Category: Agronomy Tables
Leguminous Green Manuring Crops
By Agritests |
20 Jun, 2026
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Leguminous Green Manuring Crops S. No. Crop Botanical Name 1 Sunnhemp Crotalaria juncea 2 Daincha Sesbania aculeata 3 Sesbania Sesbania speciosa 4 Indigo Indigofera tinctoria 5 Wild Indigo Tephrosia purpurea 6 Cowpea Vigna unguiculata / V. sinensis 7 Green gram (Mung) Phaseolus aureus / Vigna radiata 8 Black gram (Urd) Phaseolus mungo / Vigna mungo […]
Quality Parameters for Irrigation Water
By Agritests |
20 Jun, 2026
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Classification of Irrigation Water Based on EC, RSC & SAR Class EC (dS m-1) RSC (meq L-1) SAR Good < 2.0 < 2.5 < 10 Normal 2 – 4 < 2.5 < 10 Sodic > 4 > 2.5 > 10 Poor > 4 > 2.5 > 10
Classification of Watersheds (Based on Area)
By Agritests |
20 Jun, 2026
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💧 Classification of Watersheds (Based on Area) S. No. Type of Watershed Area Covered (ha) 1 Mini Watershed 10 – 100 2 Micro Watershed 100 – 1,000 3 Milli Watershed 1,000 – 10,000 4 Sub-Macro Watershed 10,000 – 50,000 5 Macro Watershed > 50,000
Water Requirement of Different Crops
By Agritests |
20 Jun, 2026
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💧 Water Requirement of Different Crops S. No. Crop Water Requirement (mm) Water Requirement (cm) 1 Rice 1200 – 2500 120 – 250 2 Wheat 450 – 650 45 – 65 3 Sorghum 450 – 650 45 – 65 4 Maize 500 – 800 50 – 80 5 Sugarcane 1500 – 2500 150 – 250 […]
Measurement of Irrigation Water
By Agritests |
20 Jun, 2026
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Measurement of Irrigation Water S. No. Unit Equivalent Volume 1 1 Cusec 28.3 litres per second 2 1 Cumec 1,000 litres per second 3 1 ha-mm 10,000 litres 4 1 ha-cm 100,000 litres 5 1 ha-m 10,000,000 litres
Nutrient Content of Green Manure Crops
By Agritests |
20 Jun, 2026
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Nutrient Content of Green Manure Crops S. No. Crop Name Nitrogen (N) % Phosphorus (P) % Potassium (K) % 1 Sunhemp 0.89 0.12 0.51 2 Daincha 0.68 0.13 0.40 3 Cowpea 0.71 0.15 0.58 4 Green gram 0.82 0.18 0.52 5 Black gram 0.82 0.18 0.52 6 Horse gram 0.91 0.18 0.65 7 Glyricidia 0.68 […]
Classification of Irrigation Water Quality (Na, Cl & SAR)
By Agritests |
20 Jun, 2026
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Classification of Irrigation Water Quality (Na, Cl & SAR) Quality of Water Na (ppm) Cl (me/L) SAR Excellent < 30 < 2.5 < 1.0 Good 30 – 60 2.5 – 5.0 1.0 – 2.0 Fair 60 – 75 5.0 – 7.5 2.0 – 4.0 Poor 75 – 80 7.5 – 10.0 4.0 – 8.0 Very […]
Classification of Irrigation Water Quality (EC & amp; pH)
By Agritests |
20 Jun, 2026
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Classification of Irrigation Water Quality (Based on EC & pH) Quality of Water EC (mmhos/cm) pH Excellent 0.5 6.5 – 7.5 Good 0.5 – 1.5 7.5 – 8.0 Fair 1.5 – 3.0 8.0 – 8.5 Poor 3.0 – 5.0 8.5 – 9.0 Very Poor 5.0 – 6.0 9.0 – 10.0 Unsuitable > 6.0 > 10.0
Quality of Ground Waters for Irrigation
By Agritests |
20 Jun, 2026
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Quality of Ground Waters for Irrigation Water Quality EC (dS/m) SAR (mmol/L) RSC (me/L) Good water < 2 < 10 < 2.5 Marginally saline water 2 – 4 < 10 < 2.5 Saline water > 4 < 10 < 2.5 High SAR saline water > 4 > 10 < 2.5 Marginally alkali water < 4 […]
Plants Used as Nutrient Deficiency Indicators
By Agritests |
20 Jun, 2026
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🌿 Plants Used as Nutrient Deficiency Indicators S. No. Nutrient Indicator Plant(s) 1 Nitrogen Cauliflower, Cabbage 2 Phosphorus Mustard, Rapeseed 3 Potassium Potato 4 Calcium Cauliflower, Cabbage 5 Boron Sunflower, Sugar beet 6 Sodium Sugar beet, Turnip 7 Chlorine Lettuce 8 Iron (Ferrous) Sorghum, Citrus, Barley 9 Copper Wheat 10 Magnesium Potato, Cauliflower, Sugar beet […]