தலையங்கம்
A Photosynthesis-absorbing Chemical Compound Found in Plants
வர்ணனை
Soil Structure is Influenced by Various Elements
Soil Microorganisms have a Favourable Influence
குறுகிய தொடர்பு
Irrigating with Salty Water Causes Salinity in the Soil
Soil Production is Influenced by Human Factors