Phosphorus mineralization affected by urea in an intensively managed agricultural soil

Jianfeng, Ning; Arenberg, Mary R.; Arai, Yuji

doi:10.1002/saj2.20324

Cited by 4 publications

(3 citation statements)

References 62 publications

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“…Both help to illustrate the interactions between soil organic carbon and the P pool. Additionally, interactions between N and P cycling in soil have been extensively confirmed [54][55][56]. Nitrogen influences P cycling via nitrogen-bearing phosphatases, the soil pH during the nitrification process, and the N/P stoichiometry of microorganisms [57][58][59].…”

Section: Discussionmentioning

confidence: 94%

Characteristics of Organic Phosphorus Pool in Soil of Typical Agriculture Systems in South China

Jian-wu

Zeng

et al. 2022

Horticulturae

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Organic phosphorus (P) is an important potential source of plant P nutrition in agro-ecosystems. It was hypothesized that the soil organic P pools were distinguished one from another by different land-utilization patterns. A total of 38 sites were sampled, to clarify the organic P pool and its distribution in paddy fields, vegetable fields, and orchards. Soil organic P fractions, including labile organic P (LOP), moderately labile organic P (MLOP), moderately resistant organic P (MROP) and highly resistant organic P (HROP) were examined. Results showed that the soil total P (TP) and available P (AP) concentration have enhanced by 138% and 1559%, respectively, over the last four decades. The soil total organic P (TOP) accounted for 21.4% of the TP pool. Soil MLOP dominated the organic P reservoir, irrespective of land-planting pattern. Soil organic P fractions ranked as MLOP > MROP > HROP > LOP. The highest accumulations of TP, AP and TOP were in the vegetable fields, followed by orchards and paddy fields. The vegetable fields had higher LOP and MLOP levels than those of the paddy fields and orchards, whereas the paddy fields exhibited higher concentrations of MROP, and HROP. Soil pH, organic matter and available nitrogen all contributed to the buildup of the organic P pool. It was suggested that soil organic P should be considered preferentially in the management of the plant P nutrient in regional planting systems.

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Section: Discussionmentioning

confidence: 94%

Characteristics of Organic Phosphorus Pool in Soil of Typical Agriculture Systems in South China

Jian-wu

Zeng

et al. 2022

Horticulturae

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“…Ibacache and Sierra (1998) detected no differences between the absence and presence of P fertilization in 'Hass' orchards for 18 years in Spain. Recent study, reveled that urea applications stimulated P release and P mineralization after 5 days, and P bioavailability up to 40 days (Ning et al, 2021) Phosphorus influences the development of flowers and fruit set, the plant formation stage and root growth. Therefore, the application of P in this experience was carried out mainly in the first three phenological stages, occasionally extending to stages 4 and 5, depending on whether there were active roots.…”

Section: Nutritional Dynamics Of Phosphorusmentioning

confidence: 99%

Macronutrient dynamics in avocado (Persea americana Mill.) ‘Hass’ under the central peruvian coast conditions

Tomassini-Vidal

Pino-Huasacca²

2022

PJA

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The international growing demand of the avocado (Persea americana Mill.) market, together with the expansion of its agricultural area, requires the increasing of its technification, which makes necessary to have information aboutnutrient absorption in relation to its phenology. Therefore, an experiment was conducted in a commercial avocado production field of the farm “Don Ricardo” located on the central coast of Peru, in order to characterize the dynamics of macronutrients (N, P, K, Ca and Mg). The methodology followed and the results obtained will be the main guide to improve and implement more efficient fertilization strategies that will lead to higher yields and lower production costs in this crop. The experiment included 5 production cycles, from 2014-15 to 2018-19, in 7 phenological stages, collecting according to the crop development, leaves, panicles and fruits. 40 randomized plants were selected from a total of 50 plants marked as sampling area. The results were analyzed using a descriptive statistic, with box diagrams of the concentration of each nutrient by phenological stage. Two graphs per element were generated to represent the leaf dynamic and the fruit dynamic, respectively, including the data taken from the flower. It was concluded that the highest nutrient requirements of avocado were during the flowering, the fruit set and in fruits from 10 mm to 30 mm in diameter. The most abundant form of nitrogen was nitric, and it was accumulated mainly in the productive organs. The phosphorus, potassium, calcium and magnesium concentrations decreased as the fruit grew, and calcium and magnesium concentrations in leaves were higher than in fruits.

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“…Following death and decay of microorganisms, the sequestered P is returned to the soil and becomes an important source of P that can be absorbed for use by plants (Sokol et al, 2022). Additionally, phosphatases play an important role in mineralization of organic P and promotes the production of soil available P (Ning et al, 2021). The arable land in the Pearl River Delta (PRD) covers 602,500 ha (Guangdong Bureau of Statistics, 2018).…”

Section: Introductionmentioning

confidence: 99%

Rice-fish-duck system regulation of soil phosphorus fraction conversion and availability through organic carbon and phosphatase activity

Wang

Yang²,

Zhang³

et al. 2022

Front. Environ. Sci.

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Integrated ecological farming combines rice growing with aquaculture, and is an effective way to improve soil productivity by increasing soil nutrient supply. However, the long-term effects of such integrated farming on phosphorus fractions and phosphorus availability of paddy soils in the Pearl River Delta (PRD) remain unknown. A four-year field experiment compared the phosphorus fractions with paddy field in rice-fish-duck system (RFD), rice-vegetable cropping system (RVS) and conventional rice system (CRS) in the PRD. SOC and phosphorus fractions were significantly influenced by cropping systems. RFD significantly increased SOC and phosphorus in the soil. Soil phosphorus was dominated by moderately labile P (40.67–49.41%). RFD also significantly increased soil microbial biomass carbon, microbial biomass phosphorus, and acid phosphatase activity (ACP) by 67.68, 46.68, and 15.87% compared to RVS, and by 134.14, 65.99, and 30.20% compared to CRS, respectively. SOC and ACP were the primary factors influencing the conversion and effectiveness of soil phosphorus. The RFD can alleviate low phosphorus activity in PRD paddy soils through the combined effect of chemical and biological process, while promoting a sustainable soil nutrient cycle within the ecosystem and guiding the sustainable development of rational soil fertilization in the PRD.

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Phosphorus mineralization affected by urea in an intensively managed agricultural soil

Cited by 4 publications

References 62 publications

Characteristics of Organic Phosphorus Pool in Soil of Typical Agriculture Systems in South China

Characteristics of Organic Phosphorus Pool in Soil of Typical Agriculture Systems in South China

Macronutrient dynamics in avocado (Persea americana Mill.) ‘Hass’ under the central peruvian coast conditions

Rice-fish-duck system regulation of soil phosphorus fraction conversion and availability through organic carbon and phosphatase activity

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