The Effects of Different Levels of Nitrogen on Yield and Yield Components of Rainfed Wheat in Two Regions of North Khorasan

Bavar, Mahdi; Abad, H. Heidari Sharif; Noormohamadi, Gh.

doi:10.4236/oje.2016.67042

Cited by 10 publications

(11 citation statements)

References 23 publications

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“…Also, increased nitrogen fertilization led to increase production of wheat yield due to strong response to additions of nitrogen, which is regarded as the main element in the construction of amino acids, proteins and enters in many physiological processes in plant. These results are in harmony with those recorded by Abd El-Lattief (2013), Abou-Keriasha & Essa (2014), Bavar et al (2016) and El-Temsah (2017).…”

Section: Effect Of Nitrogen Levelssupporting

confidence: 91%

Improving Wheat Productivity by Application Types Different of Fertilizer under Newly Reclaimed Soil Conditions

2018

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T WO FIELD experiments were carried out at the Experimental Farm (Demo) of the Faculty of Agriculture, Fayoum University, during 2015/2016 and 2016/2017 seasons, to study the effect of organic and mineral nitrogen fertilizers under foliar application of micronutrients treatments on yield and its components of wheat plants. The experimental design was split-split plot arrangement in randomized complete blocks design with four replications where organic fertilizers were considered in the main plot, nitrogen levels arranged in the sub plot and the subsub plot was foliar application treatments. Results indicated that significant differences between organic fertilizers. Applying poultry manure at the rate of 10m 3 /fad. gave the highest values of all studied characters. Addition, mineral nitrogen fertilizer at 80kg N/fad led to significantly increased in the all studied characters as compared to using (60kg N/fad and 40kg N/fad). Significant differences were observed among the foliar spraying treatments. Spraying in the mixture micronutrients (Fe, Mn and Zn at 100g/200L water/fad) recorded the highest values for all studied characters. From the above results it could be recommended that fertilizing wheat plants by poultry manure at the rate of 10m 3 /fad and foliar spraying with mixture micronutrients (Fe, Mn and Zn at 100g/200L water/fad) as well as addition 80kg N/fad, to improve the productivity of wheat yield under newly reclaimed soil conditions in Fayoum Governorate.

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Section: Effect Of Nitrogen Levelssupporting

confidence: 91%

Improving Wheat Productivity by Application Types Different of Fertilizer under Newly Reclaimed Soil Conditions

2018

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“…Nitrogen is a primary element of proteins, Rubisco, and chlorophyll, which influence many critical processes including photosynthesis and root development (Abid et al., 2016; Shangguan, Shao, Ren, Zhang, & Xue, 2004). Efficient N application increases photosynthesis rate, leaf area index, and radiation use efficiency, optimizing wheat yield and quality (Abid et al., 2016; Bavar, Abad, & Noormohamadi, 2016). Nonetheless, several studies have shown poor N fertilizer recovery in many cereal cropping systems, resulting in 50–60% of applied N fertilizer not being effectively utilized by the crop (Gupta & Khosla, 2012; Peng et al., 2010; Ruisi et al., 2015).…”

Section: Introductionmentioning

confidence: 99%

Grain yield, quality, and spectral characteristics of wheat grown under varied nitrogen and irrigation

Walsh

Torrion

Liang

et al. 2020

Agrosystems Geosci & Env

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Nitrogen and water are two key factors for wheat production due to their major roles in plant growth and development, photosynthesis, yield, and grain protein content. Plant uptake of water and N is fundamentally interactive. Our objectives were: (a) to analyze the effects of different irrigation (IR) and N rates on spring wheat (Triticum aestivum L.) yield and grain protein, and spectral indices (relative greenness [SPAD] and Normalized Difference Vegetation Index [NDVI]), and (b) to identify the optimum IR and N requirements for wheat grain production in semi‐arid conditions of Montana and Idaho. This article details the results from field experiments conducted at three locations for two growing seasons (6 site‐years). Relative greenness measured by SPAD chlorophyll meter was used to assess plant N status, whereas NDVI was used for both plant N status and estimation of wheat yield. Both SPAD and NDVI values increased as N and IR application rates increased. The SPAD and NDVI values explained 80 and 84% of the variation in wheat yield, respectively. We found that IR at 75% of evapotranspiration (ET) throughout the growing season is adequate to optimize wheat yield and grain protein. Nitrogen rate was not correlated with wheat yield at any of the site‐years. Based on this study's results, approximately 150 kg N ha−1 (total, soil residual N plus N added as fertilizer) may be sufficient to optimize yield and grain protein content of irrigated spring wheat in semi‐arid cropping systems.

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“…Accordingly, assimilates are produced to strengthen spikelet developments. Thus, a more incredible spikelets/spike was formed (23). The nitrogen fertilizer application was increasing in the share of reproductive organs, including the number of spikelets per spike (24).…”

Section: Spikelets/spikementioning

confidence: 99%

Influence of mycorrhizal fungi and biochar on nitrogen use efficiency correlated with yield and yield components of wheat

et al. 2022

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Mycorrhizal symbiosis increases mineral nutrient uptake, especially when nitrogen applies to the fields together with biochar. To evaluate the influence of the biochar application and different levels of nitrogen on nitrogen use efficiency (NUE), yield and yield components of wheat associated with arbuscular mycorrhizal fungi (AMF) A factorial experiment with in randomized complete block design with four replications was implemented for two years (2016-2018). The experimental factors included nitrogen at four levels (urea source with 46% nitrogen) 0, 50, 100 and 150 kg N/ha, Rhizophagus Irregularis inoculum at two levels (without and with application), and biochar at three levels 0, 4 and 8 ton/ha. The results demonstrated that plant inoculated with mycorrhiza inoculum combined with 4 ton/ha of biochar showed a significant increase in, root colonization (8%). The application of will be This study proves that application of 100 kg N/ha with an amount of 4 ton/ha of biochar and AMF inoculationhas a useful and effective role in the enhancement of growth and yieldof wheat.

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The Effects of Different Levels of Nitrogen on Yield and Yield Components of Rainfed Wheat in Two Regions of North Khorasan

Cited by 10 publications

References 23 publications

Improving Wheat Productivity by Application Types Different of Fertilizer under Newly Reclaimed Soil Conditions

Improving Wheat Productivity by Application Types Different of Fertilizer under Newly Reclaimed Soil Conditions

Grain yield, quality, and spectral characteristics of wheat grown under varied nitrogen and irrigation

Influence of mycorrhizal fungi and biochar on nitrogen use efficiency correlated with yield and yield components of wheat

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