Assessing Alfalfa Productivity and Physiological Parameters: Biochar and Biocompost Versus Conventional Fertilizers with Manure and Chemical Fertilizers

El Moussaoui, Hassan; Idardare, Zaina; Bouqbis, Laila

doi:10.1007/s11270-023-06618-9

Cited by 3 publications

(1 citation statement)

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“…Similar results were found by Kammann et al [27], who reported an increase in water use efficiency only with a low biochar rate. Biochar characterized by a higher carbon content or derived from carbon-rich materials, such as wood, may have limited potential in enhancing the WUE when applied in excess, and in some instances, it may even yield negative effects [74,75].…”

Section: Discussionmentioning

confidence: 99%

Woody Biochar Rate and Water Shortage Impact on Early Growth Stages of Chenopodium quinoa Willd.

Rivelli,

Akram,

Libutti

2023

Agronomy

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The application of biochar to agricultural soils has been proven to have many advantages, including the improvement of soil water holding capacity and plant growth, particularly under limiting conditions of water supply. The response of quinoa (Chenopodium quinoa Willd.) to water shortage occurring during the vegetative growth stages is not well known. Therefore, the present study aimed to evaluate the combined effects of three wood chip biochar rates (0%, 2% and 4%) and two water regimes (100 and 50% evapotranspiration losses restitution) on the vegetative development and water status of quinoa (cultivar Titicaca). The results showed that the treatment with 2% wood chip biochar improved plant height, leaf and branch number and stem diameter during the vegetative growing cycle compared to the 0% (control) and 4% biochar treatments, which were not different from each other. At the end of the experiment, when the plants were at the flowering initiation stage, increases of 23% in leaf area, 22% in fresh biomass, 27% in main panicle length and 36% in sub-panicle number were observed. The application of woody biochar at a 4% rate, although improving the plant water status with increases of 10% in RWC and 18% in Ψ, did not enhance the vegetative development of the quinoa. The water shortage negatively affected both the growth performance and plant water status. The best growth response of quinoa was observed only when the plants were treated with a 2% biochar rate and were fully irrigated.

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Section: Discussionmentioning

confidence: 99%