Effect of plant row spacing and herbicide use on weed aboveground biomass and corn grain yield

Acciares, H.A.; Zuluaga,

doi:10.1590/s0100-83582006000200011

Cited by 19 publications

(17 citation statements)

References 18 publications

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“…Also, dense planting increased ears, stover and total yields by 25.07, 30.94 and 28.55 %, respectively. These results are in agreement with those reported by other investigators of them Porter et al (1997), Bavec & Bavec (2002), Widdicombe &Thelen (2002, Acciares & Zuluaga (2006), Maddonni et al (2006), Singh & Singh (2006) and Williams et al (2014). But, Abouziena et al (2008) found that the highest 100-grain weight and grain weight/ ear were recorded when maize was planted with low plant population.…”

Section: Weed Control Effectsupporting

confidence: 92%

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Effect of Weed Control Treatments and Planting Density in Maize (Zea mays L.)

2016

Egypt. J. Agron.

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HE PRESENT study was carried out in the Experimental Farm, …..Ghazala Village, Fac. Agric., Zagazig Univ., El-Sharkia Governorate, Egypt, during two successive seasons 2014 and 2015 seasons. Aim of this study find out the effect of four weed control treatments (unweeded, hand hoeing twice, Harness herbicide + hand hoeing once and Harness herbicide) and two planting densities of 24000 and 34000 plants/ fad o on growth, yield and yield components of maize (Zea mays L.) (S.C. 178 yellow). According to obtained results, weed control treatments applied recorded at par higher averages of growth attributes of maize i.e. plant height (cm), number of leaves/ plant (No.), leaves area/ plant (cm 2 ), leaf area index (LAI), leaves dry weight (g) and chlorophyll content (SPAD) than unweeded one. Also, weed control treatments had significant effects on most yield and yield components due to any weeding treatments which had at par higher averages than the un-weeded control. Planting density had no significant effect on most growth attributes of maize except plant height, number of above green leaves per plant, and LAI due to increase of planting density from 24000 to 34000 plants/ fad. Densely planting (34000 plants/ fad) had significant effects on most yield and yield components except ear length (cm), number of grains/ row (No.), number of row/ ear (No.) and harvest index (HI) while, number of ears per plant No.) was decreased. The interaction between factors had significant effects on most growth and some yield components. Application of weed control treatments was affective in depressing the competition of weeds to maize plants and hence growth and yield components of maize were improved.

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Section: Weed Control Effectsupporting

confidence: 92%

“…On the other hand, Acciares & Zuluaga (2006) indicated that weeded treatments and higher planting density resulted the highest grain yield in comparison to un-weeded and lower planting density. Also, Widdicombe & Thelen (2002) stated that yield increased up to 10% by increasing planting density.…”

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confidence: 94%

Effect of Weed Control Treatments and Planting Density in Maize (Zea mays L.)

2016

Egypt. J. Agron.

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“…This less competition led to more uniform root and leaf distribution that promoted more effective interception of PAR (IPAR) and moderate density favored better utilization of intercepted light. Acciaresi and Zuluaga (2006) reported that the grain yields were 30 and 33 per cent higher under 35 × 35 cm pattern over 70 × 17.5 cm, respectively. Fanadzo et al (2010) also reported that closer square planting of 45 × 38 cm recorded higher green cob yield and grain yield (33460 and 12547 kg ha -1 , respectively) than rectangular pattern of 90 × 19 cm at eastern Cape, South Africa.…”

Section: Maize Grain Yieldmentioning

confidence: 97%

“…Maddonni et al (2001a) have detected that maize leaf orientation could react to filling empty spaces (e.g., intra or inter-row) due to plant spatial arrangement. Acciaresi and Zuluaga (2006) reported that in clay loamy soils, the grain yield was 30 and 33 per cent higher under 35 × 35 cm pattern over 70 × 17.5 cm, respectively. Fanadzo et al (2010) indicated that closer square planting of 45 × 38 cm recorded higher green cob yield and grain yield than rectangular pattern of 90 × 19 cm at Eastern Cape, South Africa.…”

Section: Introductionmentioning

confidence: 96%

Effect of Square Planting and Nitrogen Scheduling on Yield and Micrometeorological Parameters in Maize

Selvakumar¹,

Velayudham²,

Thavaprakaash³

2016

JAS

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Altering plant spatial distribution induces changes in micro-meteorology of crop canopy and have cumulative effect on yield. Creation of suitable plant spatial distribution is indispensable to explore the beneficial effects of spatial pattern and it could be possible only through altering rectangular spatial distribution, which is commonly practiced in maize. Most of the nitrogen (N) scheduling approaches are growth stages based without considering crop demand and soil fertility status which may not yield better, warrants need based N management for better production in maize. The present study has investigated effects of spatial pattern and nitrogen scheduling on intercepted photosynthetically active radiation (IPAR), light extinction co-efficient ('k'), leaf temperature (LT) and productivity of maize. The experiments were conducted during 2011 and 2012 at Tamil Nadu Agricultural University, Coimbatore. Treatments were laid out in split-plot design and replicated thrice. Treatments were: six levels of spatial pattern (60 × 25, 30 × 30, 35 × 35, 40 × 40, 45 × 45 and 50 × 50 cm). Growth stage based and need based approach of leaf color chart based (LCC) nitrogen scheduling were imposed. Field experimental results indicated that maize canopy under 30 × 30 and 35 × 35 cm spatial pattern intercepted 10 to 15% more light compared to rectangular pattern (60 × 25 cm). The 'k' value and leaf temperature were reduced under this pattern. Higher maize grain yield (GY) was recorded at 35 × 35 cm spatial distribution. The LCC based N scheduling recorded higher values of IPAR, LT and lower 'k' values. Square planting favored canopy micro-meterological parameters and which in turn enhanced grain yield of maize.

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“…When irrigation water is used to supplement rainwater the overall water productivity is improved (Oweis and Hachum, 2012). Several studies has linked row spacing to plant growth and soil water storage (Eberbach and Pala, 2005;Acciaresi and Zuluaga, 2006;Onyango, 2009;Pandey et al, 2013). Rainwater harvesting applied to dry areas is usually implemented with wider catchments hence the traditional IRWH was initially tested on 2 m to 20 m row spacing.…”

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confidence: 99%

Effect of Water Regime and Runoff Strip Width on Soil Water Balance for an Integrated In-Field Rainwater Harvesting

Mavimbela

Rensburg

2014

Arid Land Research and Management

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Integrating micro-flood irrigation with in-field rainwater harvesting (IRWH) was proposed and experiments were conducted in the 2007-2008 production season at Parady's Experimental Farm of the University of the Free State, South Africa. Three water regimes, dryland (DL), supplemental (SPI), and full irrigation (FI), were tested with 1, 2, and 3 m runoff strip width (RSW) to determine their effects on soil water balance components for the integrated IRWH. Four blocks with nine subplots were prepared for the 3 Â 3 split plot factorial experimental design. Plots were 30 m long with a standard 1 m width. Site specific data were used to estimate rainfallrunoff and deep drainage functions. Soil water content (SWC) was measured with a Neutron water meter. Evapo-transpiration (ET) was partitioned into evaporation and transpiration using a b parameter. Deep drainage was the least significantly affected. Rainfalls not less than 24 mm had significantly higher gains on change in SWC for the 2 m and 3 m RSW. During dry spells these RSWs had significantly higher SWC deficit. For the vegetative and reproductive growth stages evaporation from the 3 m RSW constituted not less than 60% of ET compared to less than 40% from 1 m RSW. The 1 m RSW had significantly higher ET and T, irrespective of water regime with the highest values from irrigation treatments. The 1 m RSW can, therefore, be used with either FI or SPI to optimize soil water balance for the integrated IRWH water management.

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Effect of plant row spacing and herbicide use on weed aboveground biomass and corn grain yield

Cited by 19 publications

References 18 publications

Effect of Weed Control Treatments and Planting Density in Maize (Zea mays L.)

Effect of Weed Control Treatments and Planting Density in Maize (Zea mays L.)

Effect of Square Planting and Nitrogen Scheduling on Yield and Micrometeorological Parameters in Maize

Effect of Water Regime and Runoff Strip Width on Soil Water Balance for an Integrated In-Field Rainwater Harvesting

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