Question

different kinds of soil structure and give the significance of soil structure bin relation to plant growth​

Answer 1

Soil structure:

• Soil structure describes the arrangement or the way of soil in the soild parts of the soil and the pore space located between them.
• It is determined by individual soil granules clump bind together and aggregate resulting in the arrangement of soil pores between them.
• Soil has a major influence on water and air movement, biological activity , root growth and seedling emergence.

Types of soil structures:

           Platy

           Prismatic

           Columnar

            Blocky

            Granular

            Wedge

            Lenticular

Significance of soil structure:

• The benefits of improving  soil structure for the growth of plants, particularly in agricultural setting:
• Reduced erosion due to greater soil aggregate strength  and decreased overland flow improved root penetration and access to soil moisture and nutrients.
• Productivity from irrigated no-tillage minimum tillage soil management in horticulture usually decreases over time due to degradation of the soil structure, inhibiting root growth and water retention.
• Improving soil structure in such setting can increases yields significantly.
• The NSW department of Land and Water conservation suggests that in cropping systems, wheat yields can be increased by 10kg/ha for every extra millimetre of rain that is able to infiltrate due to soil structure.