Effects of Nitrogen Exponential Fertilization on Growth and Nutrient Concentration of Hydrangea macrophylla Seedlings

Hu, Yonghong; Liaquat, Fiza; Zhang, Xianquan; Kang, Yong; Qin, Jun; Liu, Qunlu

doi:10.32604/phyton.2022.017981

Cited by 3 publications

(2 citation statements)

References 31 publications

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“…Ser. [8], and Pinus banksiana Lamb. [9] are more efficient in transporting nutrients under the exponential fertilization method.…”

Section: Introductionmentioning

confidence: 99%

Effects of Nitrogen Forms on Root Morphology and Nitrogen Accumulation in Pinus tabuliformis carr. Seedlings under Exponential Fertilization

Liu,

Li,

et al. 2024

Forests

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In this study, the effects of different fertilization methods and nitrogen forms on the root morphology and nitrogen accumulation of Pinus tabuliformis carr. were investigated, and the interaction mechanism between roots and nitrogen fertilizer was analyzed to provide a theoretical basis for the rational fertilization of Pinus tabuliformis. The total amount of nitrogen fertilizer applied to seedlings was 100 mg·plant−1; four nitrogen form treatments of ammonium nitrogen, nitrate nitrogen, ammonium nitrate 1:1, and amide nitrogen were set up; and two fertilization methods of conventional and exponential fertilization were applied, with a total of eight experimental treatments. By measuring root parameters, plant biomass, and nitrogen accumulation, the correlation between fertilization method and nitrogen form on the root index of seedlings was analyzed, and the effects of fertilization methods and nitrogen forms on the root growth of seedlings were discussed. Compared with conventional fertilization, exponential fertilization significantly promoted root growth and development, and amide nitrogen was the best nitrogen form. The total length, total surface area, total volume, average diameter, root tips, root/shoot ratio, root tissue density of seedlings’ roots, biomass, and nitrogen accumulation of seedlings in exponential fertilization with amide nitrogen EF3 treatment all increased substantially compared with the others, The effects of fertilization mode, nitrogen form, and their interaction on the partial growth of Pinus tabuliformis seedlings were significant (p < 0.05). The correlation analysis of each index showed that the correlation between nitrogen accumulation and biomass was strongest. Therefore, considering the morphological and structural characteristics of the root system and the nitrogen accumulation in the root system, amide nitrogen in the experimental fertilization can better promote the growth and development of the root system of seedlings.

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“…Ser. [8], and Pinus banksiana Lamb. [9] are more efficient in transporting nutrients under the exponential fertilization method.…”

Section: Introductionmentioning

confidence: 99%

Effects of Nitrogen Forms on Root Morphology and Nitrogen Accumulation in Pinus tabuliformis carr. Seedlings under Exponential Fertilization

Liu,

Li,

et al. 2024

Forests

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“…The study showed that the exponential fertilization not only met the nutritional requirements of Quercus nuttallii seedlings, but also promoted the growth of seedlings and their root systems, and indirectly accelerated the accumulation of N/P/K, thus improving the quality of the plantation. Wang et al [14] investigated the nitrogen requirements of Hanatemari grown with exponential fertilization to enhance robust seedlings, nutrient dynamics, biomass, and growth. The study showed that exponential fertilization with reasonable regulation of fertilizer applied improves the quality of seedlings.…”

Section: Introductionmentioning

confidence: 99%

Effects of Fertilization Mode on the Growth of Lactuca sativa L. and Soil Nutrients in Facilitated Cultivation

Li,

Wei,

Zhao

et al. 2023

Agriculture

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This paper aims to find a fertilization method that better matches the growth characteristics of vegetables and reduces the soil and environmental problems caused by unreasonable fertilization methods, in view of the strong buffering of the clayey black soil in the north and the mismatch between the amount of chemical fertilizer applied and the growth characteristics of vegetables during cultivation. In this experiment, Lactuca sativa L. (Lactuca sativa) was studied in a randomized complete block design in greenhouse and five different fertilizer application methods were arranged: exponential fertilization (EF), linear fertilization (LF), average fertilization (AF), one-time fertilization (OF), and no fertilization as a control group (CG). The effects of different fertilization methods on soil nutrients, agronomic traits of Lactuca sativa growth, and related quality were investigated, and the pattern of effects of different fertilization methods on growth and soil nutrients was obtained. The results of the experiment showed that the exponential fertilization method gradually took advantage as the growth time extended. The plant height (PLH), leaf length (LL), leaf width (LW), yield, soluble protein (SP), soluble sugar (SS), vitamin C (VC), and elemental nitrogen (EN) and potassium (EK) of Lactuca sativa were significantly improved under the exponential fertilization method compared with other fertilization methods, by 29.9 cm, 51.5 cm, 5.96 cm, 22, 2.32 kg/m2, 0.23%, 0.44%, 3.93%, 94.66 mg/kg, 1.58 g/kg, and 1.94 g/kg, respectively. The alkali-hydrolyzed nitrogen (SAN), available phosphorus (SAP), and available potassium (SAK) in the soil after fertilization were 139.69 mg/kg, 50.23 mg/kg, and 180.30 mg/kg, respectively. The above results showed that the exponential fertilization method not only improved the quality of Lactuca sativa and thus the quality of the crop growth traits, but also changed the soil nutrients favorably after fertilization, which is of some importance for the protection of black soils.

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N-Exponential Fertilization Could Affect the Growth and Nitrogen Accumulation of Metasequoia glyptostroboides Seedling in a Greenhouse Environment

Wu¹,

Tong²,

Guo³

et al. 2022

Phyton

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Effects of Nitrogen Exponential Fertilization on Growth and Nutrient Concentration of Hydrangea macrophylla Seedlings

Cited by 3 publications

References 31 publications

Effects of Nitrogen Forms on Root Morphology and Nitrogen Accumulation in Pinus tabuliformis carr. Seedlings under Exponential Fertilization

Effects of Nitrogen Forms on Root Morphology and Nitrogen Accumulation in Pinus tabuliformis carr. Seedlings under Exponential Fertilization

Effects of Fertilization Mode on the Growth of Lactuca sativa L. and Soil Nutrients in Facilitated Cultivation

N-Exponential Fertilization Could Affect the Growth and Nitrogen Accumulation of Metasequoia glyptostroboides Seedling in a Greenhouse Environment

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