Rigong

Village soil report

Most soil here is short of manganese.

What the soil tests found

9

out of 10

Soil score

Good

Short in most fields here: manganese.

Too acidic in most fields here.

For most crops. How the soil score works

soil samples, 2024-25
13
nutrients checked
12

This shows what soil in this area tends to be like. Your own field can be different. Get it tested at a soil testing lab before deciding.

Nutrient by nutrient

  • Nitrogen

    Good

    Medium 8% High 92%

    Most soil tests here came out high

    If your field is high: you can use about a quarter less urea than usual.

    What this means

    Grows leaves and stems. Short soil gives pale, yellow leaves.

    Low under 280 kg/ha Medium 280–560 kg/ha High over 560 kg/ha

    Healthy soil has 280 kg/ha or more.

    Compared with the wider area
    Place LowMediumHigh
    Here 0% 8% 92%
    Kaying 1% 23% 76%
    Siang 0% 24% 75%
    Arunachal Pradesh 12% 74% 14%
    India 64% 30% 6%
  • Phosphorus

    Good

    Low 8% Medium 69% High 23%

    1 in 10 soil tests here came out low

    What this means

    Builds roots and helps the crop flower and fill grain.

    Low under 10 kg/ha Medium 10–25 kg/ha High over 25 kg/ha

    Healthy soil has 10 kg/ha or more.

    Compared with the wider area
    Place LowMediumHigh
    Here 8% 69% 23%
    Kaying 2% 52% 47%
    Siang 3% 46% 52%
    Arunachal Pradesh 11% 67% 22%
    India 14% 41% 45%
  • Potassium

    Good

    Low 15% Medium 54% High 31%

    2 in 10 soil tests here came out low

    What this means

    Fills grain and fruit, and helps crops stand drought and disease.

    Low under 110 kg/ha Medium 110–280 kg/ha High over 280 kg/ha

    Healthy soil has 110 kg/ha or more.

    Compared with the wider area
    Place LowMediumHigh
    Here 15% 54% 31%
    Kaying 8% 84% 8%
    Siang 9% 81% 10%
    Arunachal Pradesh 20% 65% 15%
    India 14% 53% 34%
  • Organic carbon

    Good

    High 100%

    Most soil tests here came out high

    What this means

    Shows how much organic matter the soil has. It keeps soil loose, holds water and feeds the crop slowly.

    Low under 0.5% Medium 0.5–0.75% High over 0.75%

    Healthy soil has 0.5% or more.

    Compared with the wider area
    Place LowMediumHigh
    Here 0% 0% 100%
    Kaying 6% 8% 86%
    Siang 5% 8% 87%
    Arunachal Pradesh 18% 47% 35%
    India 48% 28% 23%
  • pH

    Poor

    Acidic 77% Neutral 23%

    8 in 10 soil tests here came out acidic

    If your field is acidic: add agricultural lime before sowing. A soil lab works out how much your field needs.

    What this means

    How sour (acidic) or alkaline the soil is. It decides which nutrients roots can take up.

    Acidic Neutral Alkaline

    In these tests, neutral means about pH 6 to 8, which suits most crops; acidic is below about 6 and alkaline above about 8.

    Compared with the wider area
    Place AcidicNeutralAlkaline
    Here 77% 23% 0%
    Kaying 79% 21% 0%
    Siang 82% 18% 0%
    Arunachal Pradesh 51% 49% 0%
    India 12% 86% 2%
  • Salt

    Good

    Not salty 100%

    Almost no soil tests here came out salty

    What this means

    Salt in the soil, shown as EC on the card. Salt makes it hard for roots to drink.

    Not salty Salty

    Under 1 dS/m is fine. Above 4 harms most crops.

    Compared with the wider area
    Place Not saltySalty
    Here 100% 0%
    Kaying 100% 0%
    Siang 100% 0%
    Arunachal Pradesh 97% 3%
    India 96% 4%
  • Sulphur

    Okay

    Short 31% Enough 69%

    3 in 10 soil tests here came out short

    If your field is short: use single super phosphate instead of DAP, or add about 100 kg of gypsum per acre before sowing.

    What this means

    Makes oil in oilseeds and protein in pulses.

    Short under 10 ppm Enough 10 ppm or more

    Healthy soil has 10 ppm or more.

    Compared with the wider area
    Place ShortEnough
    Here 31% 69%
    Kaying 2% 98%
    Siang 3% 97%
    Arunachal Pradesh 23% 77%
    India 24% 76%
  • Zinc

    Good

    Short 8% Enough 92%

    1 in 10 soil tests here came out short

    What this means

    Needed for growth and healthy leaves. Rice and wheat often run short.

    Short under 0.6 ppm Enough 0.6 ppm or more

    Healthy soil has 0.6 ppm or more.

    Compared with the wider area
    Place ShortEnough
    Here 8% 92%
    Kaying 10% 90%
    Siang 12% 88%
    Arunachal Pradesh 9% 91%
    India 35% 65%
  • Iron

    Okay

    Short 46% Enough 54%

    5 in 10 soil tests here came out short

    If your field is short: spray ferrous sulphate, 5 g per litre of water, when young leaves turn yellow.

    What this means

    Keeps young leaves green.

    Short under 4.5 ppm Enough 4.5 ppm or more

    Healthy soil has 4.5 ppm or more.

    Compared with the wider area
    Place ShortEnough
    Here 46% 54%
    Kaying 19% 81%
    Siang 14% 86%
    Arunachal Pradesh 12% 88%
    India 24% 76%
  • Copper

    Good

    Short 8% Enough 92%

    1 in 10 soil tests here came out short

    What this means

    Helps the crop set seed and resist disease.

    Short under 0.2 ppm Enough 0.2 ppm or more

    Healthy soil has 0.2 ppm or more.

    Compared with the wider area
    Place ShortEnough
    Here 8% 92%
    Kaying 8% 92%
    Siang 8% 92%
    Arunachal Pradesh 5% 95%
    India 5% 95%
  • Manganese

    Poor

    Short 54% Enough 46%

    5 in 10 soil tests here came out short

    If your field is short: spray manganese sulphate, 5 g per litre of water, on the young crop.

    What this means

    Helps leaves make food from sunlight.

    Short under 2 ppm Enough 2 ppm or more

    Healthy soil has 2 ppm or more.

    Compared with the wider area
    Place ShortEnough
    Here 54% 46%
    Kaying 35% 65%
    Siang 32% 68%
    Arunachal Pradesh 17% 83%
    India 13% 87%

Too few tests here to judge boron (1 test).

Fixes are the usual advice. Your Soil Health Card or nearest Krishi Vigyan Kendra gives the exact dose for your field.

Source: Soil Health Card – soil nutrient analysis (Ministry of Agriculture & Farmers Welfare). 2024-25. 13 samples.

Climate in Siang

Rain

About 2,750 mm of rain a year

In a normal year. A dry year brings about 2,340 mm.

Temperature

Hottest in August: days about 29 °C, nights 22 °C

Coolest in January: days about 18 °C, nights 7 °C.

Typical of the district's villages; a farm much higher or lower can be a few degrees cooler or warmer.

Source: IMD gridded daily rainfall (0.25°); IMD gridded daily max/min temperature (1°); TerraClimate 1991–2020 temperature normals (about 4 km), where each district's villages are.