Phosphate fertilization for rice irrigated in soils with different phosphorus adsorption capacities

Cardoso, Eduardo Flores; Wolter, R.; Veçozzi, Thais Antoloni; Teixeira, Juliana Brito da Silva; Carlos, Filipe Selau; Sousa, Rogério Oliveira de

doi:10.1080/03650340.2020.1827233

Cited by 4 publications

(2 citation statements)

References 22 publications

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“…Such yield results from the use of cultivars with high genetic potential and technical advances in crop management, mainly regarding irrigation, fertilization (CARDOSO et al, 2020;OGOSHI et al, 2020), sowing time density and weed control (SOSBAI, 2018).…”

Section: Introductionmentioning

confidence: 99%

Understanding the dynamics of attributes of medium and short cycle rice cultivars under nitrogen effect

et al. 2023

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Nitrogen (N) is the element supplied by the soil that limits the development of irrigated rice. The hypothesis of the present is that to meet higher demand for N by the plant due to the higher potential yield, it is not necessary to apply a higher dose of N fertilizer. This studyevaluated the efficiency of N utilization, the rate of growth and accumulations of N by plants and the grain yield of two rice cultivars, short cycle and medium cycle, with and without N fertilization. A field experiment was installed in the Rio Grande do Sul, southern Brazil. The treatment factors evaluated were cultivar, with medium and short cycles, with doses of 0 and 150 kg N ha-1. Growth curves, absorption rate, N content and leaf area index over time, root area and grain yield were analyzed. The medium cycle cultivar has a greater potential to explore the environment when compared to the short cycle rice cultivar, both for greater leaf area and root area per cultivation area, as well as for longer exploration times. Thus, the medium cycle cultivar has greater N utilization efficiency and higher grain yield.

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Section: Introductionmentioning

confidence: 99%

Understanding the dynamics of attributes of medium and short cycle rice cultivars under nitrogen effect

et al. 2023

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“…The lower adoption of cover crops in lowland is due to unfavorable chemical and physical soil attributes, especially low porosity and poor drainage, which result in lower oxygen availability, hindering the development and affecting plant yield (Martins et al, 2017). In addition to aspects related to the physical attributes of the soil, chemically lowland soils have low OM contents, low CEC (Boeni et al, 2010) and sum of bases and also low levels of phosphorus (Cardoso et al, 2020). These chemical and physical limitations reduce the options for cover crop species adapted to lowland cultivation, when compared to the options available for upland soils, in addition to requiring investments in drainage and fertilization to enable the cultivation (Menezes et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Long-term cover crops in paddy field increase enzyme activity and carbon stock and enable the system fertilization

Carlos

Sousa

Nunes

et al. 2022

Preprint

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The use of cover crops and the adoption of no-tillage are essential conservation practices to increase carbon and nitrogen stocks and increase soil microbial activity. However, in lowland areas cultivated with irrigated rice, there is a large gap on the effects of no-tillage with long-term cover crops on soil attributes, crop responses and the effect of the system fertilization. The aim of this work was to evaluate the long-term adoption of cover crops on soil microbial activity, soil carbon stock and on the response of irrigated rice to system fertilization. Treatments consisted of fallow-conventional, fallow-no tillage, Annual Ryegrass, Oat, Ornithphus micranthus and Lotus cornicultaus. In the sub-plots, system and conventional fertilization per crop were compared. The experiment was conducted in southern Brazil in an Entisol and started in the 1996/97 crop season. Cover crops associated with the use of no-tillage increases basal respiration (+ 31%) of the soil, β-glucosidase activity (+ 259%), and soil carbon and nitrogen stocks. Urease activity increased by an average of 41% in no-tillage under cover crops compared to the conventional system under fallow, with the exception of ryegrass. System fertilization promoted higher dry matter production (+ 130%) in grasses and a lower increase (+ 23%) in winter legumes. The use of long-term cover crops promoted higher rice productivity (+ 9%). In this way, the association of cover crops and no-tillage increases carbon and nitrogen stocks, the biological activity of the soil and makes possible the system fertilization in lowlands, with positive effects on productivity.

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Effect of different NPK fertilization timing sequences management on soil-petiole system nutrient uptake and fertilizer utilization efficiency of drip irrigation cotton

Dong,

Liu,

et al. 2023

Sci Rep

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In order to elucidate the effects of different nitrogen (N), phosphorus (P), and potassium (K) fertilization timing sequences management on nutrient absorption and utilization in drip irrigation cotton, field experiments were conducted from 2020 to 2021. There are six timing sequences management methods for NPK fertilization (S1–S6: 1/3Time N–1/3Time PK–1/3Time W, 1/3Time PK–1/3Time N–1/3Time W, 1/2Time NPK–1/2Time W, 1/4Time W–1/4Time N–1/4Time PK–1/4Time W, 1/3Time W–1/3Time NPK–1/3Time W), among which S6 is the current management method for field fertilization timing sequences, and S7 is the non N. The results showed that during the main growth stage, S5 accumulated more nitrate nitrogen (NO3–-N) and ammonium nitrogen (NH4+-N) content in soil between 20 and 40 cm, and accumulated more available phosphorus content in soil between 5–15 cm and 15–25 cm, S5 reducing N leaching and increasing P mobility. It is recommended to change the timing sequences management method of NPK fertilization for drip irrigation cotton to 1/4Time W–1/4Time PK–1/4Time N–1/4Time W, which is beneficial for plant nutrient absorption and utilization while reducing environmental pollution.

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Phosphate fertilization for rice irrigated in soils with different phosphorus adsorption capacities

Cited by 4 publications

References 22 publications

Understanding the dynamics of attributes of medium and short cycle rice cultivars under nitrogen effect

Understanding the dynamics of attributes of medium and short cycle rice cultivars under nitrogen effect

Long-term cover crops in paddy field increase enzyme activity and carbon stock and enable the system fertilization

Effect of different NPK fertilization timing sequences management on soil-petiole system nutrient uptake and fertilizer utilization efficiency of drip irrigation cotton

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