Growth and nitrogen use efficiency of irrigated maize in a semiarid region as affected by nitrogen fertilization

Valero, José Arturo de Juan; Maturano, Marisa; Ramírez, A. Artigao; Martín-Benito, José María Tarjuelo; Álvarez, José Fernando Ortega

doi:10.5424/sjar/2005031-133

Cited by 27 publications

(13 citation statements)

References 16 publications

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“…These results partially support the findings of Valero et al (2005), who reported that the LAI increased with the application of higher N and decline in LAI appeared in lower N application. In maize, the interval from V12 to V18 stage is critical for N stress since N deficiency could reduce the LAI (Cox et al, 1993).…”

Section: Crop Managementsupporting

confidence: 91%

Water and Nitrogen Productivity of Maize under Semiarid Environments

et al. 2015

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Irrigated agriculture is a facing shortage of water and N in semiarid environments where these inputs are limiting factors for crop production. Experiments were conducted to optimize the water and N requirements for maize (Zea mays L.) under semiarid environmental conditions. Crop physiological and agronomics characteristics were evaluated for three irrigation regimes and five N fertilizer levels during 2009 and 2010. The experiments were conducted in a split‐plot design by triplicating water regimes in the main plots and N levels in the subplots. Total dry matter production and crop growth rate increased with an increase in the N application rate up to 300 kg ha−1 for all irrigation regimes. In contrast, maximum grain yield was achieved with application of 250 kg N ha−1. Polynomial analysis (third order) showed that 275 kg N ha−1 was optimum for grain yield at normal irrigation. Higher amounts of irrigation and N significantly increased water use efficiency (WUE). Since optimal N rates for maximum grain yield was 250 kg ha−1 with 525 mm irrigation water ha−1 during both growing seasons, this may be considered in formulating good agricultural practices for the soil and weather conditions resembling those of this study.

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Section: Crop Managementsupporting

confidence: 91%

Water and Nitrogen Productivity of Maize under Semiarid Environments

et al. 2015

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“…The N fertilizer application 300 kg ha −1 (F 4 ) resulted in greater LAI than all other treatments. These findings are partially supported with the observation of Valero, Maturano, Ramírez, Martín-Benito, and Alvarez (2005), who concluded that the application of higher N doses linearly increased the LAI.…”

Section: Plant Crop Growth and Yieldsupporting

confidence: 83%

Offsetting land degradation through nitrogen and water management during maize cultivation under arid conditions

et al. 2018

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The best management of soil, irrigation, and crop nutrients is among major components of sustainable agriculture that reduces groundwater contamination, prevents soil degradation, and guarantees the best resource use efficiency. Trials were conducted to optimize maize (Zea mays L.) yield by experimenting various irrigation water regimes, nitrogen (N) application rates, and methods in 96 pots under arid environmental conditions during autumn 2012. Crop hydrological and agronomic characteristics were assessed under a completely randomized design with factorial arrangements. Water and N stress to the plants under observation significantly reduced the water potential, osmotic potential, and turgor pressure of the leaves. Crop growth rate and total dry matter production were significantly improved by an increase in N fertilizer application up to 300 kg ha−1 (equivalent to 4.8 g N pot−1) for all water regimes. Grain per cob, 1,000‐grain weight, and final grain yield were higher at 100% field capacity with the application of 300 kg N ha−1 under the soil N application method than those under foliar N application treatments. The best N rate for optimum grain production was attained by 300 kg ha−1 with 575‐mm supplemental irrigation water ha−1. The quadratic equation fitting revealed that the effect of N on crop growth parameters was higher than that of the supplemental irrigation; therefore, a water deficit may partly be managed by adding N to the soil. These water and N managements may be used in formulating agricultural practices to avoid degradation of lands for soil and environmental conditions similar to those of the current study warranting a field research.

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“…After this stage, CGR value declined sharply at 58 -72 DAT, and this was attributed to leaf senescence. The result was similar to earlier reports by [30] and [31]. Increased LAI and total dry matter production using younger seedlings and without standing water have resulted to higher CGR [32].…”

Section: Crop Growth Rate (Cgr) (G•m −2 •D −1 )supporting

confidence: 82%

Agronomic and Physiological Responses of Rice (<i>Oryza sativa</i> L.) under Different Water Management Systems, Fertilizer Types and Seedling Age

Ko¹,

Hirai²,

Zamora³

et al. 2017

AJPS

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A field experiment was conducted to evaluate the agronomic and physiological responses of rice under different water management systems, types of fertilizer and seedling age. This experiment was done at the farm of Agri Park, College of Agriculture, Central Experimental Station (CES), Crop Science Cluster of the University of the Philippines Los Baños, College Laguna during 2013. The strip-split plot design with three replications was used with the two types of fertilizer (vermicompost and chemical fertilizer), water management (with and without standing water) and two seedling ages (10 and 14-d old) were the treatments in the experiment. Chemical fertilizer produced the highest grain yield, total dry matter (TDM), leaf area index (LAI), net assimilation rate (NAR) and crop growth rate (CGR). Most of these characters significantly increased in 10-d old seedlings with chemical fertilizer without standing water. The shorter phyllochron and higher root pulling resistance (RPR) were observed in 10-d old seedlings without standing water. For the variety NSIC Rc 216, the use of 10-d old seedlings grown without standing water with chemical fertilizer is the optimum conditions for the better growth and high productivity.

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Growth and nitrogen use efficiency of irrigated maize in a semiarid region as affected by nitrogen fertilization

Cited by 27 publications

References 16 publications

Water and Nitrogen Productivity of Maize under Semiarid Environments

Water and Nitrogen Productivity of Maize under Semiarid Environments

Offsetting land degradation through nitrogen and water management during maize cultivation under arid conditions

Agronomic and Physiological Responses of Rice (<i>Oryza sativa</i> L.) under Different Water Management Systems, Fertilizer Types and Seedling Age

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Growth and nitrogen use efficiency of irrigated maize in a semiarid region as affected by nitrogen fertilization

Cited by 27 publications

References 16 publications

Water and Nitrogen Productivity of Maize under Semiarid Environments

Water and Nitrogen Productivity of Maize under Semiarid Environments

Offsetting land degradation through nitrogen and water management during maize cultivation under arid conditions

Agronomic and Physiological Responses of Rice (&lt;i&gt;Oryza sativa&lt;/i&gt; L.) under Different Water Management Systems, Fertilizer Types and Seedling Age

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Agronomic and Physiological Responses of Rice (<i>Oryza sativa</i> L.) under Different Water Management Systems, Fertilizer Types and Seedling Age