What the soil tests found
6
out of 10
Soil score
OkayShort in most fields here: potassium and manganese.
Too acidic in most fields here.
Not in the score: zinc.
For most crops. How the soil score works
- soil samples, 2024-25
- 41
- 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
-
Okay
Nitrogen
From 41 soil tests
Low 46% Medium 46% High 7%
5 in 10 soil tests here came out low
If your field is low: add about a quarter more urea than the usual dose, in two or three splits. A pulse crop in rotation also adds nitrogen.
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 46% 46% 7% Roing 17% 82% 1% Lower Dibang Valley 18% 81% 1% Arunachal Pradesh 16% 70% 15% India 65% 29% 6% -
Okay
Phosphorus
From 41 soil tests
Low 37% High 63%
4 in 10 soil tests here came out low
If your field is low: add about a quarter more DAP or single super phosphate than the usual dose, at sowing.
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 37% 0% 63% Roing 59% 12% 30% Lower Dibang Valley 65% 9% 27% Arunachal Pradesh 14% 58% 28% India 13% 41% 45% -
Poor
Potassium
From 41 soil tests
Low 71% Medium 27% High 2%
7 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 71% 27% 2% Roing 50% 42% 8% Lower Dibang Valley 46% 39% 15% Arunachal Pradesh 25% 56% 19% India 14% 53% 33% -
Okay
Organic carbon
From 41 soil tests
Low 46% Medium 29% High 24%
5 in 10 soil tests here came out low
If your field is low: add 4 tonnes of compost or farmyard manure per acre before sowing, and plough crop leftovers back in instead of burning them.
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 46% 29% 24% Roing 20% 49% 30% Lower Dibang Valley 27% 49% 24% Arunachal Pradesh 18% 46% 36% India 49% 28% 23% -
Poor
pH
From 41 soil tests
Acidic 71% Neutral 29%
7 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 AlkalineIn 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 Acidic Neutral Alkaline Here 71% 29% 0% Roing 58% 42% 0% Lower Dibang Valley 64% 36% 0% Arunachal Pradesh 51% 49% 0% India 11% 86% 2% -
Good
Salt
From 41 soil tests
Not salty 83% Salty 17%
2 in 10 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. Between 1 and 4, only crops that can't take salt lose yield. Above 4 harms most crops.
Compared with the wider area Place Not salty Salty Here 83% 17% Roing 91% 9% Lower Dibang Valley 93% 7% Arunachal Pradesh 97% 3% India 96% 4% -
Okay
Sulphur
From 40 soil tests
Short 43% Enough 57%
4 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 moreHealthy soil has 10 ppm or more.
Compared with the wider area Place Short Enough Here 43% 57% Roing 41% 59% Lower Dibang Valley 40% 60% Arunachal Pradesh 18% 82% India 24% 76% -
Okay
Iron
From 38 soil tests
Short 34% Enough 66%
3 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 34% 66% Roing 18% 82% Lower Dibang Valley 18% 82% Arunachal Pradesh 7% 93% India 24% 76% -
Good
Copper
From 41 soil tests
Short 20% Enough 80%
2 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 moreHealthy soil has 0.2 ppm or more.
Compared with the wider area Place Short Enough Here 20% 80% Roing 18% 82% Lower Dibang Valley 24% 76% Arunachal Pradesh 5% 95% India 5% 95% -
Poor
Manganese
From 41 soil tests
Short 63% Enough 37%
6 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 moreHealthy soil has 2 ppm or more.
Compared with the wider area Place Short Enough Here 63% 37% Roing 71% 29% Lower Dibang Valley 76% 24% Arunachal Pradesh 17% 83% India 12% 88% -
Good
Boron
From 38 soil tests
Short 16% Enough 84%
2 in 10 soil tests here came out short
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 16% 84% Roing 21% 79% Lower Dibang Valley 21% 79% Arunachal Pradesh 24% 76% India 44% 56%
Too few tests here to judge zinc (26 tests), out of 41 soil samples.
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. 41 samples.
Climate in Lower Dibang Valley
Rain
About 2,520 mm of rain a year
In a normal year. A dry year brings about 2,070 mm.
Temperature
Hottest in August: days about 29 °C, nights 21 °C
Coolest in January: days about 18 °C, nights 6 °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.