Response of photosynthesis, growth, and acorn mass of pedunculate oak to different levels of nitrogen in wet and dry growing seasons

Sever, Krunoslav; Bogdan, Saša; Škvorc, Željko

doi:10.1007/s11676-022-01505-1

Cited by 6 publications

(4 citation statements)

References 69 publications

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“…In our experiment, the stem diameter of plants decreased with increased planting density and increased with increased nitrogen rate during the three growth stages. As the growth period progressed, the trend of decreasing stem diameter caused by increased density gradually decreased, and the effect of nitrogen fertilizer on stem diameter was gradually greater than that of planting density; this is consistent with previous studies [28][29][30]. At high planting density levels, individual plants seek higher heights to obtain sufficient light, resulting in thinning of the culm and increased risk of lodging [31].…”

Section: Effects Of Planting Density and Nitrogen Application On Grow...supporting

confidence: 89%

Optimizing the Growth of Silage Maize by Adjusting Planting Density and Nitrogen Application Rate Based on Farmers’ Conventional Planting Habits

Qian,

Ma,

Ren

et al. 2023

Agronomy

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Silage maize is cultivated due to its high nutritional value as a forage. China’s recent agricultural policy promotes the popularization and cultivation of silage maize. The production of silage maize is affected by planting density and nitrogen application. Based on investigating the planting habits of local farmers, we adjusted the planting density and nitrogen application rate to optimize the growth of silage maize. This study was conducted to investigate the effects of planting density (65,000 plant ha−1 (D1), 80,000 plant ha−1 (D2), and 95,000 plant ha−1 (D3)) and nitrogen rate (150 kg ha−1 (N1), 230 kg ha−1 (N2), and 310 kg ha−1 (N3)) on growth, yield, and quality of silage maize using a two-factor random block design. Planting density and nitrogen fertilizer significantly affected plant height, stem diameter, leaf area index, crude protein, neutral detergent fiber, acid detergent fiber, and starch of silage maize. In summary, the combination of a planting density of 80,000 plants ha−1 and a nitrogen application rate of 310 kg ha−1 produced a higher crude protein and starch yield and better palatability and quality; this result can aid silage maize growth.

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Section: Effects Of Planting Density and Nitrogen Application On Grow...supporting

confidence: 89%

Optimizing the Growth of Silage Maize by Adjusting Planting Density and Nitrogen Application Rate Based on Farmers’ Conventional Planting Habits

Qian,

Ma,

Ren

et al. 2023

Agronomy

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“…Moreover, at this dissolved oxygen concentration, the pakchoi antioxidant system produced could not only timely remove the reactive oxygen species generated by the coupling of salt stress and micronano bubble cracking, but also the adequate oxygen supply environment could better promote pakchoi nitrogen absorption and utilization. Additionally, studies have shown that there is a significant correlation between crop photosynthetic capacity and nitrogen use efficiency [52][53][54]. Higher nitrogen use efficiency can significantly improve leaf chlorophyll fluorescence characteristics, increase leaf net photosynthetic rate, and ultimately promote crop yield.…”

Section: Oxygenation Effects On Pakchoi Growth Characteristicsmentioning

confidence: 99%

Effects of Oxygenated Brackish Water on Pakchoi (Brassica chinensis L.) Growth Characteristics Based on a Logistic Crop Growth Model

et al. 2023

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Oxygenated irrigation can improve soil physical and chemical properties and increase vegetable yields. It provides an effective method for safe and efficient utilization of brackish water, but its growth-promoting pathway is unclear. We investigated the effects of brackish water culture at five dissolved oxygen concentrations (9.5 (CK), 12.5, 15.5, 18.5, and 22.5 mg/L) on pakchoi (Brassica chinensis L.) growth characteristics by hydroponics experiment, and the logistic model to fit and analyze pakchoi growth characteristics. At a brackish water dissolved oxygen concentration of 18.5 mg/L, nitrogen mass fraction was significantly higher than in a control treatment by 43.4%, and pakchoi effective accumulated temperature increment during vigorous plant height and root length growth was significantly lower than other treatments. The logistic model effectively simulated pakchoi plant height and root length growth, and both theoretical maximum plant height and root length reached their maximum values at 18.5 mg/L dissolved oxygen concentration. Path analysis showed that the maximum net photosynthetic rate and nitrogen mass fraction were the main factors affecting aboveground pakchoi fresh weight. In conclusion, a dissolved oxygen concentration of 18.5 mg/L in brackish water is more appropriate for pakchoi to achieve high yield under brackish water hydroponics conditions. Our results provide guidance for the safe and efficient utilization of brackish water in green and efficient vegetable production.

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“…Effective production of quality FRM in CSOs and forest nurseries requires intensive management, i.e., implementation of the best agrotechnical practices, which includes fertilization. By applying fertilizers that most often contain essential biogenic elements in different proportions (including P), the concentrations of these elements in the soil increases, which ultimately results in an increased concentration of biogenic elements in plant organs [28][29][30]. This has a positive impact on the survival and later growth of the plants in natural habitats [31][32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

Leaf Phenological Responses of Juvenile Beech and Oak Provenances to Elevated Phosphorus

Bačurin¹,

Bogdan²,

Bogdan³

et al. 2023

Preprint

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The few studies dealing with leaf phenological responses to elevated nutrients in forest trees have given ambiguous results, i.e., while some reported delayed leaf-out and autumn leaf senescence, others reported advanced leaf phenology caused by increased nutrition. This study aimed to determine the effects of experimentally increased phosphorus (+P) on the leaf phenologies of two juvenile provenances of common beech and sessile oak. Other objectives were to determine whether there are interspecies differences as well as intraspecies variations. Saplings were excavated in two mixed beech-oak stands and transplanted into four wooden boxes filled with a commercial soil substrate. Phosphorus fertilizer was added to two of the boxes, while the remaining boxes served as controls. Both species responded to +P treatment with advanced autumn leaf senescence in the first year of the experiment. Leaf senescence in common beech began significantly earlier, while in both species, the process was accelerated compared to that in the control. In the second year, the leaf senescence response to +P treatment was even more pronounced in both species. The +P effect on leafing phenology was absent in both common beech provenances and in an oak provenance. However, the other oak provenance showed advanced leafing, indicating the existence of intraspecies differences.

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Response of photosynthesis, growth, and acorn mass of pedunculate oak to different levels of nitrogen in wet and dry growing seasons

Cited by 6 publications

References 69 publications

Optimizing the Growth of Silage Maize by Adjusting Planting Density and Nitrogen Application Rate Based on Farmers’ Conventional Planting Habits

Optimizing the Growth of Silage Maize by Adjusting Planting Density and Nitrogen Application Rate Based on Farmers’ Conventional Planting Habits

Effects of Oxygenated Brackish Water on Pakchoi (Brassica chinensis L.) Growth Characteristics Based on a Logistic Crop Growth Model

Leaf Phenological Responses of Juvenile Beech and Oak Provenances to Elevated Phosphorus

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