Nitrogen fertilizer applications to maize after alfalfa: grain yield, kernel composition, and plant mineral nutrients

2014 ◽  
Vol 37 (12) ◽  
pp. 2026-2035 ◽  
Author(s):  
Walter E. Riedell
Keyword(s):  
Grain Yield ◽  
Nitrogen Fertilizer ◽  
Mineral Nutrients ◽  
Kernel Composition

Effects of Elevated Atmospheric CO2 and its Interaction with Temperature and Nitrogen on Yield of Barley (Hordeum vulgare L.): A Meta-analysis

2021 ◽  
Author(s):  
Mekides Woldegiorgis Gardi ◽  
Bettina I.G Haussmann ◽  
Waqas Ahmed Malik ◽  
Petra Högy
Keyword(s):  
Grain Yield ◽  
Nitrogen Fertilizer ◽  
Meta Analysis ◽  
N Fertilization ◽  
Additional Stress ◽  
Hordeum Vulgare L ◽  
Grain Number ◽  
Experimental Conditions ◽  
Elevated Atmospheric Co2 ◽  
The Mean

Abstract AimsThe general aim of this meta-analysis is to synthesize and summarise the mean response of barley yield variables to elevated CO2 (eCO2) and its interaction with temperature and N fertilization. Methods The present study quantitatively synthesized the response of barley to eCO2 and its interaction with temperature, and Nitrogen (N). A meta-analysis procedure was used to analyse five yield variables of barley extracted from 76 articles to determine the effect size and the magnitude in relation to eCO2 and its interaction with temperature and N. Results CO2 enrichment increased biomass (23.8%), grain number (24.8%), grain yield (27.4%), and thousand-grain weight (5.6%). However, responses to eCO2 were affected by genotype, additional stress, and experimental conditions. In comparison, genotype “Anakin” shows the highest response of biomass (47.1%), while “Genebank accessions” had a higher grain number (46.1%) and grain yield (57.1%) under eCO2. The maximal enhancement of barley yield was observed when plants grow under a combination of eCO2 and higher nitrogen fertilizer (>100 kg ha-1). Nevertheless, biomass (-12%), and grain yield (-17%) responses were lower when eCO2 is combined with high temperature (>25 °C). It was further noted the response of barley yield to eCO2 was higher in the growth chamber than in other CO2 exposure methods. Moreover, comparing pot-rooted versus field-rooted barley plants, a higher response of biomass and grain yield was observed for pot-rooted plants. ConclusionsOverall, results suggest that the maximal barley production under eCO2 will be obtained in combination with high nitrogen fertilizer and optimal temperature (21-25 °C).

Starter Nitrogen Fertilizer Affects Rice Growth and Nitrogen Uptake but Not Grain Yield

cftm ◽  
2018 ◽  
Vol 4 (1) ◽  
pp. 1-5
Author(s):  
Jason M. Satterfield ◽  
Gurpreet Kaur ◽  
Bobby R. Golden ◽  
John M. Orlowski ◽  
Timothy W. Walker
Keyword(s):  
Grain Yield ◽  
Nitrogen Uptake ◽  
Nitrogen Fertilizer ◽  
Rice Growth

scholarly journals Replacing Synthetic Nitrogen Fertilizer with Different Types of Organic Materials Improves Grain Yield in China: A Meta-Analysis

Agronomy ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 2429
Author(s):  
Xiaoru Fan ◽  
Zekai Chen ◽  
Zihan Niu ◽  
Ruiyao Zeng ◽  
Jingmin Ou ◽  
...  
Keyword(s):  
Grain Yield ◽  
Nitrogen Fertilizer ◽  
Organic Materials ◽  
Crop Yields ◽  
Meta Analysis ◽  
Chicken Manure ◽  
Agricultural Practice ◽  
Different Types ◽  
Synthetic Nitrogen Fertilizer

Synthetic nitrogen fertilizer substitution (NSS) with different types of organic material is a cleaner agricultural practice for reducing the application of synthetic N input in farmlands while also relieving the environmental issues caused by the discharge of organic wastes. However, the effects of the NSS practice on crop yields, being the primary objective of agricultural activity, is still uncertain in China. This study conducted a meta-analysis to assess the impacts of the NSS practices with different types of organic materials on crop yields. Results showed that the average crop yield was increased by 3.4%, with significant differences under NSS, thereby demonstrating that this practice contributed to improving crop yields, especially of rice and maize. According to published reports, the NSS practices involving chicken manure, pig manure, and crop straw increased crop yields by 4.79, 7.68, and 3.28%, respectively, with significant differences, thus demonstrating the superior effects needed for replacing synthetic N fertilizer. Moreover, substitution ratios (SR) between 0% and 60% could be suggested when using the NSS practice, with the high SR recommended when the original soil fertility was adequate for crops. Considering the long-term effects of applied organic materials, improving the grain yield with the NSS practice should be expected in the long-term. By effectively applying the NSS, this study attempted to scientifically decide on the type of organic materials and the appropriate SR based on the conditions of the soil and the crop. The results provide research information for the development of clean agricultural production and food security in China.

scholarly journals Monitoring and evaluation of need for nitrogen fertilizer topdressing for maize leaf chlorophyll readings and the relationship with grain yield

2011 ◽  
Vol 54 (4) ◽  
pp. 665-674 ◽  
Author(s):  
Maria Anita Gonçalves da Silva ◽  
Antonio Saraiva Muniz ◽  
Anny Rosi Mannigel ◽  
Simone Maria Altoé Porto ◽  
Marlene Estevão Marchetti ◽  
...  
Keyword(s):  
Grain Yield ◽  
Nitrogen Fertilizer ◽  
Monitoring And Evaluation ◽  
Maize Leaf ◽  
Leaf Chlorophyll ◽  
The Relationship

scholarly journals Effect of Nitrogen Fertilizer and Its Application Efficiency on Two Local Sorghum Cultivars Sorghum bicolor L. Moench

2017 ◽  
Vol 9 (4) ◽  
pp. 236
Author(s):  
Abdulla A. Mohamed Muflahi ◽  
Ahmed Saleh Basuaid
Keyword(s):  
Grain Yield ◽  
Sorghum Bicolor ◽  
Nitrogen Fertilizer ◽  
Agricultural Research ◽  
Nitrogen Efficiency ◽  
Nitrogen Fertilizers ◽  
Research Station ◽  
Nitrogen Application ◽  
Four Levels ◽  
Sorghum Bicolor L

A field experiment was carried out at El-Kod Agricultural Research Station, Abyan Delta, Abyan Governorate during the seasons 2014 and 2015 in soil sandy silt to assess four levels of nitrogen fertilizers (0, 55, 110 and 165 kg N/ha) utilizing urea fertilizer (46% N) on some crop characteristics and efficiency of nitrogen application on two local cultivars of sorghum (Sorghum bicolor L. Moench). Split plot design was applied in four replicates. Fertilizer levels were distributed in main plots whereas, the cultivars in subplots. The results revealed significant differences between cultivars Benny and Saif in all characteristics during the two seasons. Cultivar Benny was significantly superior to cultivar Saif in all crop characteristics, except the length of spike which was significantly superior in Saif cultivar compared to cultivar Benny in both seasons. The increase in nitrogen level led to significant increase in all parameters of crop growth under study in both seasons, where the highest dose of nitrogen (165 kg N/ha) gave highest grain yield (3013 and 3201 kg/ha) in both seasons respectively, while the efficiency of nitrogen utilization declined with increased level of nitrogen application and highest value in nitrogen efficiency (12.78 kg grain/kg N). The interaction between cultivars and nitrogen fertilizer showed significant differences in terms of all studied parameters during both seasons. The cultivar Benny responded to high level of nitrogen (165 kg N/ha) and gave high grain yield (3640 and 3305 kg/ha) in both seasons respectively. The results yielded significant effect for efficiency of nitrogen application on grain yield between the cultivars, the levels of fertilizers and their interaction in the first season whereas, no significant differences were detected in the second season.

The effect of irrigation strategies and nitrogen fertilizer rates on maize growth and grain yield

2020 ◽  
Vol 38 (4) ◽  
pp. 461-478 ◽  
Author(s):  
María I. Zamora-Re ◽  
M. D. Dukes ◽  
D. Hensley ◽  
D. Rowland ◽  
W. Graham
Keyword(s):  
Grain Yield ◽  
Nitrogen Fertilizer ◽  
Maize Growth ◽  
Fertilizer Rates

scholarly journals Nitrogen Effects on Yield, Quality and Physiological Characteristics of Giant Rice

Agronomy ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1816
Author(s):  
Jisheng Zhang ◽  
Tianyi Tong ◽  
Pouwedeou Mouloumdema Potcho ◽  
Suihua Huang ◽  
Lin Ma ◽  
...  
Keyword(s):  
Grain Yield ◽  
Nitrogen Fertilizer ◽  
Nitrogen Fertilizers ◽  
Utilization Rate ◽  
Rice Varieties ◽  
Area Index ◽  
Biological Yield ◽  
Yield Quality ◽  
Set Up ◽  
High Level

In China, the quantity of nitrogen fertilizer applied is large, but as a consequence of a high level of loss, its utilization rate is low. Compared to common rice, the new giant rice has interesting characteristics, namely high biological yield and good efficient use of fertilizer. However, it becomes urgent to further consider the appropriate rate of nitrogen fertilizer to be applied. The giant rice varieties Feng5 and Feng6 were set up in a pot experiment and a field experiment under five doses of nitrogen fertilizers, namely, 0 kg·ha−1 (CK), 75 kg·ha−1 (T1), 150 kg·ha−1 (T2), 225 kg·ha−1 (T3) and 300 kg·ha−1 (T4). Parameters such as leaf area index (LAI), lodging index (LI), nitrogen utilization rate, photosynthesis rate and grain yield were measured. The results showed that with the increase of nitrogen dose in a certain range, LAI, plant height, the number of tillers, net photosynthetic rate (NPn), the transpiration rate (Tr), and the grain yield increased while the lodging index (LI), the nitrogen agronomic utilization rate (AE) and nitrogen partial productivity (PFPN) decreased. Additionally, with the increase of nitrogen application, the grain yield index (HI) and nitrogen contribution rate (FCRN) of rice presented a parabolic trend.

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