1、Boron Toxicity and Deficiency in Agricultural Plants

Both boron deficiency and toxicity may have detrimental effects on yield of various agricultural plants. In addition to fertilization, growing varieties that are efficient in boron utilization were proposed to solve problems related to boron deficiency.

2、Boron contamination and its risk management in terrestrial and aquatic

Although B deficiency in agricultural soils has been observed, B toxicity can inhibit plant growth in soils under arid and semiarid regions. High B intake by humans can be detrimental to the stomach, liver, kidneys and brain, and eventually results in death.

3、The occurrence and correction of boron deficiency

Boron deficiency can be readily prevented and corrected by both soil and foliar applications. Most reliance is placed on refined sodium borates, but crushed ores are used both in the manufacture of boronated fertilisers and on their own.

Multiple stresses occurring with boron toxicity and deficiency in

In soil, the range between deficiency and toxicity of B is very narrow as compared to other nutrients, which makes its management in agriculture very difficult, as it depends on the soil and environmental conditions.

Boron Toxicity and Deficiency in Agricultural Plants

Boron has an extremely narrow range between deficiency and toxicity, and inadequate boron supply exhibits a detrimental effect on the yield of agricultural plants.

Role of Boron in Growth and Development of Plant: Deficiency and

Its deficiency and abundance in soil cause problems in plants. Low boron availability gives rise to inhibited leaf expansion, root elongation, and flower development. On the contrary, excess...

Role of Boron in Growth and Development of Plant: Deficiency and

Its deficiency and abundance in soil cause problems in plants. Low boron availability gives rise to inhibited leaf expansion, root elongation, and flower development. On the contrary, excess of boron reduces photosynthetic capacity, pollen germination, and pollen tube growth.

Boron in soil: The impacts on the biomass, composition and activity of

Given the lack of information on the potential impacts of boron in field conditions and its expected toxicity, the effects of boron in the soil were evaluated through a pot experiment under controlled conditions, with different doses added to the soil.

Boron toxicity in plants: understanding mechanisms and developing

Symptoms of B toxicity include reduced shoot and root growth, leaf chlorosis and necrosis, impaired photosynthesis, and disrupted pollen development. This review paper examines the current knowledge on B toxicity mechanisms, tolerance strategies, and management approaches in plants.

Boron Toxicity and Tolerance in Plants: Recent Advances and Future

Boron deficiency is found primarily in humid regions with well-drained soils or in sand soils as reported in some regions of China, Japan, and the United States (Tanaka and Fujiwara, 2008).

Causes of Boron Deficiency in Sichuan Soils

1. Natural Conditions: The climate in Sichuan is humid with abundant rainfall, leading to significant leaching of boron from the soil, which reduces its content. Additionally, the predominantly acidic soils in the region hinder boron adsorption and fixation, further decreasing its availability to plants.
2. Agricultural Practices: Sichuan’s agriculture prioritizes crop planting, creating high demand for boron fertilizers. due to a lack of scientific fertilization techniques, farmers often overuse chemical fertilizers, causing excessive boron accumulation in soils and reducing its effective utilization.
3. Poor Soil Management: Soil management in Sichuan is relatively outdated. Farmers lack awareness of soil nutrient conditions, resulting in widespread irrational fertilization. Excessive tillage and plowing in some areas also damage soil structure, disrupting boron distribution and availability.
4. Delayed Agricultural Technology Extension: The promotion of agricultural technologies in Sichuan lags behind. Farmers hold misconceptions about boron fertilizers, such as treating them as "universal solutions." Blind application leads to boron excess, exacerbating nutritional imbalances in soils.

Harmful Effects of Boron Deficiency

1. Stunted Plant Growth: Boron plays a critical role in plant metabolism, including photosynthesis, respiration, and carbohydrate synthesis. Boron deficiency causes growth retardation, yellowing leaves, reduced flowering and fruiting, and lower crop yields.
2. Increased Pest and Disease Susceptibility: Boron enhances plants’ resistance to pests and diseases. Its deficiency weakens this defense, making plants more vulnerable to infestations and spreading pathogens.
3. Soil Degradation: Long-term overuse of boron-rich fertilizers disrupts soil pH balance and leads to issues like soil compaction, poor aeration, and overall environmental deterioration.
4. Environmental Pollution: Excessive boron fertilization can contaminate groundwater systems. It may also disrupt other soil nutrients, harming ecological balance.

Boron deficiency in Sichuan soils arises from natural conditions, agricultural practices, soil management, and technological gaps. To address this, efforts should focus on soil nutrient monitoring, promoting scientific fertilization, enhancing farmer education, and accelerating agricultural technology extension to ensure sustainable agricultural development in Sichuan.