Localized application of sewage sludge improved plant nitrogen and phosphorus uptake by rhizobox‐grown spring wheat

Wang, Yaosheng; Jensen, Lars Stoumann; Magid, Jakob

doi:10.1002/jpln.201600153

Cited by 12 publications

(3 citation statements)

References 27 publications

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“…As mudas de aroeira costumam responder bem à adubação orgânica independente do resíduo orgânico utilizado [14]. Além disso, a utilização de lodo de esgoto na composição do substrato está relacionada com o favorecimento do crescimento vegetal, por aumentar a disponibilidade de nutrientes, principalmente de fósforo e nitrogênio [20].…”

Section: Discussionunclassified

Utilização do lodo de esgoto na produção de mudas de Schinus terebinthifolius Raddi (Anacardiaceae)

et al. 2019

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A necessidade da destinação correta do lodo de esgoto doméstico vem atraindo pesquisas para sua utilização como componente de substrato para mudas arbóreas. Uma das características que permitem essa utilização é a sua composição rica em matéria orgânica e elementos minerais essenciais. Objetivou-se avaliar a viabilidade da utilização de diferentes proporções de lodo de esgoto doméstico na composição do substrato para aroeira e sua influência no crescimento das mudas. A aroeira foi cultivada durante 180 dias em diferentes substratos: T1- 100% Terra Vegetal (T); T2- 100% Sedimento Arenoso (A); T3- 20% Lodo de Esgoto (LE) + 80% A; T4- 60% LE + 40% A; e T5- 100% LE. As variáveis de crescimento foram analisadas mensalmente, enquanto a eficiência do fotossistema II (Fv/Fm) a cada 60 dias. Ao final do experimento foram determinadas as concentrações de carboidratos, proteínas, clorofila total, além da razão entre a biomassa de raiz e da parte aérea. Plantas cultivadas em 100% A apresentaram menores valores para as características de crescimento e bioquímicas avaliadas. Nas proporções de 20% e 60% LE, as plantas alcançaram maior altura, diâmetro do caule e número de folhas, assim como elevados teores de açúcares e clorofila. Entretanto, na concentração de 100% LE, aos 180 dias, as plantas apresentaram redução em altura e número de folhas. Apesar disso, o lodo de esgoto doméstico demonstrou ser viável para composição de substrato para mudas de aroeira em proporções que podem variar desde 20% até 100%.

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Section: Discussionunclassified

Utilização do lodo de esgoto na produção de mudas de Schinus terebinthifolius Raddi (Anacardiaceae)

et al. 2019

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“…The side of each large pot was then covered with aluminium foil to provide shade. While ultrapure water was added two or three times a week to maintain a water‐holding capacity at 60% in the soil (Kong et al., 2013; Wang, Jensen, et al., 2016), the seedlings were thinned to one plant per pot within one week of germination. The plants were grown for 28 days at a controlled temperature (25°C) with a 14‐h photoperiod using a 40‐W horticultural lamp.…”

Section: Methodsmentioning

confidence: 99%

“…Notably, the partial distribution of organic matter can also trigger root structure alterations. Wang, Jensen, et al (2016) reported that the localized application of sewage sludge compost caused a high root development, enabling the efficient utilization of phosphorus and nitrogen derived from the compost. These findings suggest that root responses differ depending on the partial distribution of fertilizer in the combined application of animal manure compost.…”

Section: Introductionmentioning

confidence: 99%

Root response and phosphorus acquisition under partial distribution of phosphorus and water‐soluble organic matter

Takahashi,

Katoh

2024

Soil Use and Management

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Understanding how phosphorus and water‐soluble organic matter (WSOM) from animal manure compost contribute to root development is essential for enhancing phosphorus utilization efficiency under their combined application. This study aims to determine mechanisms underlying root responses and phosphorus acquisition based on the partially varying available phosphorus levels in root zone soil following WSOM. The plant growth test was performed using a specifically designed pot where the root elongation was guided into the soil of different root compartments with either phosphorus combined with WSOM or single phosphorus or WSOM. The results revealed high levels of available phosphorus in the root zone soil of individual plants in the presence of WSOM induced small root weight. Phosphorus concentrations in the root exhibited a negative correlation with root weight. Improved root structure development even in the presence of WSOM induced to increase uptake of phosphorus and other nutrients in the plant. Furthermore, a positive linear relationship was observed between nutrient uptake and aboveground dry weight. These findings provide pioneering experimental evidence demonstrating that root development varies to some extent depending on the level of available phosphorus induced by the combined application of phosphorus and WSOM, even within the root zone soil of individual plants. Given that plant growth varied based on partial root development even when phosphorus and WSOM were combined, this study suggests that implementing appropriate phosphorus fertilizer application while considering the augmented availability of phosphorus via the combined application of animal manure compost can promote root development and nutrient uptake, resulting in improved plant growth.

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Phenological stages of wheat modulate effects of phosphorus fertilization in plant-soil microbial interactions

García-Díaz,

Siles,

Moreno

et al. 2024

Plant Soil

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Aims Future phosphorus (P) fertilizer availability faces challenges due to limited phosphate rock mines and strict quality regulations regarding Cd contents in phosphate rock. In this study, conventional fertilization was partially substituted with meat bone meal (MBM), sludge (S), and the organo-mineral combination of S plus MBM (SMBM), in a wheat agroecosystem. Methods We investigated the impact of fertilization treatments and crop phenological stages on P availability, crop yield, and soil microbial responses. Analysis included enzyme activities, microbial biomass, and the composition of bacterial and fungal communities using metabarcoding. Additionally, we estimated functional genes related to the P cycle through qPCR. Crop yield and nutrient content in plants and soil were also determined. Results Replacing traditional fertilization with MBM and SMBM maintained crop yield at levels equivalent to conventional fertilization. S and SMBM produced 70% and 40% (respectively) more bioavailable P compared to conventional treatment (Trad). Significant differences between treatments in soil microbial biomass were observed in the flag leaf stage. S increased in 20% total soil microbial biomass compared to Trad. Crop phenology had a stronger impact on bacterial and fungal communities than fertilization treatments. The use of S enhanced microbial biomass and activity. Yield in both MBM and SMBM plots exhibited no statistically significant differences compared to traditional fertilization. Conclusion Organo-mineral fertilization emerges as a sustainable strategy for maintaining crop production while improving soil functionality. Our findings emphasize the primary influence of crop phenology on shaping soil microbial communities and influencing microbial biomass and functionality.

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Localized application of sewage sludge improved plant nitrogen and phosphorus uptake by rhizobox‐grown spring wheat

Cited by 12 publications

References 27 publications

Utilização do lodo de esgoto na produção de mudas de Schinus terebinthifolius Raddi (Anacardiaceae)

Utilização do lodo de esgoto na produção de mudas de Schinus terebinthifolius Raddi (Anacardiaceae)

Root response and phosphorus acquisition under partial distribution of phosphorus and water‐soluble organic matter

Phenological stages of wheat modulate effects of phosphorus fertilization in plant-soil microbial interactions

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