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Plant-soil interactions
Plant roots are growing in soil and plants obtain most of their water and nutrients from the soil. Hostile soil conditions can significantly lower yields and affect profitability of producers. Common soil constraints in Australia and soil salinity and alkalinity, and poor soil physical properties. Management of soil constaints is necessary to increase yield and maintain profitability.
Plant root physiology and plant cell walls
Plant cell walls are the part of plants roots in intimate contact with the soil. In particular, the anionic and cations charges found in plant cell walls play an important in how the plant perceives the soil environment and this affects uptake of nutrients by plant roots. Furthermor,e the architecture of the root system affects how plants can exploit the soil for maximise uptake of water and nutrients.
Aluminium toxicity and tolerance in plants
Aluminium toxicity is a significant problem in Australia and the rest of the world. In acid soils, dissolution of Al minerals releases trivalent Al ions which impair root growth. Consequently, water and nutrient uptake is decreased, resulting in yield losses. Understanding why Al is toxic to plant roots and management of acid soils to overcome Al toxicity is important to maintain or increase productivity.
Agroforestry
Diversification of agricultural land use use to incorporate forestry can have a number of benefit for the environment and the producer. By setting aside less productive land for forestry, land degradation can be reversed or at least minimised by reducing wind and water erosion. In addition, forestry can provide habitat for native species and increase biodiversity. Beneficial effects are lowering of watertables in areas where dryland salinity is an issue, thereby preventing land degradation, increased soil carbon sequestration, increased visual amenity and an additional income stream.
Land-disposal of waste products
Beneficial re-use of waste water and waste products such a manure and sewage can maintain or improve productivity by supplying water and nutrients to crops. Careful analysis of risks and benefits is required to evaluate the suitability of land disposal of waste products.
Plant-soil interactions
Plant roots are growing in soil and plants obtain most of their water and nutrients from the soil. Hostile soil conditions can significantly lower yields and affect profitability of producers. Common soil constraints in Australia and soil salinity and alkalinity, and poor soil physical properties. Management of soil constaints is necessary to increase yield and maintain profitability.
Plant root physiology and plant cell walls
Plant cell walls are the part of plants roots in intimate contact with the soil. In particular, the anionic and cations charges found in plant cell walls play an important in how the plant perceives the soil environment and this affects uptake of nutrients by plant roots. Furthermor,e the architecture of the root system affects how plants can exploit the soil for maximise uptake of water and nutrients.
Aluminium toxicity and tolerance in plants
Aluminium toxicity is a significant problem in Australia and the rest of the world. In acid soils, dissolution of Al minerals releases trivalent Al ions which impair root growth. Consequently, water and nutrient uptake is decreased, resulting in yield losses. Understanding why Al is toxic to plant roots and management of acid soils to overcome Al toxicity is important to maintain or increase productivity.
Agroforestry
Diversification of agricultural land use use to incorporate forestry can have a number of benefit for the environment and the producer. By setting aside less productive land for forestry, land degradation can be reversed or at least minimised by reducing wind and water erosion. In addition, forestry can provide habitat for native species and increase biodiversity. Beneficial effects are lowering of watertables in areas where dryland salinity is an issue, thereby preventing land degradation, increased soil carbon sequestration, increased visual amenity and an additional income stream.
Land-disposal of waste products
Beneficial re-use of waste water and waste products such a manure and sewage can maintain or improve productivity by supplying water and nutrients to crops. Careful analysis of risks and benefits is required to evaluate the suitability of land disposal of waste products.
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SOIL USE AND MANAGEMENTno. 1 (2023): 521-534
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