Pick out the wrong statement.$?

• A. Loamy soil is the best soil for vigorous plant growth, while the clayey soil is solid and hence the plant roots penetrate with difficulty
• B. Large excess use of nitrogenous fertiliser in land causes the problem of diarrhoea and cyanosis
• C. Application of large excess of potassic fertiliser in soil increases the valuable carotene in fruits and vegetables
• D. Cereal crops grown on alkaline soil absorb higher amount of flourides thereby spreading flourosis