What the soil tests found
8
out of 10
- soil samples, 2024-25
- 5
- nutrients checked in each sample
- 9
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
-
Phosphorus
GoodHigh 100%
Most soil tests here came out high
If your field is high: you can use about a quarter less DAP than usual.
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 0% 0% 100% Tonk 0% 5% 95% Tonk 0% 5% 95% Rajasthan 4% 27% 69% India 14% 41% 45% -
Potassium
GoodHigh 100%
Most soil tests here came out high
If your field is high: you can use about a quarter less potash than usual.
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 0% 0% 100% Tonk 1% 13% 86% Tonk 1% 15% 84% Rajasthan 3% 46% 51% India 14% 53% 34% -
Organic carbon
PoorLow 100%
Almost every soil test 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 100% 0% 0% Tonk 85% 14% 1% Tonk 88% 12% 1% Rajasthan 83% 14% 3% India 48% 28% 23% -
pH
OkayNeutral 80% Alkaline 20%
2 in 10 soil tests here came out alkaline
If your field is alkaline: add compost or farmyard manure. Very alkaline land also needs gypsum; a soil lab works out how much.
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 0% 80% 20% Tonk 0% 94% 6% Tonk 0% 94% 6% Rajasthan 0% 87% 13% 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% Tonk 99% 1% Tonk 99% 1% Rajasthan 94% 6% India 96% 4% -
Zinc
OkayShort 20% Enough 80%
2 in 10 soil tests here came out short
If your field is short: mix 10 kg of zinc sulphate per acre into the soil before sowing. One dose lasts two or three seasons.
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 20% 80% Tonk 27% 73% Tonk 31% 69% Rajasthan 56% 44% India 35% 65% -
Iron
GoodEnough 100%
Almost every soil test here had enough
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 0% 100% Tonk 24% 76% Tonk 26% 74% Rajasthan 50% 50% India 24% 76% -
Copper
GoodEnough 100%
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 0% 100% Tonk 2% 98% Tonk 2% 98% Rajasthan 3% 97% India 5% 95% -
Manganese
GoodEnough 100%
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 0% 100% Tonk 2% 98% Tonk 3% 97% Rajasthan 6% 94% India 13% 87%
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. 5 samples.
Climate in Tonk
Rain
About 600 mm of rain a year
In a normal year. A dry year brings about 470 mm.
Temperature
Hottest in May: days about 41°, nights 27°
Coolest in January: days about 23°, nights 8°.
Averages for an area about 100 km across; hills and valleys can differ by several degrees.
Source: IMD gridded daily rainfall (0.25°); IMD gridded daily max/min temperature (1°).