decrease as higher water depths were applied. Cultivars Frevo and Samba showed WUE with quadratic behavior, in which the water depths which maximized this efficiency were estimated in 88% and 82.4% of crop evaporation replacement, resulting in 1.22 kg m -3 and 1.47 kg m -3 of water density, respectively.…”

Section: Resultssupporting

confidence: 90%

Increase in pea productivity associated with irrigation management

et al. 2018

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Proper irrigation management is crucial to obtain high yields of pea, since its cultivation is recommended in cold and dry seasons. Taking into account the great genetic diversity, we considered necessary to evaluate cultivars which best adapt to the intrinsic conditions of Cerrado Region, as it presents low fertility soil, long dry period in the winter, drought periods (veranicos) in rainy season, mainly in January and February (summer). Thus, the aim of this study was to evaluate adaptability of green-pea cultivars under different irrigation depths in Northeast Region of state of Mato Grosso do Sul. The experiment was installed in a split plot scheme, with four irrigation depths [50, 75, 100 and 125% of crop evapotranspiration (ETc)] and at subplots, four pea cultivars (Forró, Frevo, Pagode and Samba) in a randomized block design with three replications. Pod length, number and mass of grains per pod, number of pods per plant, plant length, productivity and efficiency of water use were evaluated. Excess water supply (water stress) or shortage (water deficit) can cause decrease in the productivity of pea crop for green grains, considering replacement of 114.81% of Etc, the most recommended for the crop. Cultivar Forró, showed the best productive performance in relation to other cultivars, in the climatic conditions of Southern Cerrado (Mato Grosso do Sul, Brazil).

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Section: Resultssupporting

confidence: 90%

Increase in pea productivity associated with irrigation management

et al. 2018

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“…The values of CV and in all the variables (Table 2) were within the limits reported in the literature (Pizolato Neto et al, 2016;Silva et al, 2013Silva et al, , 2016Souza et al, 2016), what guarantees a good accuracy in the experiment. However, the CV and is not best suited to assess the accuracy of a study, since its estimates considers only the residual variance as a proportion of the average of the experiment (Resende and Duarte, 2007).…”

Section: Resultssupporting

confidence: 82%

Growth and yield of baby corn as influenced by nitrogen topdressing

Araújo¹,

Feitosa²,

Silva³

et al. 2017

Afr. J. Agric. Res.

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Baby corn maize (Zea mays L.) is a highly profitable alternative to farmers due to its short crop duration, being harvested at the juvenile stage. It demands large amounts of nutrients in a short time, especially nitrogen, which is responsible for the rapid development of crop. This study aimed to evaluate the effect of topdressing application of different doses of nitrogen on the vegetative and spikelet productivity features in the baby corn crop in Janaúba -Minas Gerais. The experiment was laid out in randomized block design with three replications and four treatments. The treatments comprised four doses of nitrogen (0, 40, 80 and 120 kg ha -1 N applied as urea) top dressed at the V6 (sixty leave with visible auricle) growth stage, which occurs 30 days after sowing the seed. Nitrogen topdressing doses did not interfere in vegetative characteristics of baby corn cultivar Al Bandeirante, but the productivity of spikelet responded to the increasing doses of nitrogen, being the highest productivity at a dose of 120 kg ha -1 N.

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“…The Brazilian scenario does not present great popularity for sweet corn, although edaphoclimatic conditions contribute to a productivity of more than 13.00 t ha -1 (Luz et al, 2014), the technological cultivation conditions maintain productivity below those observed in countries such as the USA, with around 17.17 t ha -1 (FAO, 2018). P r o v i s i o n o f a p p r o p r i a t e management forms allows the country to target higher productivity (Souza et al, 2015(Souza et al, , 2016 and the insertion of this product into large consumer markets. In addition, this scenario contributes to this species being inserted in rural properties as an alternative for…”

Section: Scientific Communicationmentioning

confidence: 99%

Development and production of sweet corn applied with biostimulant as seed treatment

et al. 2020

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Sweet corn has potential to increase farmer’s income. Thus, biostimulants may contribute to increase productivity of sweet corn, being indicated and used in various crops. The objective of this study was to evaluate the effects of applying biostimulant on sweet corn crops and to establish the ideal dose aiming to increase the crop’s agronomic characteristics. The experiment was installed in the municipality of Chapadão do Sul-MS and was conducted from November 15, 2012 to February 19, 2013. Treatments were composed of eight biostimulant doses (0.0, 4.0, 8.0, 12.0, 16.0, 20.0, 24.0 and 28.0 mL kg-1 of seeds), arranged in a randomized complete block design with four replicates. The responses of the variables to the best dose of biostimulant were 12.4, 15.3, 13.7, 12.4, 15.7, 16.4, 15.4 and 12.5 mL kg-1, respectively for plant height, first ear insertion height, stem diameter, final population, number of ears per hectare, ear mass with and without straw and ear index. Considering that the ear with straw is the source of economic return to the producer, the dose of 16.4 mL kg-1 is the best indication in this condition.

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Effect of irrigation and nitrogen fertilization on agronomic traits of sweet corn1

Cited by 8 publications

References 19 publications

Increase in pea productivity associated with irrigation management

Increase in pea productivity associated with irrigation management

Growth and yield of baby corn as influenced by nitrogen topdressing

Development and production of sweet corn applied with biostimulant as seed treatment

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