Yield, nutrient quality and water and phosphorus recovery efficiencies of alfalfa under different drip irrigation and phosphorus levels in Northern Xinjiang, China

Li, Shengyi; Liu, Xuanshuai; Sun, Yanliang; Ma, Chunhui; Gu, Xinli; Zhang, Qianbing

doi:10.1111/gfs.12563

Cited by 7 publications

(5 citation statements)

References 56 publications

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“…(2020). Our data were also consistent with P recovery ranges for other forages, such as mixed pastures of perennial ryegrass ( Lolium perenne L.) with white clover ( Trifolium repens L.) (8%–56%; Schils & Snijders, 2004) and alfalfa ( Medicago sativa L.) (7%–36%; Li et al., 2022).…”

Section: Discussionsupporting

confidence: 86%

Agronomic impacts of new regulations governing land application of Class B biosolids in Florida

Vieira‐Filho,

Silveira,

Kohmann

et al. 2023

Agronomy Journal

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Although land application of biosolids is an attractive option for beneficial reuse, it represents a complex challenge for government and private organizations. This 3‐yr field study evaluated the agronomic impacts of reduced biosolids rates imposed by new regulations in Florida on bahiagrass (Paspalum notatum Flugge) herbage accumulation and nutritive value. Treatments consisted of a factorial combination of 2 phosphorus (P) sources (triple superphosphate and biosolids) applied at 0 (control), 20 (low), 40 (intermediate), and 60 kg total P ha−1 (high). Triple superphosphate plots received the same N load (from ammonium nitrate) as the corresponding biosolids treatments. Bahiagrass herbage accumulation increased with increasing P and associated N rates. Bahiagrass annual herbage accumulation ranged from 2120 kg ha−1 in 2022 to 6970 kg ha−1 in 2020 and was 33 to 80% less than previously published data. This was likely due to the reduced biosolids rates that did not supply sufficient N and P to sustain adequate forage production. Lesser herbage accumulation will likely lead to greater application of inorganic fertilizers, which generally have greater environmental footprint than biosolids. Biosolids generally resulted in either similar or greater bahiagrass crude protein, in vitro digestible organic matter, and tissue mineral concentrations than inorganic fertilizer. Similarly, no differences in bahiagrass N and P recovery between biosolids and inorganic fertilizer were observed. This study along with a significant body of literature demonstrated that biosolids have considerable fertilizer value and can be an effective alternative to commercial inorganic fertilizer while also providing environmental and economic benefits.This article is protected by copyright. All rights reserved

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Section: Discussionsupporting

confidence: 86%

Agronomic impacts of new regulations governing land application of Class B biosolids in Florida

Vieira‐Filho,

Silveira,

Kohmann

et al. 2023

Agronomy Journal

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“…Phosphorus in plants is highly mobile and allocation of P in plants is an important strategy for improving N and P utilization efficiency under nutrient deficiency ( Seleiman et al., 2020b ). Consequently, in alfalfa production, it is common to apply additional N and P fertilizers to increase yield and enhance quality ( Li et al., 2022a ).…”

Section: Introductionmentioning

confidence: 99%

“…However, only a small portion of the applied P fertilizer is typically utilized by alfalfa. In that, a large portion of applied P fertilizer becomes fixed and accumulates in the soil profile, forming organic and insoluble inorganic P, which is difficult for alfalfa to directly absorb ( Li et al., 2022a ). Reduced soil P availability not only reduces alfalfa growth and quality, but also represents a significant economic and environmental challenge, relating to fertilizer and application costs, and surface and groundwater impairment ( Gu et al., 2023 ).…”

Section: Introductionmentioning

confidence: 99%

Effects of combined nitrogen and phosphorus application on soil phosphorus fractions in alfalfa (Medicago sativa L.) production in China

Yang,

Li,

Sun

et al. 2024

Front. Plant Sci.

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Nitrogen (N) and phosphorus (P) fertilizers change the morphological structure and effectiveness of P in the soil, which in turn affects crop growth, yield, and quality. However, the effects and mechanism of combined N and P application on the content of P fractions and the transformation of effective forms in alfalfa (Medicago sativa L.) production is unclear. This experiment was conducted with four levels of N: 0 (N0), 60 (N1), 120 (N2) and 180 kg·ha-1 (N3); and two levels of P (P2O5): 0 (P0) and 100 kg·ha-1 (P1). The results indicated that, under the same N level, P application significantly increased soil total N, and total P, available P, and content of various forms of inorganic P when compared to no P application, while decreasing the content of various forms of organic P and pH value. In general, under P0 conditions, soil total N content tended to increase with increasing N application, while total P, available P content, pH, inorganic P content in all forms, and organic P content in all forms showed a decreasing trend. When compared to no N application, insoluble P (Fe-P, O-P, Ca10-P) of the N application treatments was reduced 2.80 - 22.72, 2.96 - 20.42, and 5.54 - 20.11%, respectively. Under P1 conditions, soil total N and O-P tended to increase with increasing N application, while, pH, Ca2-P, Al-P, Fe-P, Ca10-P, and organic P content of each form tended to decrease. Total P, available P, and labile organic P (LOP) of N application reduced 0.34 - 8.58, 4.76 - 19.38, and 6.27 - 14.93%, respectively, when compared to no application. Nitrogen fertilization reduced the soil Ca2-P ratio, while P fertilization reduced soil Fe-P, moderately resistant organic P (MROP), and highly resistant P (HROP) ratios, and combined N and P elevated the Ca8-P to LOP ratio. The results of redundancy analysis showed that soil total N content, available P content, and pH were the key factors affecting the conversion of P fractions in the soil. Nitrogen and P reduced the proportion of soil insoluble P, promoted the activation of soil organic P, resulting in accumulation of slow-acting P in the soil, thereby improving the efficiency of soil P in alfalfa production.

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“…Berg et al (2003) determined that approximately 70 kg ha -1 P fertilizer caused nearly 1 t ha -1 increment in annual dry matter production. In another research, Li et al (2022) determined that increasing P fertilizer increased the yield of alfalfa up to 100 kg ha -1 . According to Lissbrant et al (2009), a significant increment in alfalfa forage yield could be observed at 25 kg ha -1 P fertilization or more.…”

Section: Introductionmentioning

confidence: 99%

Irrigation and Phosphorus Management of Alfalfa Under Semi-Arid Conditions

ERKOVAN

İleri

Erkovan

et al. 2022

Turkish Journal of Field Crops

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The frequency of irrigation and deficit irrigation management are drawing attention because water resources are becoming limited year by year, especially in the last decade. Besides, the rate and application time of P fertilization gained more importance just after the researchers found out it is more effective than N-fertilizing for alfalfa cultivation. This study aimed to determine the effects of different irrigation managements (seasonal deficit, intervals of 5, 7, and 9 days), phosphorus application season (autumn and spring), and the rate of P fertilizer (0, 30, 60, 90 kg ha-1) on the yield and forage quality of alfalfa. The experiment was conducted in the 2019-2020 years, which was the 3rd and the 4th years of alfalfa respectively, under semi-arid Mediterranean conditions. The stand height and fiber content (NDF) were higher in the autumn application. However, forage contained more nitrogen in the spring application. A higher amount of water (800 mm) with higher irrigation frequency (5 days – I5d) caused a reduction in yield due to water excess. The yield was the highest (21.34 t ha-1) and the forage quality was better in 448 mm water application with 9 days intervals (I9d). Seasonal deficit water management caused a significant loss in yield and quality. Nevertheless, 18.04 t ha-1 dry matter yield with 24.05 % CP content was recorded at seasonal deficit water management. P fertilization increased the yield and forage quality. The yield was the highest (20.23 t ha-1) at the rate of 90 kg ha-1 P fertilizer, but yield and forage quality characteristics were similar between 30, 60, and 90 kg ha-1 P. The results showed that P fertilization could be done in both autumn and spring at the rate of 30 kg ha-1 and 448 mm water could be applied at 9 days intervals for fulfilling performance under semi-arid Mediterranean conditions. When water resources are very scarce, the seasonal water deficit should be applied, especially in late summer.

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Yield, nutrient quality and water and phosphorus recovery efficiencies of alfalfa under different drip irrigation and phosphorus levels in Northern Xinjiang, China

Cited by 7 publications

References 56 publications

Agronomic impacts of new regulations governing land application of Class B biosolids in Florida

Agronomic impacts of new regulations governing land application of Class B biosolids in Florida

Effects of combined nitrogen and phosphorus application on soil phosphorus fractions in alfalfa (Medicago sativa L.) production in China

Irrigation and Phosphorus Management of Alfalfa Under Semi-Arid Conditions

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