हानि हासारजों जोङो बेयाव लाइफांफोरनि थाखाय गोनां साबखांहोग्रा गुदि मुवाफोर मोननायनि थाखोखौ मिथिनो हायो ।
We get to know about the availability level of the necessary nutritive elements of the plants through soil fertility .