Differential effects of nitrogen managements on nitrogen, dry matter accumulation and transportation in late-sowing winter wheat

Guanglei, 吴光磊 Wu; Liyue, 郭立月 Guo; Zhengyong, 崔正勇 Cui; Yong, 李勇 Li; Yanping, 尹燕枰 Yin; Zhenlin, 王振林 Wang; Gaoming, 蒋高明 Jiang

doi:10.5846/stxb201202270263

Cited by 5 publications

(2 citation statements)

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“…A key indicator of photosynthetic capacity and the foundation of high crop production is material buildup. A major element limiting the creation of crop yield is the distribution ratio of dry matter in different organs, which contributes significantly to yield 16 . Studies have indicated that the process of photosynthesis serves as the basis for the accumulation of dry matter.…”

Section: Introductionmentioning

confidence: 99%

Effects of continuous cropping and application of bio-organic fertilizer on photosynthetic performance, dry matter accumulation and distribution of sugar beet

Guo,

Tian,

Song

et al. 2024

Preprint

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A major problem in the cultivation of sugar beets is continuous cropping obstruction in China. A study was carried out in the 2020–2021 season at the Agriculture and Forestry Sciences of Ulanqab, Inner Mongolia, to assess the impacts on the on photosynthetic performance, dry matter accumulation and distribution of sugar beet of various continuous cropping years with bio-organic fertilizers. A split plot system with three replications was set up to carry out the field testing. The main plots had five planting years, with the fresh cropping of each growing season serving as the control (CK) and continuous cropping for one, two, three, and four years (designated as C1, C2, C3, and C4, respectively). The subplots had two bio-organic fertilizer levels: 6000 kg ha-2 (Y) and 0 (N). The results showed that continuous cropping inhibited the photosynthesis of sugar beet and hindered the ability of dry matter accumulation and distribution in leaf, petiole and root. With the extension of continuous cropping years, net photosynthetic rate (Pn), stomatal conductance (Gs), transpiration rate (Tr), intercellular CO2 concentration (Ci) and SPAD value of sugar beet significantly decreased, and the dry matter mass of leaves, petioles and roots significantly decreased. Compared with CK, the SPAD, Pn, Ci, Tr, Gs of continuous cropping treatments were significantly reduced by an average of 10.09-48.21%, 14.60-43.19%, 12.00-42.86%, 7.77-43.83%, 9.61-37.68%, respectively. The dry matter accumulation of leaf, petiole, root, and whole plant reduced by 11.86-49.61%, 9.58-44.77%, 17.26-53.76%, 10.62-49.79%, respectively. And with the increase of continuous cropping years, the inhibitory effects were enhanced, and there were no significant differences in performance between continuous cropping for 1 year and 2 years. The continuous cropping affected the dry matter accumulation distribution of sugar beet, it significantly increased the dry matter ration of above ground and decreased the dry matter ration of root, inhibited the transfer of dry matter from aboveground to root. These impacts ultimately led to a decrease in the root shoot ratio and yield of sugar beet. Compared with CK, the root shoot ratio of continuous cropping treatments significantly decreased by 3.62-19.76%. Under continuous cropping conditions, the application of bio-organic fertilizer could effectively promote the photosynthesis of sugar beet, and better regulate the distribution and transport of dry matter of sugar beet, and the effect of bio-organic fertilizer was significant under continuous cropping for 1-2 years. Compared with C1N and C2N, the Pn, Ci, Tr, Gs of C1Y and C2Y were significantly increased by 12.79-22.50%, 14.76%-16.47%, 4.76%-13.08%, 8.51%-12.70%, and 13.69%-18.91%, 12.17%-14.60%, 5.71%-15.14%, 7.58%-15.41%, respectively. The dry matter accumulation of leaf, petiole, root, whole plant was significantly increased by 8.32%-16.18%, 10.80%-13.33%, 14.93%-20.13%, 14.12%-15.43%, and 10.65%-15.32%, 6.58%-15.63%, 15.37%-20.94%, 12.68%-16.85%, respectively. And the root shoot ration increased by 4.58%-8.56% and 4.52%-7.35%. Above all, sugar beet is one of the crops with obvious obstacles to continuous cropping, and under short-term continuous cropping, the application of bio-organic fertilizer has significant improvement effects. These results can provide scientific basis for bio-organic fertilizer to alleviate the problem of sugar beet continuous cropping.

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Section: Introductionmentioning

confidence: 99%

Effects of continuous cropping and application of bio-organic fertilizer on photosynthetic performance, dry matter accumulation and distribution of sugar beet

Guo,

Tian,

Song

et al. 2024

Preprint

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“…K-efficient genotypes have a higher acquisition of K from soil (uptake efficiency) and/or higher dry matter production per unit of K taken up (utilization efficiency); moreover, genotypes efficient in K uptake may have a larger surface area of contact between the roots and soil and increased uptake at the root-soil interface to maintain a larger diffusive gradient towards the roots [19]. For example, Wu et al [20] showed that fertilization significantly improved the dry matter accumulation and yield of winter wheat and that there was a highly significant positive correlation between them. In turn, Gu et al [21] found that the dry matter accumulation in millet before flowering accounted for 55-60% of the total accumulation, and the contribution rate to spikes was 8-10%.…”

Section: Introductionmentioning

confidence: 99%

Potassium Increases Nitrogen and Potassium Utilization Efficiency and Yield in Foxtail Millet

Yin,

Li,

et al. 2023

Agronomy

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Field experiments were conducted to investigate the effects of K application on the nitrogen and potassium utilization efficiency and yield of foxtail millet (Setaria italica L.). The experiment was performed with a completely randomized design with two millet cultivars (Jingu 21 and Zhangza 10) and five K2O rates (0, 60, 120, 180, and 240 kg/hm2) in 2020 and 2021. We found that K promoted K and N absorption; significantly increased dry matter (DM), N, and K accumulation in millet organs; caused dry matter accumulation to peak earlier; and increased the DM accumulation rate. In addition, K accumulation preceded that of DM or N. Relative to the crop cycle, most K (61.07%) accumulated at booting, whereas N accumulated mostly (33.86%) during grain filling. N absorption efficiency increased by 31.87%, and the apparent and agronomic utilization rate of K fertilizer remained high, increasing millet yield, which peaked at a K rate of 180 kg/hm2 for both cultivars, by 29.91% and 31.51% in Jingu 21 and Zhangza 10, respectively, relative to untreated controls. Stepwise regression and path analysis showed that the leaf and spike K accumulation, stem N accumulation, and stem DM were the main factors affecting yield, with DM having the greatest direct effect, followed by leaf K accumulation. The K concentration (0.77–3.04%) in Zhangza 10 was higher than that in Jingu 21 (0.69–2.91%) in untreated plants. Under the same K application rate, N and K accumulation and the harvest index were higher for Zhangza 10 than those for Jingu 21, and the nutrient utilization ability was greater for Zhangza 10. The results demonstrated that rational K fertilizer application can increase K concentration and accumulation in leaves, promote N metabolism and accumulation, increase N and K utilization efficiency, and improve DM accumulation and millet yield.

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Effects of drip irrigation nitrogen coupling on dry matter accumulation and yield of Summer Maize in arid areas of China

Lei

et al. 2021

Field Crops Research

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Differential effects of nitrogen managements on nitrogen, dry matter accumulation and transportation in late-sowing winter wheat

Cited by 5 publications

References 0 publications

Effects of continuous cropping and application of bio-organic fertilizer on photosynthetic performance, dry matter accumulation and distribution of sugar beet

Effects of continuous cropping and application of bio-organic fertilizer on photosynthetic performance, dry matter accumulation and distribution of sugar beet

Potassium Increases Nitrogen and Potassium Utilization Efficiency and Yield in Foxtail Millet

Effects of drip irrigation nitrogen coupling on dry matter accumulation and yield of Summer Maize in arid areas of China

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