The Effect of Alfalfa Mineral Fertilization and Times of Soil Sampling on Enzymatic Activity

Symanowicz, B.; Skorupka, Wojciech; Becher, Marcin; Jaremko, Dawid; Krasuski, Sebastian

doi:10.3390/agronomy11071335

Cited by 9 publications

(2 citation statements)

References 35 publications

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“…In addition, the application of iron powder to paddy soil also enhanced the soil N-fixing activity [ 27 ]. Iron application also significantly enhanced the soil N-fixing activity of alfalfa, because iron is necessary in the synthesis of nitrogenase [ 32 ].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Rice Yields and Critical N Losses from Paddy Soil under Different N Fertilization Rates with Iron Application

Shen

Long

Qiu

et al. 2022

IJERPH

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The application of iron powder stimulated the growth of iron-reducing bacteria as a respiratory substrate and enhanced their nitrogen (N)-fixing activity in flooded paddy soils. High N fertilization (urea) in the flooded paddy soils has caused adverse environmental impacts such as ammonia (NH3) volatilization, nitrous oxide (N2O) emissions, and nitrate (NO3−) leaching. This study aims to investigate the effects of N fertilization rates in combination with an iron amendment on rice yields and N losses from flooded paddy fields. We performed a 2-year field plot experiment with traditional rice–wheat rotation in China’s Yangtze River Delta. The investigation consisted of seven treatments, including 100%, 80%, 60%, and 0% of the conventional N (urea and commercial organic manure) fertilization rate, and 80%, 60%, and 0% of the conventional N with the iron powder (≥99% purity) amendment. The rice yields decreased with a reduction in the conventional N fertilization rate, whereas they were comparable after the iron application under the 80% and 60% conventional N rate. The critical N losses, including NH3 volatilization, N2O emissions, and NO3− and NH4+ leaching, generally decreased with a reduction in the conventional N fertilization rate. These N losses were significantly greater after the iron amendment compared with the non-amended treatments under the 80% and 60% conventional N fertilization rate in the first rice-growing season. However, it was comparable between the iron-amended and the non-amended treatments in the second season. Furthermore, NO3− leaching was the most significant N loss throughout the two rice seasons, followed by NH3 volatilization. The iron amendment significantly increased soil Fe2+ content compared with the non-amended treatments irrespective of N fertilization, suggesting the reduction of amended iron by iron-reducing bacteria and their simultaneous N fixation. A combination of the iron application with 60–80% of the conventional N fertilization rate could maintain rice yields similar to the conventional N fertilization rate while reducing the critical N losses in the flooded paddy field tested in this study. Our study leads to the establishment of novel and practical rice cultivation, which is a step towards the development of green agriculture.

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Section: Introductionmentioning

confidence: 99%

Investigation of Rice Yields and Critical N Losses from Paddy Soil under Different N Fertilization Rates with Iron Application

Shen

Long

Qiu

et al. 2022

IJERPH

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“…A strong relationship between soil fertility and the interaction between plants/microbes and soil has been reported in the literature, especially using different indicators of soil health and/or some soil fertility indices such as biochemical index of soil fertility (Kucharski et al, 2009) [126]. This index could be calculated from the soil enzyme activities (e.g., nitrogenase, urease, dehydrogenases, alkaline and acid phosphatase) and depends on cultivated plant species, soil characterization, and the time of soil sampling (Symanowicz et al, 2021 [127]).…”

Section: Soil-plant-microbe Interactionsmentioning

confidence: 99%

Nano-Restoration for Sustaining Soil Fertility: A Pictorial and Diagrammatic Review Article

El-Ramady

Brevik

Fawzy

et al. 2022

Plants

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Soil is a real treasure that humans cannot live without. Therefore, it is very important to sustain and conserve soils to guarantee food, fiber, fuel, and other human necessities. Healthy or high-quality soils that include adequate fertility, diverse ecosystems, and good physical properties are important to allow soil to produce healthy food in support of human health. When a soil suffers from degradation, the soil’s productivity decreases. Soil restoration refers to the reversal of degradational processes. This study is a pictorial review on the nano-restoration of soil to return its fertility. Restoring soil fertility for zero hunger and restoration of degraded soils are also discussed. Sustainable production of nanoparticles using plants and microbes is part of the process of soil nano-restoration. The nexus of nanoparticle–plant–microbe (NPM) is a crucial issue for soil fertility. This nexus itself has several internal interactions or relationships, which control the bioavailability of nutrients, agrochemicals, or pollutants for cultivated plants. The NPM nexus is also controlled by many factors that are related to soil fertility and its restoration. This is the first photographic review on nano-restoration to return and sustain soil fertility. However, several additional open questions need to be answered and will be discussed in this work.

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Evaluation of Synthesized Nanoscale Fe Carriers for Enhanced Wheat Crop Nutrition in a Typic Ustifluvents

Rokana,

Mandal,

Singh

et al. 2024

BioNanoSci.

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The Effect of Alfalfa Mineral Fertilization and Times of Soil Sampling on Enzymatic Activity

Cited by 9 publications

References 35 publications

Investigation of Rice Yields and Critical N Losses from Paddy Soil under Different N Fertilization Rates with Iron Application

Investigation of Rice Yields and Critical N Losses from Paddy Soil under Different N Fertilization Rates with Iron Application

Nano-Restoration for Sustaining Soil Fertility: A Pictorial and Diagrammatic Review Article

Evaluation of Synthesized Nanoscale Fe Carriers for Enhanced Wheat Crop Nutrition in a Typic Ustifluvents

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