Nitrogen fertilization compensation the weak photosynthesis of Oilseed rape (Brassca napus L.) under haze weather

Cong, Rihuan; Liu, Tao; Lu, Piaopiao; Ren, Tao; Li, Xiaokun; Lu, Jianwei

doi:10.1038/s41598-020-60695-y

Cited by 14 publications

(7 citation statements)

References 43 publications

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“…Hence, N2-fertilizer (30 kg/667 m 2 ) was identified as the optimization nitrogen fertilization for lotus growth and development. In addition, compared with CK, the total starch, amylose, amylopectin, and plot yield under N-fertilizer significantly increased (Figure 3), which was consistent with previous research that the application of nitrogen fertilizer could improve crop yield [47][48][49].…”

Section: Discussionsupporting

confidence: 90%

The Effect of Nitrogen Fertilizer on Rhizome Quality and Starch Physicochemical Properties in Nelumbo nucifera

et al. 2022

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Optimal nitrogen (N) supply significantly increases the starch content, components, and yield of Nelumbo nucifera. However, the underlying transcriptional mechanism and starch accumulation under dose-dependent nitrogen fertilizer are poorly understood. In this study, we found that the optimal nitrogen fertilizer (N2, 30 kg/667 m2) was more beneficial to improve the stomatal conductance (Gs), leaf intercellular CO2 concentration (Ci), transpiration rate (Tr), net photosynthetic rates (Pn), chlorophyll content, starch content, and plot yield. What is more, N2-fertilizer treatment induced a higher number of starch granule, AP2 content, and RVA curve peaks. Then, the transcriptomic analyses performed in control (CK) and N2-fertilizer treatment (N2) showed that the expressions of many differentially expressed genes (DEGs) were significantly induced by N2. KEGG and GO enrichment analysis showed that these DEGs were significantly enriched in biosynthesis of secondary metabolites, phenylpropanoid biosynthesis, carbon metabolism, carbon fixation in photosynthetic organisms, plant hormone signal transduction, and starch and sucrose metabolisms, suggesting that nitrogen fertilizer induced alterations of photosynthesis- and starch accumulation-related gene expression profiles. Finally, six photosynthesis-related genes and fourteen starch synthesis-related genes were confirmed to be required for starch accumulation in the Nelumbo nucifera development. qPCR analysis of six starch accumulation-related genes demonstrated the accuracy of the transcriptome. Hence, our study provides valuable resource for future studies on molecular mechanisms underlying starch accumulation in Nelumbo nucifera rhizome under N-fertilizer treatment.

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Section: Discussionsupporting

confidence: 90%

The Effect of Nitrogen Fertilizer on Rhizome Quality and Starch Physicochemical Properties in Nelumbo nucifera

et al. 2022

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“…Our results showed that the cumulative sunshine hours parameter positively affected yield (Figure 3C) but decreased in most planting areas during 2008-2019 (Table 2). The overwintering period is critical for the growth of winter rapeseed, and winter haze and cloudy conditions reduce the intensity and stability of radiation, leading to a decrease in the photosynthetic productivity of winter rapeseed during vegetative growth (Cong et al, 2020). We also found that the UYR had the least cumulative sunshine hours and the lowest rapeseed yield compared with the other three planting zones (Table 1).…”

Section: Comparison Of Impacts Of Temperature Precipitation and Sunsh...mentioning

confidence: 68%

The optimisation of rapeseed yield and growth duration through adaptive crop management in climate change: evidence from China

Chen

Yang

et al. 2022

Ital J Agronomy

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Crop yield is influenced by plant growth and development; both are affected by climatic variables and crop management practices. Therefore, understanding the effects of climate variables and management practices on rapeseed (Brassica napus L.) yield and growth duration (GD) is essential for developing strategies for agricultural systems based on changing climatic conditions. Thus, we quantified the respective contributions of climate change and crop management to rapeseed yield and GD between 2008 and 2019 in China using a first-difference multivariate regression model. Our results showed that: i) based on observed rapeseed yield and phenological data, the average planting date was delayed by –1.1 to 9.5 days decade–1, the average maturity date was advanced by 4.4 to 9.9 days decade–1, the average GD was shortened by 6.0 to 19.6 days decade–1 and the average yield increased by 12.82 to 61.5 kg ha–1 year–1; ii) the relative contributions of climate change and crop management to winter rapeseed yield were changed from –20% to +39% and from +61% to +80%, respectively, and the relative contributions to GD were changed from –10% to +15% and from –85% to +97%, respectively; iii) among the three climatic factors considered in this study, the climatic factor that caused the most remarkable change in winter rapeseed yield and GD was different in different regions. Overall, compared with cumulative temperature, cumulative sunshine hours may be the most critical climate factor limiting rapeseed yield in the Yangtze River Basin, especially in the upper reaches of the Yangtze River. Our results suggest that stakeholders select highyielding cultivars to optimise crop management and adaptation strategies in different agroecological zones. Highlights - The growth duration of winter rapeseed was shortened, and the yield increased in most stations. - Crop management to changes in GD and yield of winter rapeseed was greater than the impact of climate change. - Cumulative sunshine hours may be the most critical climate factor limiting rapeseed yield in the Yangtze River Basin.

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“…Basumatary et al (2015) reported similar results in a field study on ricerice cropping sequence in Inceptisols. Moreover, straw incorporation could improve the crop N and K nutrition, beneficial for photosynthesis and is helpful in minimizing the effects caused by climate change (Cong et al 2020). The wide variability in crop yield and soil nutrient status in both strips are the basic parameters needed for establishing site-specific target yield-based prescription equations of wheat crops.…”

Section: Resultsmentioning

confidence: 99%

Fertilizer prescription for target yield of wheat (Triticum aestivum) in alluvial soils

2022

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Soil test crop response correlation studies were carried out to establish target yield prescription equations for wheat (Triticum aestivum L.) under the Integrated Plant Nutrition System (IPNS) at Research Farm of Punjab Agricultural University, Ludhiana, Punjab during 2019–2021. Fertilizer prescriptions under NPK alone and IPNS were developed for wheat crops using Ramamoorthy's “Inductive cum Targeted yield approach”. The amount of nutrients needed for producing 100 kg of wheat were 2.06, 0.78, and 1.95 kg/q of N, P2O5 and K2O, respectively. The nutrients contributed by soil and fertilizer were found to be 52.3% and 54% N, 11.7% and 50% P, and 20.2% and 20.6% K, respectively. Likewise, the organic material in the form of rice residue incorporation contributed 42.0% N, 15.3% P, and 26.0% K and increased the nutrient (N, P and K) uptake. The incorporated rice residue increased the soil organic carbon and microbial population substantially resulting in more mineralization thereby increasing nutrient availability. Therefore, the site-specific targeted yield-based approach used for developing fertilizer prescription equations gives a shred of strong evidence for maintaining soil health with higher crop yields and efficient nutrient management.

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Nitrogen fertilization compensation the weak photosynthesis of Oilseed rape (Brassca napus L.) under haze weather

Cited by 14 publications

References 43 publications

The Effect of Nitrogen Fertilizer on Rhizome Quality and Starch Physicochemical Properties in Nelumbo nucifera

The Effect of Nitrogen Fertilizer on Rhizome Quality and Starch Physicochemical Properties in Nelumbo nucifera

The optimisation of rapeseed yield and growth duration through adaptive crop management in climate change: evidence from China

Fertilizer prescription for target yield of wheat (Triticum aestivum) in alluvial soils

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