Nitrogen fertilizer sources and tillage effects on cotton growth, yield, and fiber quality in a coastal plain soil

Watts, Dexter B.; Runion, G. Brett; Balkcom, Kipling S.

doi:10.1016/j.fcr.2016.11.008

Cited by 26 publications

(12 citation statements)

References 36 publications

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“…This two-year field study has enabled us to evaluate the effect of EENFs on yield and quality of cotton grown under drip-fertigated system. Similar to other studies where the agronomic effectiveness of EENF products were minimal or absence 15,16 , polymer coated urea as ESN and addition of nitrification and urease inhibitors did not increase yield and fiber quality, and NRE of cotton in the current study. The absence of fertilizer source effect is highly associated with the unique conditions of drip-fertigation in the arid ecosystem.…”

Section: Discussionsupporting

confidence: 85%

“…ESN was banded in the plant row before seeding. In treatments with urea, 20% of total N was banded in the plant row before seeding, and the remaining 80% was applied by six fertigation events at 9,11,14,15,16, and 17 weeks after planting. For treatment U + DI, NBPT and DCD were applied at rate of 1% urea N, with NBPT using the same strategy as urea while DCD being all banded in the plant row before seeding.…”

Section: Experimental Design and Agronomic Managementmentioning

confidence: 99%

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Agronomic evaluation of polymer-coated urea and urease and nitrification inhibitors for cotton production under drip-fertigation in a dry climate

Tenuta

et al. 2020

Sci Rep

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Interest in the use of enhanced-efficiency nitrogen (N) fertilizers (EENFs) has increased in recent years due to their potential to increase crop yield and reduce environmental N loss. Drip-fertigation is widely used for crop production in arid regions to improve water and nutrient use efficiency whereas the effectiveness of EENFs with drip irrigation remains unclear. A field experiment was conducted in 2015 and 2016 to examine the effects of EENFs on yield, N use and quality of cotton (Gossypium hirsutum) grown under drip-fertigation in arid NW China. Treatments included an unfertilized control and application of 240 kg N ha −1 by polymer-coated urea (ESN), urea alone, or urea plus urease (NBPT) and nitrification (DCD) inhibitors. ESN was all banded in the plant row at planting, whereas urea was applied with 20% N banded at planting and 80% N by six fertigation events over the growing season. Results showed there was generally no treatment effect on seed and lint yield, N concentration or allocations, N recovery efficiency and fiber quality index of cotton. A lack of treatment effect could be due to N supplied with drip-fertigation better synthesized with crop N needs and the relatively high soil native no 3 − availability, which hindered the effect of polymer-coated urea and double inhibitors. These results highlight the challenge of the employment of EENFs products for drip-fertigation system in arid area. Further research is required to define the field conditions under which the agronomic efficiency of EENFs products may be achieved in accordance with weather conditions.

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Section: Discussionsupporting

confidence: 85%

Section: Experimental Design and Agronomic Managementmentioning

confidence: 99%

Agronomic evaluation of polymer-coated urea and urease and nitrification inhibitors for cotton production under drip-fertigation in a dry climate

Tenuta

et al. 2020

Sci Rep

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“…However, the results of Steiner et al 57 showed that compared with the treatment without biochar, the dry matter weight of crops treated with biochar decreased by 31.2% and the yield by 56.3% after applying N fertilizer. From the above results, the key to whether biochar can promote crop growth and increase yield is the combination and proportion of fertilizer and biochar and, such as C/N ratio 58,59 . Therefore, when applying biochar, soil fertility should be fully considered, and an appropriate C/N ratio should be used 60 .…”

Section: Discussionmentioning

confidence: 99%

Benefits of organic manure combined with biochar amendments to cotton root growth and yield under continuous cropping systems in Xinjiang, China

Zhang

Dong

Wang

et al. 2020

Sci Rep

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Organic manure and biochar amendments have been used in agriculture to improve soil fertility and enhance crop productivity. Plant roots play an important role in the functionality of individual plants, and although the addition of organic manure and biochar reportedly affect roots, it remains unclear how root morphology and physiology respond. We conducted a field experiment to test the hypothesis that organic manure combined with biochar amendment could also enhance the productivity of continuous cropping systems in Xinjiang cotton plantations. Different levels of organic manure and biochar were applied. Organic manure and biochar significantly affected root morphology and physiology by improving soil nutrients. In the absence of biochar, organic manure amendment increased Root TTC reducing capacity, glutamine synthetase and nitrate reductase activity. Furthermore, morphological and physiological parameters peaked with 6% organic manure combined with 1% biochar. A significant increase in root physiology was recognized with an increase in soil nutrient content at the bud stage and a negative relationship between root physiology and soil total K content at the harvesting stage. Thus, our results indicate that organic manure combined with biochar positively influenced cotton roots, and therefore should be used to improve root health in continuous cropping systems.Xinjiang has abundant land resources, and its climate has low precipitation, high levels of sunshine and large temperature difference between day and night. When combined with the large-scale application of drip irrigation and mechanized cotton planting, this ensures the higher economic benefit of cotton in Xinjiang compared with other inland cotton producing areas. Compared with other crops such as safflower, maize, and wheat, cotton has outstanding advantages and stable benefits including high profit, advantage of planting technology and preferential policy 1 . By 2016, the cotton planting area and cotton yield in Xinjiang accounted for 53.97% and 67.3% of the whole country, respectively. Owing to the slow process of agricultural industrialization, large area of the land involved, short period of contracts, and driven by economic interests, continuous cropping is widespread in Xinjiang 2 . 73.1% of cotton fields in Xinjiang have been continuously cropped for more than five years 3 .In continuous cropping systems, demand for nutrients causes imbalances in soil nutrients in cotton fields, affects the growth, nutrient uptake, and utilization efficiency of roots, and ultimately reduces yield. Previous studies have reported a significant correlation between cotton yield and soil N, C, and P quality ratios during continuous cropping 4 . Soil organic matter, available P, and available K, and trace elements, including available Mn, available Fe, and available Cu exhibit different trends and degrees of change, which leads to imbalances in soil nutrients in cotton fields 5 . In addition, the yield of cotton fields continuously cropped for the same number of years...

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“…14 As características do NA mostram-se vantajosas diante das demais fontes de nitrogênio que poderiam substituí-lo nas formulações de fertilizantes, tais como: a amônia anidra (NH 3 ) -volátil, básica, de difícil manuseio e alto custo; a ureia (CH 4 N 2 O)volátil e propensa à perda de N; o sulfato de amônio ((NH 4 ) 2 SO 4 ) -baixa disponibilidade de N para a planta (21%) e elevada acidez; e o nitrogênio líquido (composto pela mistura de NA e ureia)difícil manuseio e requer condições custosas para armazenamento. 14 Entretanto, de acordo com Watts, Runion e Balkcom (2017), 15 o domínio do NA como fertilizante nitrogenado para agricultura tem diminuído ao longo dos anos devido à preocupação em torno da utilização deste agente químico em ataques terroristas. A combinação explosiva de NA e óleo combustível, por exemplo, pode ser utilizada para a fabricação de Improvised Explosive Devices (IED), em tradução livre, bombas caseiras.…”

Section: Aplicações E Considerações Econômicas Do Nitrato De Amôniounclassified

Ammonium Nitrate: Good or Bad Guy?

Simplicio¹,

Santos²,

Campos³

et al. 2021

Rev. Virtual Quim.

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Ammonium nitrate (NA) is an inorganic salt that constitutes products used in common practices, such as application in fertilizers, odor control, production of explosive agents and production of propellants for rockets. Its physico-chemical properties demonstrate that it is a highly stable salt, which raises the question about its involvement in numerous explosive accidents recorded worldwide, the most recent being in August 2020 in the city Beirut-Lebanon. Thus, this review article gathers important information and necessary knowledge about this chemical agent, in order to avoid or minimize accidents that may involve NA. Therefore, information was addressed from the economic importance and main applications of NA to the risks and safety measures recommended for the operations of its transportation, storage and use. O nitrato de amônio (NA) é um sal inorgânico constituinte de vários produtos utilizados em práticas comuns, como a aplicação em fertilizantes, controle de odores, produção de agentes explosivos e produção de propelentes para foguetes. Suas propriedades físico-químicas demonstram se tratar de um sal de elevada estabilidade, o que desperta o questionamento sobre o seu envolvimento em inúmeros acidentes explosivos registrados em todo o mundo, sendo o mais recente o ocorrido em agosto de 2020 na cidade Beirute-Líbano. Dessa forma, o presente artigo de revisão reúne informações importantes e de conhecimento necessário acerca deste agente químico, a fim de evitar ou minimizar os acidentes que possam envolver o NA. Assim, foram abordadas informações desde a importância econômica e principais aplicações do NA até os riscos e as medidas de segurança recomendadas às operações de seu transporte, armazenamento e uso.

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Nitrogen fertilizer sources and tillage effects on cotton growth, yield, and fiber quality in a coastal plain soil

Cited by 26 publications

References 36 publications

Agronomic evaluation of polymer-coated urea and urease and nitrification inhibitors for cotton production under drip-fertigation in a dry climate

Agronomic evaluation of polymer-coated urea and urease and nitrification inhibitors for cotton production under drip-fertigation in a dry climate

Benefits of organic manure combined with biochar amendments to cotton root growth and yield under continuous cropping systems in Xinjiang, China

Ammonium Nitrate: Good or Bad Guy?

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