Coupling effects of urea types and subsoiling on nitrogen–water use and yield of different varieties of maize in northern China

Hu, Hongxing; Ning, Tangyuan; Li, Zengjia; Han, Hairong; Zhang, Zongzheng; Qin, Shujun; Zheng, Yu

doi:10.1016/j.fcr.2012.12.001

Cited by 93 publications

(58 citation statements)

References 29 publications

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“…However, in this current study, there were no significant correlations between soil CO 2 emissions and soil temperature and moisture. This suggests that other factors are involved in determining the quantitative variation in soil CO 2 emissions3435.…”

Section: Discussionmentioning

confidence: 99%

Plastic-film mulching and urea types affect soil CO2 emissions and grain yield in spring maize on the Loess Plateau, China

Liu

Chen

et al. 2016

Sci Rep

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A 2-year field experiment was conducted on maize (Zea mays L.) to explore effective ways to decrease soil CO2 emissions and increase grain yield. Treatments established were: (1) no mulching with urea, (2) no mulching with controlled release fertiliser (CRF), (3) transparent plastic-film mulching (PMt) with urea, (4) PMt with CRF, (5) black plastic-film mulching (PMb) with urea, and (6) PMb with CRF. During the early growth stages, soil CO2 emissions were noted as PMt > PMb > no mulching, and this order was reversed in the late growth stages. This trend was the result of topsoil temperature dynamics. There were no significant correlations noted between soil CO2 emissions and soil temperature and moisture. Cumulative soil CO2 emissions were higher for the PMt than for the PMb, and grain yield was higher for the PMb treatments than for the PMt or no mulching treatments. The CRF produced higher grain yield and inhibited soil CO2 emissions. Soil CO2 emissions per unit grain yield were lower for the BC treatment than for the other treatments. In conclusion, the use of black plastic-film mulching and controlled release fertiliser not only increased maize yield, but also reduced soil CO2 emissions.

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Section: Discussionmentioning

confidence: 99%

Plastic-film mulching and urea types affect soil CO2 emissions and grain yield in spring maize on the Loess Plateau, China

Liu

Chen

et al. 2016

Sci Rep

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“…Furthermore, increasing the frequency of top‐dressing applications is usually unacceptable due to practical and economic reasons. The application of controlled release fertilizer could release N gradually to coincide with the N demand of the crop (Grant et al., 2012; Ye et al., 2013) and has been proven to increase the grain yield and NUE of maize compared with conventional urea by several studies (Diez et al., 1994; Hu et al., 2013; Zhao, Dong, Zhang, & Liu, 2013; Zheng et al., 2017). Previous research on fertilization and planting densities focused on common fertilizer, however, there have been few attempts to evaluate the effects of slow‐released fertilizer on post‐silking N uptake and translocation, SLN, NUE, and grain yield in comparison with conventional fertilizer under different plant densities.…”

Section: Introductionmentioning

confidence: 99%

Effects of fertilizer management strategies on maize yield and nitrogen use efficiencies under different densities

Wang

et al. 2020

Agronomy Journal

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Rational plant density and fertilizer management are important practices to improve maize (Zea mays L.) yield and nutrient use efficiency. Previous research indicated that plant density and fertilization had positive interaction on maize yield and N utilization. The research studied on the interactive effects of slow‐released fertilizer (added amino acid polymer biological preparation) and density on maize yield and nitrogen use efficiencies (NUEs). A 2‐yr field experiment with varieties Suyu29 (SY29) or Suyu30 (SY30) was conducted using a split‐split plot design. Three densities (6.0, 7.5, and 9.0 × 104 plants per ha) and three fertilization modes (0F‐no fertilizer, SF‐one‐time application of slow‐released fertilizer, and CF‐twice application of conventional fertilizer) were assigned. Results indicated that grain yields and NUEs of SF under 7.5 × 104 plants per ha were the highest both in SY29 and SY30. Compared with CF under 7.5 × 104 plants per ha, SF could improve pre‐ and post‐silking N uptake and promote N translocation from stalk and leaf into grain, which increased its contribution efficiency to grain N content and obtained higher NUE. The average N partial productivity, N agronomic efficiency, N recovery efficiency, and N absorption efficiency of SF were 5.3, 9.9, 20.1, and 11.4% higher than CF under 7.5 plants × 104 plants per ha. Increasing plant density, the grain yield, total N accumulation, and NUEs initially increased and then decreased both in SF and CF. These results suggest that one‐time application of SF combined with appropriate density could increase maize yield and NUE under our experiment condition.

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“…The superiority of coated urea occurred because polymer-coated granules have resins that allow long time of solubilization, thus releasing the nutrient, gradually and by diffusion, through the micropores to the soil solution (Hu et al, 2012), with reduction of leaching losses, especially in sandy soils (Osman & El-Rahman., 2009), as the soil of the experimental area (Table 1). These results agree with those observed for other fruit crops of economic importance, such as peach (Kandil et al, 2010) and guava (Osman & ElRahman, 2009).…”

Section: Resultsmentioning

confidence: 99%

“…Thus, a nutritional balance must be promoted, especially regarding N, since it has great importance in plant nutrition and participates as a constituent in proteins, nucleic acids and chlorophyll molecule, besides directly acting on the processes of cell division and expansion (Marchner, 2005). On the other hand, N fertilization management is complex, because of the multiplicity of soil biochemical reactions, dependence on edaphoclimatic conditions and vulnerability to losses in the soil (Hu et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Nutritional status and fruit production of Carica papaya as a function of coated and conventional urea

Júnior

Santos

Silva

et al. 2016

Rev. bras. eng. agríc. ambient.

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A B S T R A C TAs a strategy to minimize N losses in the soil, mineral N sources, such as polymer-coated urea, have been studied as possibility to increase the synchronization of N release by the fertilizer and its absorption by plants. Thus, this study aimed to evaluate the contents of macronutrients and the production of Formosa papaya as a function of sources and doses of N fertilizer applied as top-dressing in the region of Bom Jesus-PI, Brazil. The treatments were arranged in a 2 x 4 factorial scheme corresponding to N sources (coated urea and conventional urea) and N doses (350, 440, 530 and 620 g plant -1 of N), with four replicates and four plants per plot. The contents of macronutrients in the leaf dry matter and fruit production were evaluated. The sources and doses of top-dressing N fertilization incremented the leaf contents of macronutrients and the production of Formosa papaya hybrid Caliman 01. Under the experimental conditions and based on the macronutrient contents considered as adequate for crop nutrition, associated with maximum fruit production (8.08 kg plant -1 ), the supply of 525 g of N plant -1 is recommended in the form of coated urea.Estado nutricional e produção do mamoeiro Formosa em função da aplicação de ureia protegida e convencional R E S U M O Como estratégia para minimizar as perdas de N no solo tem-se estudado fontes minerais de N-fertilizantes protegidas com polímeros a partir das quais é possível aumentar o sincronismo entre a liberação do nutriente pelo fertilizante e sua absorção pela planta. Neste sentido teve-se, como objetivo, avaliar os teores dos macronutrientes e a produção do mamoeiro Formosa em função de fontes e doses de N-fertilizante aplicadas em cobertura na região de Bom Jesus, PI. Os tratamentos foram dispostos em esquema fatorial 2 x 4 correspondentes a fontes de nitrogênio (ureia protegida e ureia convencional) e doses de nitrogênio (350, 440, 530 e 620 g planta -1 de N) com quatro repetições e quatro plantas por parcela. Avaliaram-se os teores de macronutrientes na massa seca foliar e a produção de frutos. As fontes e doses de adubação nitrogenada em cobertura incrementam as concentrações foliares de macronutrientes e a produção do mamoeiro Formosa híbrido Caliman 01. Nas condições em que o experimento foi desenvolvido e considerando os teores de macronutrientes admitidos como adequados para a nutrição da cultura associada à produção máxima de frutos (8,08 kg planta -1 ) recomenda-se o fornecimento de 525 g planta -1 de N na forma de ureia protegida.

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Coupling effects of urea types and subsoiling on nitrogen–water use and yield of different varieties of maize in northern China

Cited by 93 publications

References 29 publications

Plastic-film mulching and urea types affect soil CO2 emissions and grain yield in spring maize on the Loess Plateau, China

Plastic-film mulching and urea types affect soil CO2 emissions and grain yield in spring maize on the Loess Plateau, China

Effects of fertilizer management strategies on maize yield and nitrogen use efficiencies under different densities

Nutritional status and fruit production of Carica papaya as a function of coated and conventional urea

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