What the soil tests found
8
out of 10
Soil score
GoodShort in most fields here: boron.
Too acidic in most fields here.
For most crops. How the soil score works
- soil samples, 2023-24 & 2024-25
- 21
- 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
GoodLow 5% Medium 5% High 90%
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/haHealthy soil has 280 kg/ha or more.
Compared with the wider area Place Low Medium High Here 5% 5% 90% Likabali 1% 18% 81% Lower Siang 1% 29% 71% Arunachal Pradesh 12% 74% 14% India 64% 30% 6% -
Phosphorus
GoodLow 5% Medium 71% High 24%
Almost every soil test here had enough
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/haHealthy soil has 10 kg/ha or more.
Compared with the wider area Place Low Medium High Here 5% 71% 24% Likabali 4% 59% 37% Lower Siang 4% 55% 41% Arunachal Pradesh 11% 67% 22% India 14% 41% 45% -
Potassium
OkayLow 24% Medium 43% High 33%
2 in 10 soil tests here came out low
If your field is low: add about a quarter more potash (MOP) than the usual dose.
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/haHealthy soil has 110 kg/ha or more.
Compared with the wider area Place Low Medium High Here 24% 43% 33% Likabali 19% 75% 6% Lower Siang 13% 81% 6% Arunachal Pradesh 20% 65% 15% India 14% 53% 34% -
Organic carbon
GoodLow 5% High 95%
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 Low Medium High Here 5% 0% 95% Likabali 6% 6% 89% Lower Siang 7% 11% 82% Arunachal Pradesh 18% 47% 35% India 48% 28% 23% -
pH
PoorAcidic 81% Neutral 19%
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 AlkalineMost crops do best at pH 6.5 to 7.5.
Compared with the wider area Place Acidic Neutral Alkaline Here 81% 19% 0% Likabali 80% 20% 0% Lower Siang 86% 14% 0% Arunachal Pradesh 51% 49% 0% India 12% 86% 2% -
Salt
GoodNot 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 SaltyUnder 1 dS/m is fine. Above 4 harms most crops.
Compared with the wider area Place Not salty Salty Here 100% 0% Likabali 100% 0% Lower Siang 100% 0% Arunachal Pradesh 97% 3% India 96% 4% -
Sulphur
GoodShort 15% Enough 85%
2 in 10 soil tests here came out short
What this means
Makes oil in oilseeds and protein in pulses.
Short under 10 ppm Enough 10 ppm or moreHealthy soil has 10 ppm or more.
Compared with the wider area Place Short Enough Here 15% 85% Likabali 2% 98% Lower Siang 2% 98% Arunachal Pradesh 23% 77% India 24% 76% -
Zinc
GoodShort 15% Enough 85%
2 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 moreHealthy soil has 0.6 ppm or more.
Compared with the wider area Place Short Enough Here 15% 85% Likabali 16% 84% Lower Siang 17% 83% Arunachal Pradesh 9% 91% India 35% 65% -
Iron
OkayShort 35% Enough 65%
4 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 moreHealthy soil has 4.5 ppm or more.
Compared with the wider area Place Short Enough Here 35% 65% Likabali 13% 87% Lower Siang 12% 88% Arunachal Pradesh 12% 88% India 24% 76% -
Copper
GoodShort 5% Enough 95%
Almost every soil test here had enough
What this means
Helps the crop set seed and resist disease.
Short under 0.2 ppm Enough 0.2 ppm or moreHealthy soil has 0.2 ppm or more.
Compared with the wider area Place Short Enough Here 5% 95% Likabali 7% 93% Lower Siang 8% 92% Arunachal Pradesh 5% 95% India 5% 95% -
Manganese
GoodShort 5% Enough 95%
Almost every soil test here had enough
What this means
Helps leaves make food from sunlight.
Short under 2 ppm Enough 2 ppm or moreHealthy soil has 2 ppm or more.
Compared with the wider area Place Short Enough Here 5% 95% Likabali 30% 70% Lower Siang 29% 71% Arunachal Pradesh 17% 83% India 13% 87% -
Boron
PoorShort 59% Enough 41%
6 in 10 soil tests here came out short
If your field is short: mix 4 kg of borax per acre into the soil before sowing.
What this means
Needed for flowers to set seed and fruit.
Short under 0.5 ppm Enough 0.5 ppm or moreHealthy soil has 0.5 ppm or more.
Compared with the wider area Place Short Enough Here 59% 41% Likabali 80% 20% Lower Siang 78% 22% Arunachal Pradesh 23% 77% India 45% 55%
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). 2023-24 & 2024-25. 21 samples.
Climate in Lower Siang
Rain
About 2,710 mm of rain a year
In a normal year. A dry year brings about 2,230 mm.
Temperature
Hottest in August: days about 30 °C, nights 23 °C
Coolest in January: days about 20 °C, nights 8 °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.