Nitrogen Uptake by the Rice Plant and Changes in the Soil Chemical Properties in the Paddy Rice Field during Yearly Application of Anaerobically-Digested Manure for Seven Years

Nishikawa, Takeshi; Li, Kunzhi; Inamura, Tatsuya

doi:10.1626/pps.17.237

Cited by 10 publications

(7 citation statements)

References 8 publications

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“…Different lowercase alphabets indicate significant differences (P < 0.05). (Nishikawa et al 2014) and could reduce grain quality. Indeed, we provide partial evidence that the application of residual slurry can balance improvements in grain yield while controlling methane emissions.…”

Section: Discussionmentioning

confidence: 99%

Effect of the long-term application of anaerobically digested residual slurry on methane emissions in a rice paddy field

Tanaka

Nitta

Kido

et al. 2017

Soil Science and Plant Nutrition

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The anaerobic digestion of livestock manure is an environmentally compatible technology used for the production of renewable energy. Anaerobically digested residual slurry has been used worldwide as a liquid fertilizer in both upland and paddy fields. However, a controversial question remains as to whether the application of slurry to rice paddy fields increases methane emissions; although methane is one of the most prevalent greenhouse gases, little is known about the effects of the long-term application of residual slurry on methane emission. In this study, we repeatedly applied slurry to a paddy field for six years at different application rates (10, 15, and 20 g N m −2 based on ammoniumnitrogen content). At the fifth and sixth years of application, we evaluated the effect in terms of methane flux and soil total carbon content. The effect of the long-term application of the slurry (10 g N m −2 ) on grain yield was equivalent to that of chemical fertilizer (10 g N m −2 ). The application of the residual slurry was likely to increase the cumulative methane emissions during rice growing season in both 2006 and 2007. On the other hand, we observed that soil total carbon did not accumulate significantly in the soil. Thus, we cannot rule out the potential risk of additional methane emissions caused by the application of the residuary slurry to paddy fields.

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Section: Discussionmentioning

confidence: 99%

Effect of the long-term application of anaerobically digested residual slurry on methane emissions in a rice paddy field

Tanaka

Nitta

Kido

et al. 2017

Soil Science and Plant Nutrition

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“…Several authors have shown that organic amendments play a crucial role in both short-term nutrient supply and long-term build-up of soil quality in flood-irrigated rice crops (Javier et al, 2002;Knoblauch et al 2012;Nishikawa et al, 2014). In addition, when properly managed, they decrease potential polluters and increase yield, which makes them important sources of income and added value, since they are resources available on the farms and may be used in organic production (Liang et al, 2017;Mushtaq et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…In flood-irrigated rice, organic fertilizers must be incorporated into dry soil approximately 30 days before soil flooding and rice sowing, to enable the mineralization process and to prevent the formation of organic acids during the anaerobic decomposition of organic material (Reunião…, 2016). Applying poultry manure to rice plants at their developmental stages has negative practical implications and causes environmental pollution (Nishikawa et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Extended use of poultry manure as a nutrient source for flood-irrigated rice crop

Schmidt

Knoblauch

2020

Pesq. agropec. bras.

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How to cite SCHmIdt, F.; KNoBlAuCH, R. Extended use of poultry manure as a nutrient source for floodirrigated rice crop. Pesquisa Agropecuária Brasileira, v.55, e00708, 2020. doI: https://doi. Abstract -The objective of this work was to evaluate changes in the soil chemical properties, nitrogen use efficiency, and grain yield of flood-irrigated rice fields after the addition of poultry manure during five years. Trials were carried out in a randomized complete block design, with three replicates. The treatments were: chemical fertilizers, N-P 2 O 5 -K 2 O; control, no fertilizers; and poultry manure doses, 2.5, 5.0, and 10.0 Mg ha -1 . Poultry manure increased soil pH, base saturation, and phosphorus, potassium, calcium, and zinc contents more than the chemical fertilizers. Adding poultry manure to the soil increased N ammonification (35 mg kg -1 NH 4 + -N) from the first to the fourth week after rice was sown. The exclusive use of poultry manure was not sufficient to provide adequate nutrition to rice plants after the decrease in NH 4 + -N content in the soil. The cumulative N uptake by plants and rice yield were lower with poultry manure application than with the chemical fertilizers. Adding poultry manure to flood-irrigated rice fields for five years alters soil chemical properties, improves fertility, does not favor nitrogen use efficiency by rice plants, and promotes a lower grain yield than the chemical fertilizers. Uso prolongado de cama de aviário como fonte de nutrientes para cultura de arroz irrigado por inundaçãoResumo -O objetivo deste trabalho foi avaliar as propriedades químicas do solo, a eficiência do uso de nitrogênio e a produtividade de campos de arroz irrigado por inundação após adição de cama de aviário durante cinco anos. Os ensaios foram conduzidos em delineamento de blocos ao acaso, com três repetições. Os tratamentos foram: adubação química, N-P 2 O 5 -K 2 O; controle, sem fertilizantes; e doses de cama de aviário, 2,5, 5,0 e 10,0 Mg ha -1 . A cama de aviário aumentou o pH, a saturação por bases e os teores de fósforo, potássio, cálcio e zinco do solo mais que os fertilizantes químicos. A aplicação de cama de aviário aumentou a amonificação do N (35 mg kg -1 de N-NH 4 + ) da primeira à quarta semana após a semeadura do arroz. O uso exclusivo de cama de aviário não foi suficiente para fornecer nutrição adequada ao arroz após a diminuição do conteúdo de N-NH 4 + no solo. A absorção acumulada de N e a produtividade de arroz com a aplicação de cama de aviário foram menores do que as com os fertilizantes químicos. A adição de cama de aviário nas lavouras de arroz por cinco anos altera as propriedades químicas do solo, melhora a fertilidade, não favorece a eficiência do uso de nitrogênio pelas plantas e promove menor produção de arroz que os fertilizantes químicos.Termos para indexação: Oryza sativa, disponibilidade de nutrientes, adubos orgânicos.

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“…Given that fertilizer was applied in the rice-cultivated fields during the prior planting season and that the fallow fields were not fertilized and irrigated for at least 5-10 years, the comparable levels of total N, P and K across both fallow and cultivated soils at the postharvest time of sampling suggests loss of nutrients in the rice-cultivated soils. Such loss of nutrients may be due to biochemical processes, such as denitrification, ammonia volatilization and clay fixation, as well as nutrient losses in water runoff, deep percolation and uptake by the rice cultivars [90][91][92]. Moreover, the observed significant reduction in ammonium (NH 4 + -N), nitrate (NH 4 + -N), and K between postharvest (PH) and pre-planting (5mR) in both Umbeluzi and Chokwe also suggest further leaching, nutrient adsorption (e.g., insoluble phosphates due to binding on clay particles, Al and Fe hydroxides/oxides) and/or oxidation of nutrients during the off-season.…”

Section: Discussionmentioning

confidence: 99%

Assessing the Impact of Rice Cultivation and Off-Season Period on Dynamics of Soil Enzyme Activities and Bacterial Communities in Two Agro-Ecological Regions of Mozambique

et al. 2021

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Soil ecosystem perturbation due to agronomic practices can negatively impact soil productivity by altering the diversity and function of soil health determinants. Currently, the influence of rice cultivation and off-season periods on the dynamics of soil health determinants is unclear. Therefore, soil enzyme activities (EAs) and bacterial community compositions in rice-cultivated fields at postharvest (PH) and after a 5-month off-season period (5mR), and fallow-fields (5-years-fallow, 5YF; 10-years-fallow, 10YF and/or one-year-fallow, 1YF) were assessed in two agroecological regions of Mozambique. EAs were mostly higher in fallow fields than in PH, with significant (p < 0.05) differences detected for β-glucosidase and acid phosphatase activities. Only β-glucosidase activity was significantly (p < 0.05) different between PH and 5mR, suggesting that β-glucosidase is responsive in the short-term. Bacterial diversity was highest in rice-cultivated soil and correlated with NO3−, NH4+ and electrical conductivity. Differentially abundant genera, such as Agromyces, Bacillus, Desulfuromonas, Gaiella, Lysobacter, Micromonospora, Norcadiodes, Rubrobacter, Solirubrobacter and Sphingomonas were mostly associated with fallow and 5mR fields, suggesting either negative effects of rice cultivation or the fallow period aided their recovery. Overall, rice cultivation and chemical parameters influenced certain EAs and shaped bacterial communities. Furthermore, the 5-month off-season period facilitates nutrient recovery and proliferation of plant-growth-promoting bacteria.

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Nitrogen Uptake by the Rice Plant and Changes in the Soil Chemical Properties in the Paddy Rice Field during Yearly Application of Anaerobically-Digested Manure for Seven Years

Cited by 10 publications

References 8 publications

Effect of the long-term application of anaerobically digested residual slurry on methane emissions in a rice paddy field

Effect of the long-term application of anaerobically digested residual slurry on methane emissions in a rice paddy field

Extended use of poultry manure as a nutrient source for flood-irrigated rice crop

Assessing the Impact of Rice Cultivation and Off-Season Period on Dynamics of Soil Enzyme Activities and Bacterial Communities in Two Agro-Ecological Regions of Mozambique

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