In the standard USDA Land Capability Classification framework:
There are only eight classes: Class I to Class VIII.
Class IX does not exist at all in the official classification framework.
Furthermore, Class V, VI, and VII can be put under forestry, grazing, and silvopastoral / agro-forestry systems, whereas Class IX is entirely non-existent.

Organizational structure of Indian agricultural research and governance:
The Department of Agricultural Research and Education (DARE) was established in December 1973 in the Ministry of Agriculture and Farmers Welfare, Government of India.
The Director General of the Indian Council of Agricultural Research (DG, ICAR) serves ex-officio as the Secretary to the Government of India, DARE.
The Union Minister of Agriculture serves as the President of the ICAR Society.

Blossom End Rot (BER) in tomato:
BER is a classic physiological disorder caused by localized Calcium (\(\text{Ca}^{2+}\)) deficiency in rapidly developing distal tissues of the fruit.
Calcium is immobile in the plant and travels through xylem with the transpiration stream. Under conditions of water stress, high humidity, excessive ammonium nitrogen, or erratic irrigation, insufficient calcium reaches the blossom end of fruits.
Calcium pectate is required for cell wall and membrane stability; its deficiency causes cellular breakdown and dry, sunken, black leathery spots at the blossom end of tomato fruits.