Agriculture · Nursery Management
उर्वरक प्रयोग करने पर pH में अचानक होने वाले परिवर्तनों से बचने के लिए पौधों की नर्सरी के सिंचाई जल में बाइकार्बोनेट का अनुशंसित स्तर क्या है?
- 160-100 ppm✓
- 2200-250 ppm
- 36-10 ppm
- 420-25 ppm
सही उत्तर देखें
60-100 ppm
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