Guntur

• Nitrogen

  From 21,055 soil tests

  Poor
  Low 82% Medium 18% High 1%

  8 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/ha

  Healthy soil has 280 kg/ha or more.

  Compared with the wider area

  Place	Low	Medium	High
  Here	82%	18%	1%
  Andhra Pradesh	73%	24%	3%
  India	65%	29%	6%

• Phosphorus

  From 21,037 soil tests

  Good
  Low 5% Medium 13% High 82%

  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/ha

  Healthy soil has 10 kg/ha or more.

  Compared with the wider area

  Place	Low	Medium	High
  Here	5%	13%	82%
  Andhra Pradesh	16%	32%	52%
  India	13%	41%	45%

• Potassium

  From 21,062 soil tests

  Good
  Low 4% Medium 11% High 85%

  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/ha

  Healthy soil has 110 kg/ha or more.

  Compared with the wider area

  Place	Low	Medium	High
  Here	4%	11%	85%
  Andhra Pradesh	10%	30%	60%
  India	14%	53%	33%

• Organic carbon

  From 21,035 soil tests

  Okay
  Low 25% Medium 19% High 56%

  3 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	25%	19%	56%
  Andhra Pradesh	57%	24%	19%
  India	49%	28%	23%

• pH

  From 21,037 soil tests

  Good
  Neutral 95% Alkaline 5%

  1 in 10 soil tests here came out alkaline

  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	Acidic	Neutral	Alkaline
  Here	0%	95%	5%
  Andhra Pradesh	1%	93%	6%
  India	11%	86%	2%

• Salt

  From 20,973 soil tests

  Good
  Not salty 94% Salty 6%

  1 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 Salty

  Under 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	94%	6%
  Andhra Pradesh	93%	7%
  India	96%	4%

• Sulphur

  From 21,065 soil tests

  Good
  Short 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 more

  Healthy soil has 10 ppm or more.

  Compared with the wider area

  Place	Short	Enough
  Here	15%	85%
  Andhra Pradesh	15%	85%
  India	24%	76%

• Zinc

  From 20,996 soil tests

  Okay
  Short 32% Enough 68%

  3 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 more

  Healthy soil has 0.6 ppm or more.

  Compared with the wider area

  Place	Short	Enough
  Here	32%	68%
  Andhra Pradesh	38%	62%
  India	35%	65%

• Iron

  From 20,921 soil tests

  Okay
  Short 43% Enough 57%

  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 more

  Healthy soil has 4.5 ppm or more.

  Compared with the wider area

  Place	Short	Enough
  Here	43%	57%
  Andhra Pradesh	29%	71%
  India	24%	76%

• Copper

  From 20,955 soil tests

  Good
  Short 3% Enough 97%

  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 more

  Healthy soil has 0.2 ppm or more.

  Compared with the wider area

  Place	Short	Enough
  Here	3%	97%
  Andhra Pradesh	6%	94%
  India	5%	95%

• Manganese

  From 21,003 soil tests

  Okay
  Short 23% Enough 77%

  2 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	Short	Enough
  Here	23%	77%
  Andhra Pradesh	12%	88%
  India	12%	88%

• Boron

  From 21,062 soil tests

  Good
  Short 3% Enough 97%

  Almost every soil test here had enough

  What this means

  Needed for flowers to set seed and fruit.

  Short under 0.5 ppm Enough 0.5 ppm or more

  Healthy soil has 0.5 ppm or more.

  Compared with the wider area

  Place	Short	Enough
  Here	3%	97%
  Andhra Pradesh	26%	74%
  India	44%	56%

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