Potato

सत्यापित डेटा

Solanum tuberosum

रबी · Punjab PK / UP India

खाद सिफारिश

N 170P₂O₅ 100K₂O 220kg/ha

Source: LfL Bayern / University of Idaho Extension (Ahmed research 2026-10-14)

मेरी ज़मीन के लिए निकालें

How to Apply Fertilizer Correctly

Practical field advice for Potato — knowing how to apply fertilizer matters as much as knowing how much.

What is the correct way to flood DAP for Potato?

Dissolve the DAP with a DAP solvent in a drum so it fully dissolves. Do NOT open the drum valve at the start of irrigation — wait until the water has covered about 25% of the plot (roughly 1–1.5 kanal in). Then open the valve. Close the drum valve about 10 minutes before you stop the water, so the last flow of water carries the dissolved fertilizer evenly to the far end of the field.

Should urea be flooded with irrigation water, or broadcast afterwards?

Do NOT flood urea. Flooding loses 40–50% of nitrogen through leaching (deep percolation) and denitrification (lost as gas). Instead, broadcast (chhatta) the urea 1–3 days after irrigation, when the soil is moist (tar-wattar condition). This gives 30%+ better absorption than flooding.

How can I distribute fertilizer evenly across the field?

Open the fertilizer drum valve only after irrigation water has already entered 1–1.5 kanal — opening it too early empties the drum before the far end is reached. If the field is not laser-leveled, divide one acre into 2–4 plots (kyare): 2 plots for heavy clay soils, 3–4 for loam, and fertigate each plot separately. Keep checking both the field and the drum during irrigation until you get a feel for the timing.

When should phosphorus and potash be applied?

Phosphorus (P₂O₅) and potash (K₂O) are best applied at sowing as a basal dose, placed in the seedbed. If you missed it at sowing, dissolve the fertilizer (use a DAP solvent for DAP) and flood it at the first or second irrigation — flooding is far more effective than broadcasting for phosphorus and potash at that stage.

बढ़ने की स्थितियां

मिट्टी: Loose, well-drained sandy loam; avoid waterlogging.
पानी: Light, frequent irrigations; stop 10 days before harvest.
बढ़ने का मौसम: Plant October; harvest January – February.
उपयुक्त क्षेत्र: Punjab PK / UP India

वृद्धि चरण और खाद

Basal · At planting

Full phosphorus + potassium + half nitrogen in ridges.

Earthing-up · ~30 days

Remaining nitrogen.

सावधान रहें

Late blightAphidsCutwormsHollow heart from uneven water

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जैविक खाद के विकल्प

अच्छी तरह सड़ी हुई गोबर की खाद, कंपोस्ट या वर्मीकम्पोस्ट Potato के लिए बुवाई से पहले मिट्टी सुधारक के रूप में इस्तेमाल की जा सकती है — ये मिट्टी की संरचना बनाते हैं और मौसम भर पोषक तत्व धीरे-धीरे छोड़ते हैं। चूँकि जैविक स्रोतों में पोषक तत्व की मात्रा अलग-अलग होती है, अपनी फसल और क्षेत्र के लिए गणना किए गए खनिज उर्वरक से सटीक पोषक ज़रूरत को पूरा करें।

इस फसल के लिए कोई फसल-विशिष्ट सत्यापित जैविक खुराक मौजूद नहीं है - उपरोक्त मार्गदर्शन सामान्य अभ्यास है, कोई मापा अनुशंसा नहीं। सटीक योजना के लिए अपनी सामग्री का प्रयोगशाला परीक्षण करवाएं।

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संदर्भ

Provincial agriculture departments / research institutes. LfL Bayern / University of Idaho Extension (Ahmed research 2026-10-14) — Punjab PK / UP India

अंतिम समीक्षा: 2026-10-01