मिट्टी में खारेपन व क्षारीयता की समस्या के समाधान हेतु किसका प्रयोग किया जाता है ? - Which is used to solve the problem of salinity and alkalinity in the soil? - Mitti Me kharepan wa Shariyataa Ki Samasya Ke Samadhaan Hetu Kiska Prayog Kiya Jata Hai ? Rajasthan GK in hindi, Soil of Rajasthan Gypsum question answers in hindi pdf Tamba questions in hindi, Know About Loha Rajasthan GK online test Rajasthan GK notes in hindi quiz book Sona