Sukhvir, there is no doubt about the pivotal impact of soil texture on the nutrient uptake by the plants , more so when available water content approaches towards wilting point . In a way , soil texture determines available water content , a soil can keep , depending upon which dissolved nutrients in soil solution determines the nutrients availability and consequently the uptake.
Soil texture refers to the relative proportion of sand, silt and clay in the soil. Clayey soils have greater nutrient holding capacity than the sandy soil. Please check the following links and the pdf attachment for answer to your query.
The effect of texture alone on nutrient uptake is inconclusive. Within a specific texture, soil organic matter may markedly affect nutrient availability, transformation as well as soil structure (affecting water retention/movement, and root growth), and finally uptake by crops. Thus effects of texture and structure together make some sense on nutrient uptake.
Arvind Singh ji is correct that the sand, silt, and clay contents determine a measurement of soil texture.
Sand being the largest particle size is notably none retentive excellent for aeration and drainage notable poor in nutrient and water holding capacity.
On the other extreme fine particle clay is notably retentive but poor for aeration and drainage. The ability to have loams which are mixture of all three particle sizes give the best results for plant growth since aeration retention and drainage are all achieved.
Notably lacking in this physical analysis of soil is the importance of soil organic matter. In fact it can be critical to nutrient interchange and serves as a habitat and substrate for vital microbial activity which catalyzes the large part of biochemical processes of the soil environment.
Water is the most limiting nutrient in our global food system. While 5% soil organic matter soil can retain over twice its weight in water and 1% soil organic soil can retain less 30% of its weight in water. When we return soils to their original soil organic matter the issues of productivity and drought are mitigated. The soil constitutes the largest reservoir of Carbon and the recharging of its capacity will be important for mitigating current over enrichment of our atmosphere with Carbon dioxide, methane, and Nitrous oxide.
Sukhvir, there is no doubt about the pivotal impact of soil texture on the nutrient uptake by the plants , more so when available water content approaches towards wilting point . In a way , soil texture determines available water content , a soil can keep , depending upon which dissolved nutrients in soil solution determines the nutrients availability and consequently the uptake.