Optimizing Nitrogen Fertilization Regimes for Sustainable Maize (<i>Zea mays</i> L.) Production on the Volcanic Soils of Buea Cameroon

Ngosong, Christopher; Bongkisheri, Victorine; Tanyi, Clovis B.; Nanganoa, Lawrence Tatanah; Tening, Aaron Suh

doi:10.1155/2019/4681825

Cited by 20 publications

(22 citation statements)

References 36 publications

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“…Nitrogen doses did not have any effects on the number of ears plant −1 as this is genetically controlled rather than by management factors. In line with our findings, Sharma et al [51] and Ngosong et al [52] also reported non-significant effects of N doses (0-240 kg ha −1 ) on the number of ears plant −1 . In our study, N doses above 120 kg ha −1 did not show any effects on most agronomic traits.…”

Section: Effect Of Nitrogen In Agronomic and Yield Attributing Traitssupporting

confidence: 92%

“…Beatty and Wong [26] also disseminated that reducing nutrient loss could simultaneously increase nutrient efficiency through the application of optimum dose; the minimum dose that produces maximum biomass and grain yield. In accord with our findings, several previous studies reported higher NUEs at lower N levels while evaluating improved and hybrids varieties of maize at 0-280 kg ha −1 N doses [52,58,[76][77][78]80,[82][83][84]. The range of yield increment kg −1 N application was 22.01-38.16 kg at N doses of 45-150 kg ha −1 [76,80,82,84].…”

Section: Nitrogen Uptake and Use Efficiencysupporting

confidence: 91%

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Optimizing N Fertilization for Increasing Yield and Profits of Rainfed Maize Grown under Sandy Loam Soil

et al. 2021

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The optimum dose of fertilizers for crops varies with soil, agro-ecology, and crop management practices. Optimizing application dose is critical to reduce nutrient loss to the environment and increase nitrogen use efficiency (NUE), crop yields, and economic return to farmers. An experiment was conducted to determine the optimum N dose for increasing maize (Zea mays L. cv, Manakamana-3) yield, NUE, and farm profits under rainfed conditions. Five levels of N (0, 60, 120, 180, and 240 kg ha−1), and a non-fertilized treatment were tested in a randomized complete block design with three replications. Effects of each treatment on yield and yield attributing traits, plant lodging and Sterility (plants with no cob or grain formation), NUE, and stay green trait of maize were recorded. Application of N above 120 kg ha−1 (N120) did not have any significant effects on yield and yield components. Nitrogen, at N120 and above, produced highly fertile plants (though sterility slightly increased at N180 and N240), higher N uptake, and lower dead leaf area (18–27%). N120 produced the highest agronomic; yield increase per unit of N application (AEN—26.89 kg grain kg−1 N) and physiological efficiency of N (PEN—42.67 kg grain kg−1 N uptake), and net benefit (USD 500.43). Considering agronomic, economic, and NUE factors, an N dose of 120 kg ha−1 was found optimum for the cultivation of rainfed maize (Manakamana-3) under sandy loam soil.

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Section: Effect Of Nitrogen In Agronomic and Yield Attributing Traitssupporting

confidence: 92%

Section: Nitrogen Uptake and Use Efficiencysupporting

confidence: 91%

Optimizing N Fertilization for Increasing Yield and Profits of Rainfed Maize Grown under Sandy Loam Soil

et al. 2021

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“…The authors found similarly shorter cob length in treatments that received no nitrogen fertilization and longest cob length under higher N rate treatments. Ngosong et al [47] in their study, showed that different N rates had significant variation on maize cob length in the range of 14.5 to 18 cm as compared to the control, while [10] also reported that application of nitrogen generally promotes growth and yield components of maize and results in longer cob length.…”

Section: Discussionmentioning

confidence: 94%

Maize Growth and Yield Response to Incremental Rates of Nitrogen in N-Depleted Lixisols in Northern Ghana

Appiah

Kugbe

Rufai

2020

IJPSS

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To help economize fertilizer use and predict soil-based and site-specific fertilization regimes in crop production, knowledge on crop response to incremental rates of nutrition have long been identified to play a significant role. In the nutrient-poor lixisols of northern Ghana where bulk of Ghanaian maize is produced, the response of maize growth and yield to eleven rates of N fertilization was evaluated in 2019 as a first step in developing a tool that could predict site-specific nitrogen rates for optimum maize production. The rates were 00, 15, 30, 45, 60, 75, 90, 105, 120, 135, and 150 kg/ha; laid out in a Randomized Complete Block Design. Collected maize growth and yield data were subjected to analyses of variance, where significantly different means were separated at a probability of 5% using the least significant difference. The study revealed no significant differences in plant height from the third to sixth week after planting, days to 50% flowering, 100 grain weight, and leaf area index at sixth week after planting. However, plant height and leaf area index at ninth week, cob weight, cob length, straw weight and grain yield were significantly affected by N fertilizer rates. Increasing nitrogen fertilizer rates had a pronounced effect on later-stages of growth, on grain yield and on yield components of maize. Application of 120 to 150 kg/ha N achieved statistically similar, and maximum growth and yield parameters compared to lower rates. The findings provide essential agronomic data required to relate soil test results with corresponding maize yield.

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“…Studies have shown that farmers use different types of inorganic fertilizer in order to improve soil fertility and increase crop yield (Jaza-Folefack, 2009;Chianu et al, 2012;Kamga et al, 2013;Asongwe et al, 2014;Tsozue et al, 2015;Tayoh et al, 2017;Mishra et al, 2018;Engwali et al, 2019;Ngosong et al, 2019;Depigny et al, 2019;Thuries et al, 2019;Tambi et al, 2019;Temegne et al, 2020;Buvaneshwari et al, 2020;Kelly and Naseem, 2020;Djoufack et al, 2020). However, few studies have tried to examine the types of inorganic fertilizer used by agroforestry and non-agroforestry practicing farmers which has been done in this study.…”

Section: Types Of Inorganic Fertilizer Used By Agroforestry and Non-amentioning

confidence: 99%

Inorganic fertilizer use among agroforestry and non-agroforestry practicing farmers in South West Cameroon: A comparative assessment and policy ramifications

Tsufac¹,

Awazi²,

Yerima³

2021

Afr. J. Agric. Res.

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Continuous and excessive use of inorganic fertilizers by farmers across the world is causing more harm than good to croplands. This is because most of these inorganic fertilizers are toxic, which in essence defeats the very purpose for which they are produced. This paper sought to comparatively assess the use of inorganic fertilizer among agroforestry and non-agroforestry practicing farmers in south west Cameroon. Data was collected from both primary and secondary sources, and analyzed using appropriate descriptive and inferential statistics. Findings revealed that, more non-agroforestry practicing farmers were using inorganic fertilizer, in large quantities, and frequently, when compared to their agroforestry practicing counterparts. From logistic regression predictions, it was found that, variables such as level of education, cultivation of cash crops, number of farms, farm size, age, and farm experience had an inverse causal relationship (p<0.05) with agroforestry practicing farmers' use of inorganic fertilizer, and a direct causal relationship (p<0.05) with non-agroforestry practicing farmers' use of inorganic fertilizer. Meanwhile, variables such as income level, household size, cultivation of food crops, cultivation of market gardening crops, membership in farming group, access to extension services, and access to markets had a direct causal relationship (p<0.05) with the use of inorganic fertilizer for both agroforestry and non-agroforestry practicing farmers. It was equally found that, a direct causal relationship (p<0.05) exist between the non-practice of agroforestry and the use of inorganic fertilizer, while an inverse causal relationship (p<0.05) exist between the practice of agroforestry and the use of inorganic fertilizer. This indicates that the practice of agroforestry has huge potentials to contribute towards limiting the use of inorganic fertilizers by farmers. On the basis of these findings, it is recommended that policy makers pay more attention to agro-ecological practices like agroforestry in order to limit the use of inorganic fertilizer by farmers.

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Optimizing Nitrogen Fertilization Regimes for Sustainable Maize (Zea mays L.) Production on the Volcanic Soils of Buea Cameroon

Cited by 20 publications

References 36 publications

Optimizing N Fertilization for Increasing Yield and Profits of Rainfed Maize Grown under Sandy Loam Soil

Optimizing N Fertilization for Increasing Yield and Profits of Rainfed Maize Grown under Sandy Loam Soil

Maize Growth and Yield Response to Incremental Rates of Nitrogen in N-Depleted Lixisols in Northern Ghana

Inorganic fertilizer use among agroforestry and non-agroforestry practicing farmers in South West Cameroon: A comparative assessment and policy ramifications

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