Outlook on fertilizer use efficiency in the tropics

Baligar, V. C.; Bennett, O. L.

doi:10.1007/bf01073907

Cited by 104 publications

(29 citation statements)

References 13 publications

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“…Urea is one of the most used nitrogen fertilizer in agriculture [10] and also in Brazil [9]. About 40% -70% nitrogen losses from the applied fertilizers [11] has been reported elsewhere in the world, since nutrient application is not very often in synchrony to crop needs [12]. The low nitrogen use efficiency (NUE) of Fertilizer-N occurs as a result of leaching, mineralization, erosion and denitrification processes [12]- [15].…”

Section: Nitrogen Fertilizersmentioning

confidence: 99%

Enhancing Nutrient Use Efficiency Using Zeolites Minerals—A Review

Bernardi¹,

Polidoro²,

Monte³

et al. 2016

ACES

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On tropical soils, liming and balanced nutrient supply are essential to ensure high crop yield and quality. An adequate agronomic nutrient management should be a balanced nutrition and fertilizers are the key factor on supplying nutrients. Urea is the most commonly used fertilizer-N source, despite potential losses by NH 3 volatilization. Thus, new fertilizers technologies are needed to support the increasing demand and avoid the low N use efficiency (NUE). The reduction of NH 3 -N volatilization can be achieved by the use of natural aluminosilicates with nitrogenous fertilizer materials. This review consolidates the current status on the subject and the experience with the application of aluminosilicates as a slow release plant-nutrient fertilizer. Volatilization losses of nitrogenous fertilizers on the soil surface could be reduced with addition of natural aluminosilicates. Clay minerals (zeolites) are widely used in many countries to reduce NH 3 volatilization from amide N fertilizers, such as urea, besides several organic forms of nitrogenous sources. The reduction in ammonia losses by volatilization and the increased efficiency of N utilization and slow release nature of urea-zeolite mixtures when urea is used together with aluminosilicates was demonstrated in laboratory, greenhouse and field experiments with different crops and environments. These results indicate that aluminosilicates minerals used with urea mineral fertilizer can enhance the efficiency of this source by improving the nitrogen use through the control of retention of ammonium ion, contributing to increasd N uptake and crop yields.

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Section: Nitrogen Fertilizersmentioning

confidence: 99%

Enhancing Nutrient Use Efficiency Using Zeolites Minerals—A Review

Bernardi¹,

Polidoro²,

Monte³

et al. 2016

ACES

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“…However, fertility can be successfully improved using both inorganic and organic fertilizers. The major drawbacks of inorganic fertilizers are their low accessibility to resource-poor farmers (Garrity 2004) and their low efficiency in highly weathered soils (Baligar and Bennett 1986). While organic fertilizers are able to improve nutrient use efficiency, under tropical conditions they mineralize rapidly in soil and benefits through increases in organic matter last only for a few growing seasons (Bol et al 2000;Diels et al 2004;Tiessen et al 1994).…”

Section: Introductionmentioning

confidence: 99%

Maize yield and nutrition during 4 years after biochar application to a Colombian savanna oxisol

et al. 2010

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“…The recovery efficiency of applied fertilizer is low: ≤50% for N, <10% for P, and ~40% for K [2] [3]. However, in recent years, sustainable agriculture has received considerable attention from environmentalists, agriculturists, and consumers [4].…”

Section: Introductionmentioning

confidence: 99%

Effects of Combined Application of Inorganic Fertilizer and Organic Manures on Nitrogen Use and Recovery Efficiencies of Hybrid Rice (Palethwe-1)

Moe¹,

Mg²,

Win³

et al. 2017

AJPS

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We conducted two field experiments to investigate combined effects of organic and inorganic fertilizers on nitrogen use and recovery efficiencies of hybrid rice (Palethwe-1) during dry and wet seasons, 2015. Four levels of inorganic fertilizer (0%, 50%, 75%, and 100% NPK), based on recommended rates of 150 kg N ha , were used with cow manure, poultry manure, and vermicompost (5 t·ha −1 each) in a split-plot design with three replicates. In both seasons, with 50% NPK, the N uptake level achieved with poultry manure was similar to that obtained with 75% and 100% NPK. The greatest N use, internal, agronomic N use, and recovery efficiencies were obtained with 50% NPK + poultry manure, but were similar to those obtained from cow manure and vermicompost subplots. As the amount of applied N from organic and inorganic fertilizer increased, the N use efficiency and related parameters decreased, due to similar yields among plots with different NPK application levels. Poultry manure resulted in the highest significant correlations between applied N and N accumulation, followed by cow manure and vermicompost, in both seasons. Neither chemical fertilizer nor organic manure alone led to optimum N use and N recovery efficiencies. The combination of 50% inorganic fertilizer (75 kg N ha 1044ganic fertilizers and organic manures had the benefits not only in reducing the need for chemical fertilizers but also in improving N uptake by hybrid rice (Palethwe-1) leading to the better environment.

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Outlook on fertilizer use efficiency in the tropics

Cited by 104 publications

References 13 publications

Enhancing Nutrient Use Efficiency Using Zeolites Minerals—A Review

Enhancing Nutrient Use Efficiency Using Zeolites Minerals—A Review

Maize yield and nutrition during 4 years after biochar application to a Colombian savanna oxisol

Effects of Combined Application of Inorganic Fertilizer and Organic Manures on Nitrogen Use and Recovery Efficiencies of Hybrid Rice (Palethwe-1)

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