(a) ज्वारीच्या उत्पादनात सोलापूर जिल्ह्याचा सर्वप्रथम क्रमांक लागतो.
(b) बागायती क्षेत्रात वाढ झाल्यामुळे पुर्वी ज्वारी घेत असलेल्या क्षेत्रांमध्ये आता व्यावसायिक पिके घेण्यावर जास्त भर दिला जातो.
वरीलपैकी कोणते/कोणती विधान/विधाने बरोबर आहेत ?

The correct answer is Option C ((a) and (b)).

Key Points:
• Agriculture of Maharashtra - Jowar Cultivation:
• Verification of statements:
• Statement (a) is TRUE: Solapur district has historically held the top rank in both area under cultivation and total production of Rabi Jowar (मालदांडी ज्वारी), earning Solapur the title 'ज्वारीचे कोठार' (Granary of Jowar in Maharashtra).
• Statement (b) is TRUE: With the expansion of irrigation projects (such as the Ujani Dam on the Bhima River), traditional dryland jowar fields have progressively shifted toward lucrative cash crops like sugarcane, pomegranate, and grapes.
• Thus, both statements are factually sound.
• Key Takeaway: Solapur is Maharashtra's leading Jowar producer ('Granary of Jowar'), though irrigation has shifted acreage toward commercial cash crops.