Effects of Mixed Controlled Release and Normal Urea on Maize (Zea Mays L) Growth, Grain Yield and Nitrogen Balance and Use Efficiency in Northeast China

Li, C.L.; Cao, Yucheng; Wang, Y.; Li, X.Y.; Li, Y.X.; Zhu, Lin; Zhao, Xiuhua; Gao, Qi-xin

doi:10.15666/aeer/1804_53675382

Cited by 7 publications

(7 citation statements)

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“…In that study, the authors used a CRU with a different pattern of N release (80% of N was released within 120 days after application) [19] compared to our study. Other effects of blends of CRU and U and just CRU (with polymer without S 0 ) on ammonia volatilization, maize yield, and soil N mineral in Chinese conditions can be found in [1,20], and in Brazilian conditions in [43].…”

Section: Discussionmentioning

confidence: 91%

“…In that situation, the N-fertilizer dynamic in the soil-plant system probably changes applying different ratios of CRU and U. The optimal ratio can vary based on the soil, climate conditions, and economic benefits, and is normally determined by the ammonia volatilization, N uptake, crop yield, and NUE [19,20]. 70%CRU + 30%U was recommended in North China [21] and in a Typic Haplustox soil in Brazil [16,22].…”

Section: Introductionmentioning

confidence: 99%

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15N-Fertilizer Recovery in Maize as an Additional Strategy for Understanding Nitrogen Fertilization Management with Blends of Controlled-Release and Conventional Urea

Garcia

Sermarini²,

Filho

et al. 2020

Agronomy

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A single application of polymer-sulfur coated urea (PSCU) and conventional urea (U) is expected to ensure nitrogen (N) throughout the maize (Zea mays L.) growth cycle being U the likely main N-fertilizer supplier at the beginning and PSCU during the maize growth cycle. This research aimed to evaluate N fertilization management (split, incorporated, and broadcast application) and fertilizer blends (30%PSCU + 70%U and 70%PSCU + 30%U) on volatilization of ammonia (AV) and soil N mineral content (NM); plant N uptake (NU) and 15N-fertilizer recovery (NR); and yield (GY). Field experiments were conducted for two growing seasons (2017–2018 and 2019–2020) in Rhodic Eutrustox soil. U was treated with NBPT (N-(n-butyl) thiophosphoric triamide). N rate was 180 kg ha−1. AV reached 12% of the applied N (broadcast-applied 70%PSCU + 30%U, 2017–2018). The 30%PSCU + 70%U application resulted in higher NM at 40–60 cm depth in vegetative and reproductive stages in both seasons. The 70%PSCU + 30%U application resulted in the highest GY in 2017–2018, and the N treatments did not affect GY in 2019–2020. NR was 3% on average at vegetative leaf stage 4 (V4), and PSCU, the main N-fertilizer supplier applying 70%PSCU + 30%U. After V4, the main N-fertilizer supplier is PSCU for 70%PSCU + 30%U and U for 30%PSCU + 70%U application. These blends (incorporated, broadcast, and split application) can ensure N during the maize growth cycle, with NR of 72.5% at maturity (R6) being 47.9% in the grain.

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Section: Discussionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

15N-Fertilizer Recovery in Maize as an Additional Strategy for Understanding Nitrogen Fertilization Management with Blends of Controlled-Release and Conventional Urea

Garcia

Sermarini²,

Filho

et al. 2020

Agronomy

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show abstract

“…In that study, the authors used a CRU with a different pattern of N release (80% of N was released within 120 days after application)(LI et al, 2020a) compared to our study. Other effects of blends of CRU and U and just CRU (with polymer without S 0 ) on ammonia volatilization, maize yield, and soil N mineral in Chinese conditions can be found in(LI et al, 2020b;KE et al, 2017), and in Brazilian conditions in(MIYAZAWA et al, 2020).…”

mentioning

confidence: 92%

“…70% CRU + 30% U was recommended in North China (GUO et al, 2017) andin a Typic Haplustox soil in Brazil (GARCIA et al, 2018;2019b). 30% CRU + 70% U was recommended in Northeast China (LI et al, 2020b). , 1986).…”

Section: General Introductionmentioning

confidence: 99%

“…The most common proportion of CRU and U in annual crops in North China is 70% CRU + 30% U (GUO et al, 2017), and this proportion was also recommended for soils from Brazil (GARCIA et al, 2018;2019a;VILLALBA, 2018). 30% CRU + 70% U was also recommended in Northeast China (LI et al, 2020a;LI et al, 2020b) and it represents a potential way to avoid low N levels due to N immobilization, especially at the beginning of the common bean growth cycle, in the current crop system in Brazil, in which the straw from the previous crop is left on the soil surface.…”

Section: Introductionmentioning

confidence: 99%

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Nitrogen (15N) use efficiency for fertilization managements of maize and common bean using mixtures of polymer-sulfur coated urea and conventional urea

Garcia¹

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Mixture of controlled-release and normal urea to improve maize root development, post-silking plant growth, and grain filling

Zheng,

Li,

Tian

et al. 2023

European Journal of Agronomy

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Effects of Mixed Controlled Release and Normal Urea on Maize (Zea Mays L) Growth, Grain Yield and Nitrogen Balance and Use Efficiency in Northeast China

Cited by 7 publications

References 0 publications

15N-Fertilizer Recovery in Maize as an Additional Strategy for Understanding Nitrogen Fertilization Management with Blends of Controlled-Release and Conventional Urea

15N-Fertilizer Recovery in Maize as an Additional Strategy for Understanding Nitrogen Fertilization Management with Blends of Controlled-Release and Conventional Urea

Nitrogen (15N) use efficiency for fertilization managements of maize and common bean using mixtures of polymer-sulfur coated urea and conventional urea

Mixture of controlled-release and normal urea to improve maize root development, post-silking plant growth, and grain filling

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