किसी भी फसल के लिए उर्वरक की गणना कैसे करें

 उर्वरक का प्रयोग अनुमान लगाने जैसा नहीं है - यह एक विज्ञान है! उपज को अधिकतम और बर्बादी को कम से कम करने के लिए, आपको निम्नलिखित के आधार पर सही मात्रा की गणना करनी होगी:


✅ फसल पोषक तत्वों की आवश्यकता

✅ लक्षित उपज

✅ मृदा परीक्षण रिपोर्ट

✅ उर्वरक में पोषक तत्वों की मात्रा


🔍 सरल सूत्र इस प्रकार है:


आवश्यक उर्वरक (किग्रा/हेक्टेयर) = (अनुशंसित पोषक तत्व मात्रा / उर्वरक में पोषक तत्व का %) × 100


आइए इसे गेहूँ (प्रति हेक्टेयर) के उदाहरण से समझते हैं:


💡 अनुशंसित मात्रा:

• नाइट्रोजन (N): 120 किग्रा

• फॉस्फोरस (P₂O₅): 60 किग्रा

• पोटेशियम (K₂O): 40 किग्रा


💼 उपयोग:

• यूरिया (46% N)

• DAP (18% N, 46% P₂O₅)

• MOP (60% K₂O)


🔸 P₂O₅ के लिए DAP:

60 / 46 × 100 = 130 किग्रा DAP

(नोट: इससे 23.4 किग्रा N भी प्राप्त होता है)


🔸 शेष N के लिए यूरिया:

(120 - 23.4) / 46 × 100 = 209 किग्रा यूरिया


🔸 K₂O के लिए MOP:

40 / 60 × 100 = 67 किग्रा MOP


📌 अंतिम उर्वरक आवश्यकता (प्रति हेक्टेयर):

✔️ यूरिया: 209 किग्रा

✔️ DAP: 130 किग्रा

✔️ MOP: 67 किग्रा


📢 सफलता के लिए सुझाव:

🔁 नाइट्रोजन को 2-3 भागों में बाँटें

🌱 कार्बनिक पदार्थ (FYM, कम्पोस्ट)

🧪 हर मौसम में मिट्टी की जाँच करें

💧 पोषक तत्वों के अवशोषण के लिए उचित सिंचाई सुनिश्चित करें

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