Irrigated grain sorghum response to 55 years of nitrogen, phosphorus, and potassium fertilization

Schlegel, Alan J.; Havlin, J. L.

doi:10.1002/agj2.20453

Cited by 4 publications

(5 citation statements)

References 39 publications

(50 reference statements)

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“…These results indicated that PN with 120 kg N ha −1 had the greatest effect on sorghum grain yield. This was consistent with the findings of Schlegel and Havlin (2021), who reported that the N rate for the maximum grain sorghum yield would have been 110 kg N ha −1 based on 55 years of continuous field observation [31].…”

Section: Discussionsupporting

confidence: 92%

“…A high N input could significantly increase the soil inorganic N content, especially in the topsoil layer [35]. As mentioned earlier, the N rate for the maximum grain sorghum yield would have been no more than 110 kg N ha −1 for maximum grain sorghum yield [31], and the extensive use of N fertilizer at 240 kg ha −1 markedly increased soil inorganic N (including nitrate and ammonia nitrogen) accumulation within the 0−60 cm soil layer in the present study. According to Adam et al (2015), sorghum was capable of extracting relatively high quantities of soil N under N-limiting conditions [36]; in this case, an N application rate under 120 kg ha −1 , especially for PN, would satisfy the grain sorghum N demand at the current yield level and reduce soil nutrient losses.…”

Section: Discussionmentioning

confidence: 92%

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Effect of Urea Coated with Polyaspartic Acid on the Yield and Nitrogen Use Efficiency of Sorghum (Sorghum bicolor, (L.) Moench.)

Peng

Fang

et al. 2022

Plants

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Innovative approaches to enhance N fertilization to improve season-long N availability are essential to optimal sorghum (Sorghum bicolor, (L.) Moench.) productivity and N use efficiency. A two-year field experiment was conducted in the 2020 and 2021 summer seasons on the North China Plain to determine the effects of a novel urea coated with polyaspartic acid (PAA) (PN) and a control treatment (CN) on grain sorghum yield and N utilization characteristics at four N application rates (0, 60, 120, and 240 kg ha−1). The results showed that sorghum yield, agronomic traits (including leaf area duration (LAD), crop growth rate (CGR), and dry matter accumulation (DMA)), the accumulation of nitrate N and ammonium N in the 0–60 cm soil layer, stover and grain N content, and total N uptake (NUT) in 2020 and 2021 significantly increased as N application rates increased from 0 to 240 kg ha−1, whereas nitrogen agronomic efficiency (NAE), N uptake efficiency (NUpE), and N utilization efficiency (NUtE) varied inversely with increasing N application rates. Compared to CN, PN demonstrated a significant enhancement in grain sorghum yield, LAD, and CGR, from 3.3% to 7.1%, from 4.8% to 6.1%, and from 5.8% to 6.8%, respectively, at 60 and 120 kg N ha−1. PN improved the N availability (mainly nitrate-N) in the sorghum soft dough and the stover and grain N content at harvest and NUT, NUpE, and NAE accordingly compared with CN at the 60 and 120 kg ha−1 N application rates. In short, our two-year field trials demonstrated that PN with 120 kg N ha−1 is recommended in grain sorghum to optimize sorghum productivity and nitrogen use efficiency at the current yield level in the North China Plain.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 92%

Effect of Urea Coated with Polyaspartic Acid on the Yield and Nitrogen Use Efficiency of Sorghum (Sorghum bicolor, (L.) Moench.)

Peng

Fang

et al. 2022

Plants

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“…Metho et al reported that the wheat yield upon co-application of N, P, and K was higher than the sum of the yields from individually adding N, P, and K [17]. However, in other studies, the grain yield did not clearly increase after the application of P or K [18,19,39]. Dodd and Mallarino (2005) found that fertilization did not improve corn yield in high P soil until Non−Fertilizer production for 8-9 years [40].…”

Section: Effects Of N P and K Interactions On Root Growthmentioning

confidence: 98%

“…A study on rice-wheat rotation showed that integrating N, P, and K increased the yield and N uptake and decreased N loss in both rice and wheat compared with that obtained upon N or NP application; however, post-application NUE was not significantly different between NPK or NP [18]. Schlegel and Havlin [19] demonstrated that the significantly improved grain yield, N uptake, agronomic N use efficiency (NAE), and N recovery by sorghum in Ulysses silt loam upon the coapplication of N, P, and K was mainly due to N and P, rather than adding K. The continuous application of N, P, and K over 13 years in sandy loam increased the yield and apparent N recovery of spring barley; however, the increase was not significant [20]. Studies have suggested that the combination of fertilizers does not affect N utilization [21,22].…”

Section: Introductionmentioning

confidence: 97%

Improvement of Root Characteristics Due to Nitrogen, Phosphorus, and Potassium Interactions Increases Rice (Oryza sativa L.) Yield and Nitrogen Use Efficiency

Zhang

Gao

et al. 2021

Agronomy

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Although nitrogen (N), phosphorus (P), and potassium (K) co-application improves crop growth, yield, and N use efficiency (NUE) of rice, few studies have investigated the mechanisms underlying these interactions. To investigate root morphological and physiological characteristics and determine yield and nitrogen use parameters, rhizo-box experiments were performed on rice using six treatments (no fertilizer, PK, N, NK, NP, and NPK) and plants were harvested at maturity. The aboveground biomass at the elongating stage and grain yield at maturity for NPK treatment were higher than the sum of PK and N treatments. N, P, and K interactions enhanced grain yield due to an increase in agronomic N use efficiency (NAE). The co-application of N, P, and K improved N uptake and N recovery efficiency, exceeding the decreases in physiological and internal NUE and thereby improving NAE. Increases in root length and biomass, N uptake per unit root length/root biomass, root oxidation activity, total roots absorption area, and roots active absorption area at the elongating stage improved N uptake via N, P, and K interactions. The higher total N uptake from N, P, and K interactions was due to improved root characteristics, which enhanced the rice yield and NUE.

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“…Plant nutrition directly affects the effective synthesis, distribution, and accumulation of components of plants, thereby resulting in variations in quality under different cultivation conditions [17,18]. Rational fertilization increases the yield and quality as well as increasing the N and K use efficiency [19][20][21][22]. However, applying excessively high or low amounts of fertilizer will inhibit the absorption of nutrients, which is not conducive to growth.…”

Section: Introductionmentioning

confidence: 99%

Effects of Applying Nitrogen and Potassium on Lilium lancifolium Growth and Accumulation of Secondary Metabolites in Bulbs

Wang

Zhang

et al. 2023

Horticulturae

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Lilium lancifolium is a plant resource used as both medicine and food because it is enriched with polysaccharides, polyphenol compounds, and saponins. Increasing the quality of Lilium species is based largely on improvement using methods such as selective breeding and proper fertilization. In this study, we investigated the different responses of L. lancifolium bulbs to treatment with nitrogen (N) and potassium (K) in Hoagland solution. A pot experiment was conducted with four N rates and five K rates under a completely random design. The agronomic traits, N and K contents, and concentrations of active compounds were determined in bulbs, including total phenols, flavonoids, polysaccharides, and saponins. L. lancifolium treated with N and K exhibited increases in the plant height, leaf number, and chlorophyll content compared with the control (N0 + K0). The bulb circumference increased by 17.41% under N2 (609.80 mg L−1) + K2 (523.34 mg L−1) compared with N0 + K0. Individual or combined application of N and K increased the total phenol, flavonoid, and saponin contents, especially under N2 + K3, with the highest increases of 1.87–2.93 times compared with N0 + K0. However, the individual application of N decreased the polysaccharide contents by 2.78–42.04%. Hoagland solution containing 443.24–572.87 mg L−1 N and 573.61–759.16 mg L−1 K is recommended to improve the active contents of bulb components based on regression analysis. Our results demonstrate that the combined application of N and K is important for obtaining high-quality L. lancifolium bulbs.

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Irrigated grain sorghum response to 55 years of nitrogen, phosphorus, and potassium fertilization

Cited by 4 publications

References 39 publications

Effect of Urea Coated with Polyaspartic Acid on the Yield and Nitrogen Use Efficiency of Sorghum (Sorghum bicolor, (L.) Moench.)

Effect of Urea Coated with Polyaspartic Acid on the Yield and Nitrogen Use Efficiency of Sorghum (Sorghum bicolor, (L.) Moench.)

Improvement of Root Characteristics Due to Nitrogen, Phosphorus, and Potassium Interactions Increases Rice (Oryza sativa L.) Yield and Nitrogen Use Efficiency

Effects of Applying Nitrogen and Potassium on Lilium lancifolium Growth and Accumulation of Secondary Metabolites in Bulbs

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