Mineral nutrition, yield, and source–sink relationships

Kirkby, Ernest A.; Nikolić, Miroslav; White, Philip J.; Xu, Guohua

doi:10.1016/b978-0-12-819773-8.00015-0

Cited by 7 publications

(4 citation statements)

References 476 publications

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“…One function of potassium metabolism is to facilitate the efficient transport of photosynthates in the phloem by stimulating ATP production, thus supporting positive transportation (Haddad et al, 2016). The heightened ATP production facilitates the transfer of photosynthates from source organs (e.g., leaves) to sink organs (e.g., fruits), as proposed by Kirkby et al (2023). This process likely contributed to the enhanced overall performance and bulb yield observed in our experiment.…”

Section: Discussionsupporting

confidence: 61%

Exploring the influence of supplemental potassium fertilizer types and rates on garlic quality and yield

Metwally,

Yousef,

Abd El-Raheem

et al. 2024

Archives of Agriculture Sciences Journal

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Garlic farmers often seek strategies to improve yield and post-harvest storage longevity. This study investigated the impact of various supplemental potassium fertilizers on these parameters. The experiment, conducted in 2021 and 2022, utilized a randomized complete block design with seven treatments: two levels of potassium nitrate (2.5 and 5 g/L), two levels of potassium citrate (2.5 and 5 mL/L), two levels of potassium silicate (2.5 and 5 mL/L), and a control without fertilizer. The findings revealed a clear influence of supplemental potassium fertilization on several key aspects of garlic growth and quality. Applying potassium nitrate at 5 g/L consistently outperformed other treatments. Plants receiving this treatment grew taller (72.93 and 90.80 cm), boasted more leaves (9.20 and 12.03), and showcased the largest bulb diameter (5.40 and 5.21 cm) and highest number of cloves per bulb (14.60 and 14.30), ultimately translating to the highest total yield per feddan (feddan = 4200 m² = 0.420 hectares = 1.037 acres) (12.61 and 12.75 ton) in both seasons, respectively. Notably, this treatment also led to significantly higher chlorophyll content (78.67 and 73.45 SPAD unit) across both seasons, respectively, suggesting enhanced photosynthetic activity and improved plant health. Beyond these morphological features and yield benefits, the study explored the impact of supplemental potassium fertilizers on post-harvest storage quality -a crucial element for farmers aiming to minimize losses. The results were encouraging, indicating that supplemental potassium fertilization contributes to reduced post-harvest loss compared to the control. While all potassium treatments displayed positive effects, potassium silicate and potassium nitrate at 2.5 g/L offered the most significant reductions in percentage weight loss during both storage periods (one and two months after harvest). These findings highlight the importance of potassium management for optimizing garlic production and post-harvest handling, providing valuable insights for farmers and agricultural stakeholders seeking to maximize their yields and minimize losses.

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Section: Discussionsupporting

confidence: 61%

Exploring the influence of supplemental potassium fertilizer types and rates on garlic quality and yield

Metwally,

Yousef,

Abd El-Raheem

et al. 2024

Archives of Agriculture Sciences Journal

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“…Furthermore, the average cation-exchange capacity (CEC) was 8.98 cmol(+) kg −1 in Elalab and 24.88 cmol(+) kg −1 in Cafine-Cafal, with values of Na between 0.11 and 234.96 cmol(+) kg −1 . The latter is a substantial amount of sodium, potentially indicating the need for soil amendments or management practices to ensure good conditions for plant growth [71][72][73]. The notable percentage of saturation bases (SB) indicates high cation concentrations (>175.7%), which may be due to a high sodium concentration in some sites and a low CEC.…”

Section: Soil Chemical Propertiesmentioning

confidence: 99%

Moving toward the Biophysical Characterization of the Mangrove Swamp Rice Production System in Guinea Bissau: Exploring Tools to Improve Soil- and Water-Use Efficiencies

Garbanzo,

Céspedes,

Sandoval

et al. 2024

Agronomy

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The mangrove swamp rice production system (MSRPS) in West Africa faces significant challenges in soil, water, and salinity management, making rice production highly vulnerable to variations in the spatio-temporal distribution patterns of rainfall, which are exacerbated by climate change. This study’s results can provide the initial basis for co-developing strategies with farmers aiming to contribute to the biophysical characterization of the MSRPS, in particular: (i) estimate the water-harvesting efficiency (WLef) of the plots in the north and south of Guinea Bissau (GB); (ii) characterize the unevenness of the bottom of the plots, which leads to salinization spots; and (iii) create soil consistency maps to provide farmers with a tool to prioritize sites with optimal conditions for tillage. The research was conducted between 2021 and 2023 in the study site of Cafine-Cafal in the south and Elalab in the north of GB. Systematic soil sampling in a grid was designed to quantify the soil consistency and plot/ridge areas were determined. Linear models were developed to predict biophysical parameters (e.g., effective planting areas and water-logging depths) and geostatistics were used to create soil consistency maps for each study site. The results show precipitation water-harvesting efficiencies of 15% and 16% for the southern and northern regions, respectively. Furthermore, the plasticity limits of 18.6% for Elalab and 35.5% for Cafine-Cafal show the most appropriate times to start tillage in specific areas of the paddies. This study provides information on the efficient management of tillage and freshwater conservation, providing MSRPS farmers with useful tools to counteract the effects caused by salinity and rainfall variability.

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“…Plants need six major macro minerals, such as nitrogen (N), phosphorous (P), potassium (K), magnesium (Mg), sulfur (S), and calcium (Ca), and micronutrient minerals covering iron (Fe), zinc (Zn), manganese (Mn), copper (Cu), boron (B), and molybdenum (Mo) that are essential for driving plant growth and development. Nutrients act as an integral component of the plant system that plays a significant role in coordinating several physiological and developmental aspects in plants such as seed germination, root and shoot growth, photosynthesis, respiration, as well as flower development (Kirkby et al., 2023; Saleem et al., 2023). Mineral nutrients help plants yield better by supporting physiological processes, such as photosynthesis, respiration, and transpiration.…”

Section: Introductionmentioning

confidence: 99%

Mineral nutrients in plants under changing environments: A road to future food and nutrition security

et al. 2023

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Plant nutrition is an important aspect that contributes significantly to sustainable agriculture, whereas minerals enrichment in edible source implies global human health; hence, both strategies need to be bridged to ensure “One Health” strategies. Abiotic stress‐induced nutritional imbalance impairs plant growth. In this context, we discuss the molecular mechanisms related to the readjustment of nutrient pools for sustained plant growth under harsh conditions, and channeling the minerals to edible source (seeds) to address future nutritional security. This review particularly highlights interventions on (i) the physiological and molecular responses of mineral nutrients in crop plants under stressful environments; (ii) the deployment of breeding and biotechnological strategies for the optimization of nutrient acquisition, their transport, and distribution in plants under changing environments. Furthermore, the present review also infers the recent advancements in breeding and biotechnology‐based biofortification approaches for nutrient enhancement in crop plants to optimize yield and grain mineral concentrations under control and stress‐prone environments to address food and nutritional security.

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Mineral nutrition, yield, and source–sink relationships

Cited by 7 publications

References 476 publications

Exploring the influence of supplemental potassium fertilizer types and rates on garlic quality and yield

Exploring the influence of supplemental potassium fertilizer types and rates on garlic quality and yield

Moving toward the Biophysical Characterization of the Mangrove Swamp Rice Production System in Guinea Bissau: Exploring Tools to Improve Soil- and Water-Use Efficiencies

Mineral nutrients in plants under changing environments: A road to future food and nutrition security

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