Effects of combined nitrogen and phosphorus application on protein fractions and nonstructural carbohydrate of alfalfa

Zhao, Jiantao; Huang, Rongzheng; Xu, Qun; Ma, Chunhui; Li, Man; Zhang, Qianbing

doi:10.3389/fpls.2023.1124664

Cited by 6 publications

(3 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For perennial herbage, the application of appropriate quantities of N can improve aboveground biomass yield and grassland stand vegetation coverage, as well as meet the demands of grassland animal husbandry and ecological restoration. In addition, this treatment can effectively increase seed yield, as well as prolong the lifespan of forage seed fields ( Gislum & Boelt, 2009 ; Zhao et al, 2023 ). Nonetheless, seed yield constantly relies on the multiplicative interaction of various yield components (NTs, NFTs, and TSW) ( Dewitt et al, 2021 ).…”

Section: Discussionmentioning

confidence: 99%

Nitrogen addition enhances seed yield by improving soil enzyme activity and nutrients

Mi,

Luo,

Liu

et al. 2024

PeerJ

View full text Add to dashboard Cite

Nitrogen (N) addition is a simple and effective field management approach to enhancing plant productivity. Nonetheless, the regulatory mechanisms governing nitrogen concentrations and their effect on soil enzyme activity, nutrient levels, and seed yield in the Festuca kirilowii seed field have yet to be elucidated. Therefore, this study sought to investigate the effect of N fertilizer application on soil enzyme activities, soil nutrients, and seed yield of F. kirilowii Steud cv. Huanhu, the only domesticated variety in the Festuca genus of the Poaceae family, was investigated based on two-year field experiments in the Qinghai–Tibet Plateau (QTP). Results showed that N input significantly affected soil nutrients (potential of hydrogen, total nitrogen, organic matter, and total phosphorus). In addition, soil enzyme activities (urease, catalase, sucrase, and nitrate reductase) significantly increased in response to varying N concentrations, inducing changes in soil nutrient contents. Introducing N improved both seed yield and yield components (number of tillers and number of fertile tillers). These findings suggest that the introduction of different concentrations of N fertilizers can stimulate soil enzyme activity, thus hastening nutrient conversion and increasing seed yield. The exhaustive evaluation of the membership function showed that the optimal N fertilizer treatment was N4 (75 kg·hm−2) for both 2022 and 2023. This finding provides a practical recommendation for improving the seed production of F. kirilowii in QTP.

show abstract

Section: Discussionmentioning

confidence: 99%

Nitrogen addition enhances seed yield by improving soil enzyme activity and nutrients

Mi,

Luo,

Liu

et al. 2024

PeerJ

View full text Add to dashboard Cite

show abstract

“…In addition, by promoting alfalfa photosynthesis, N contributes to enhancing the synthesis and availability of carbon-assimilating enzymes [40]. However, given that it has been established that excessive N application (e.g., 240 kg N ha −1 ) does not promote additional increases in alfalfa yield, this would imply that alfalfa plants may not require supplementary subsurface N accumulation to achieve higher production [41,42]. 3.…”

Section: Discussionmentioning

confidence: 99%

Effect of Nitrogen Application and Cutting Frequency on the Yield and Forage Quality of Alfalfa in Seasonal Cultivation

Zhang,

Zhai,

et al. 2023

Agriculture

View full text Add to dashboard Cite

Although nitrogen application and cutting frequency (CF) are two important factors affecting forage productivity and quality, their effects on alfalfa (Medicago sativa L.), particularly in humid areas, remain less understood. Here, we investigated the fertilization and cutting regimes for seasonal alfalfa cultivation in humid areas in southern China. Treatments performed over a 2-year period were of a split-plot design with four N application rates (60, 120, 180, and 240 kg N ha−1) and three CFs (five, four, and three times.). After cutting, forage components, yield, and quality were measured. In both 2-year cutting cycles, the effects of N application × CF interactions on forage yield and quality were non-significant. N application and CFs influenced plant height, mass shoot−1, leaf area shoot−1, and shoots plant−1. CF had remarkable effects on forage quality under different N applications, with forage cut five times having the best nutritive value and quality. However, neutral and acid detergent fiber contents were lower than when cutting three times, and produced the lowest yields. Forage cut four times had the highest in vitro digestible dry matter. In conclusion, to obtain high yields and desirable quality, the application of 180 kg N ha−1 and cutting three to four times in spring could be a suitable strategy for alfalfa forage production during seasonal cultivation in humid areas of southern China.

show abstract

“…Meanwhile, Fan et al [10] found that N application could improve the yield of both young and old alfalfa stands owing to the absence of nodulation. Generally, N application has a significant effect on the alfalfa quality, which could increase the total nitrogen content, nitrate nitrogen and ammonium nitrogen content, and crude protein content (CP) but reduce the neutral detergent fiber (NDF) and acid detergent fiber (ADF) [22][23][24]. N fertilization could increase crude protein by improving non-protein nitrogen (NPN) that can be degraded to ammonia in the rumen [25,26].…”

Section: Introductionmentioning

confidence: 99%

Alfalfa (Medicago sativa L.) Nitrogen Utilization, Yield and Quality Respond to Nitrogen Application Level with Center Pivot Fertigation System

Wang,

Li,

Guo

et al. 2023

Agronomy

View full text Add to dashboard Cite

Nitrogen (N) application with a center-pivot fertigation system is commonly used for alfalfa production in the North China Plain, with its barren soil, but improper N application has resulted in lower N use efficiency and even negative effects on yield and quality. The effects of N application levels on soil NO3−-N content, nitrogen utilization, yield and quality of alfalfa at various cuttings and established years were evaluated under sprinkler fertigation to optimize the N application schedule. Four N application levels of 0, 12.5, 25 and 37.5 kg N ha−1 (N0, N1, N2 and N3) for each cutting were applied to alfalfa at the early vegetative stage from the first to third year after establishment. The results showed that the variation in soil NO3−-N content was mainly concentrated in the topsoil (0–40 cm) after N application via sprinkler fertigation. N uptake amount was dramatically improved through the N application for one-year-old alfalfa. Compared to the yield under the N0 treatment, the N application significantly improved the yield of alfalfa at the first two cuttings in the first year. The N use efficiency generally reached a high value with a low N application level. N application had an insignificant effect on the alfalfa quality classification during the three years. For obtaining high yield, quality and N use efficiency of alfalfa planted in the North China Plain, the N application level is recommended as 12.5 kg N ha−1 at the first cutting and 37.5 kg N ha−1 at the second cutting for one-year-old alfalfa.

show abstract

Effects of combined nitrogen and phosphorus application on protein fractions and nonstructural carbohydrate of alfalfa

Cited by 6 publications

References 43 publications

Nitrogen addition enhances seed yield by improving soil enzyme activity and nutrients

Nitrogen addition enhances seed yield by improving soil enzyme activity and nutrients

Effect of Nitrogen Application and Cutting Frequency on the Yield and Forage Quality of Alfalfa in Seasonal Cultivation

Alfalfa (Medicago sativa L.) Nitrogen Utilization, Yield and Quality Respond to Nitrogen Application Level with Center Pivot Fertigation System

Contact Info

Product

Resources

About