Response of maize phenology and grain yield to various nitrogen rates and plant spacing at Bako, West Ethiopia

Begizew, Golla; Chalchisa, Desalegn

doi:10.17352/ojps.000016

Cited by 6 publications

(2 citation statements)

References 14 publications

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“…This might be due to that higher plant densities under narrow row spacing, induce competition among crop plants for different growth resources such as light, nutrient, water and air. The result is similar to Golla B et al 2019. Increasing nitrogen level has increased days to 50% tasseling due to prolonged vegetative growth period. The result is similar to result of Imran et al (15).…”

Section: Discussionsupporting

confidence: 76%

Identification of Optimum Plant Population and Nitrogen Dose in Maize for Mid Hills Conditions of Nepal

Chaulagain,

Bhattarai,

Karki

et al. 2023

Agron J Nepal

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An experiment was conducted in the summer seasons of 2021 and 2022 at the National Agronomy Research Centre's Farm Khumaltar to find out the appropriate row spacing and optimum nitrogen dose for maize. The experiment was laid out in a split plot design where nitrogen levels were allocated in the main plot and row spacing was assigned in subplots. The four different nitrogen levels were 120:60:40 N:P2O5:K2O kg ha-1, 150:60:40 N:P2O5:K2O kg ha-1, 180:60:40 N:P2O5:K2O kg ha-1 and 210:60:40 N: P2O5:K2O kg ha-1. Four different rows spacing were 75 cm, 60 cm, 50 cm and 43 cm. Seeds were sown at 25 cm apart. The individual plot size was 4m x 3m. Maize variety BGBY POP was used in the experiment. The sowing dates were 6 May and 19 May in 2021 and 2022 respectively. In the combined analysis of two-year data, days to 50% tasseling was found significant in 150:60:40 N: P2O5:K2O kg ha-1 while other traits were found non-significant. The mean grain yield was 4.29 t ha-1. Few traits were found significant in subplot factor i.e., cob diameter (4.38 cm), cob length (16.72 cm), ear height (107.1 cm) and seed per row (28.84) were found superior to other treatments within traits while all other traits in subplot factor were non-significant in pool analysis. Late maize sowing in the second year and rainfall during earthing up affected maize performance and gave lower maize yield. From the experiment, we could say that sowing of maize should be done within the second week of May and more experiments need to be done to conclude nitrogen optimization.

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Section: Discussionsupporting

confidence: 76%

Identification of Optimum Plant Population and Nitrogen Dose in Maize for Mid Hills Conditions of Nepal

Chaulagain,

Bhattarai,

Karki

et al. 2023

Agron J Nepal

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“…Higher nitrogen concentration in the root zone during early growth stages is favorable for achieving high crop yield (Hammad et al, 2018). Various stages of maize such as days to tasseling, days to silking, physiological maturity, and seed filling stage are affected by nitrogen application rate (Karki et al, 2020) (Begizew and Desalegn, 2019). Nitrogen plays a critical role in crop phenology, which is one of the most important components in determining yield and yield attribution characteristics of maize (Sharifi and Namvar, 2016).…”

Section: Effect On Growth and Phenology Of Maizementioning

confidence: 99%

A Review on Impact of Different Nitrogen Management Techniques on Maize (Zea mays L.) Crop Performance

Kafle,

Bhandari,

Neupane

et al. 2023

AgroEnviron. Sustain.

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Nitrogen (N), as a primary nutrient requirement of maize (Zea mays L.), plays a critical role in its development and productivity. Proper nitrogen management practices involve a delicate balance between providing an adequate amount of this nutrient and mitigating potential environmental impacts. When implemented effectively, these practices can significantly improve corn production. An adequate nitrogen supply promotes vigorous vegetative growth, contributing to strong stalks and an abundance of leaves, which are essential for maximizing the plant's photosynthetic capacity. This lush foliage, in turn, leads to increased photosynthesis and carbohydrate production, providing the energy maize needs throughout the reproductive stage to develop and fill its kernels. In addition, nitrogen is closely linked to kernel development. Well-timed and dosed nitrogen applications can result in larger, well-filled ears with plump kernels, ultimately increasing both the quantity and quality of the maize yield. Environmental considerations, such as reducing nitrogen runoff and greenhouse gas emissions, are important for maintaining ecosystems and mitigating climate change. Thus, this review article highlights the need for a holistic approach to nitrogen management, combining innovative techniques with sustainable agricultural practices, to ensure food security and environmental conservation in maize production systems.

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Plant density and nitrogen fertilization optimization on sorghum grain yield in Mali

et al. 2021

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Sorghum [Sorghum bicolor (L.) Moench], a staple food crop in Mali, has low yields for several reasons including that many farmers do not have the financial resources to purchase state-of-the-art genetics and fertilizers and information is not available on how to optimize yields for heirloom variety. To improve their economic and environmental sustainability, Mali farmers need to understand how to invest their limited resources. In many situations this involves the use of open-pollinated varieties that have a range of tillering capabilities. This study determined the best population density and nitrogen (N) fertilization combinations for eight locally available sorghum varieties. The research was conducted in 2018 and 2019 and the experimental design was split-split-plot randomized block, the treatments were two plant densities (26,600 and 53,300 plants ha -1 ), three N levels (0 kg ha -1 , 89 kg ha -1 , and 178 kg ha -1 ), and eight varieties that had a range of tillering characteristics. Each treatment was replicated three times and six of the varieties were open pollinated. Results showed that each variety had a different yield response to plant density and N rate. For example, the tall guinea (hybrids FADDA and PABLO) and the short durra-caudatum A12-79 cultivar produced higher yields when planted at 53,300 plants ha -1 and Abbreviations: D1, 26,600 plants ha -1 ; D2, 53,300 plants ha -1 ; MRR, marginal rate of return; N0, nitrogen rate of 0 kg ha -1 ; N1, nitrogen rate of 89 kg ha -1 ; N2, nitrogen rate of 178 kg ha -1 .This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

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Response of maize phenology and grain yield to various nitrogen rates and plant spacing at Bako, West Ethiopia

Cited by 6 publications

References 14 publications

Identification of Optimum Plant Population and Nitrogen Dose in Maize for Mid Hills Conditions of Nepal

Identification of Optimum Plant Population and Nitrogen Dose in Maize for Mid Hills Conditions of Nepal

A Review on Impact of Different Nitrogen Management Techniques on Maize (Zea mays L.) Crop Performance

Plant density and nitrogen fertilization optimization on sorghum grain yield in Mali

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