Boitamari

Nutrient by nutrient

• Nitrogen

  Good
  Low 2% Medium 76% High 23%

  Almost every soil test here had enough

  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	2%	76%	23%
  Bongaigaon	2%	57%	41%
  Assam	2%	60%	38%
  India	64%	30%	6%

• Phosphorus

  Good
  Low 18% Medium 39% High 43%

  2 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	Low	Medium	High
  Here	18%	39%	43%
  Bongaigaon	20%	35%	46%
  Assam	10%	25%	65%
  India	14%	41%	45%

• Potassium

  Poor
  Low 55% Medium 41% High 4%

  6 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/ha

  Healthy soil has 110 kg/ha or more.

  Compared with the wider area

  Place	Low	Medium	High
  Here	55%	41%	4%
  Bongaigaon	46%	48%	6%
  Assam	37%	55%	8%
  India	14%	53%	34%

• Organic carbon

  Poor
  Low 56% Medium 14% High 29%

  6 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	56%	14%	29%
  Bongaigaon	42%	12%	46%
  Assam	28%	23%	50%
  India	48%	28%	23%

• pH

  Good
  Acidic 13% Neutral 87%

  1 in 10 soil tests here came out acidic

  What this means

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

  Acidic Neutral Alkaline

  Most crops do best at pH 6.5 to 7.5.

  Compared with the wider area

  Place	Acidic	Neutral	Alkaline
  Here	13%	87%	0%
  Bongaigaon	17%	83%	0%
  Assam	42%	58%	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 salty	Salty
  Here	100%	0%
  Bongaigaon	100%	0%
  Assam	100%	0%
  India	96%	4%

• Sulphur

  Good
  Short 8% Enough 92%

  1 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	8%	92%
  Bongaigaon	14%	86%
  Assam	6%	94%
  India	24%	76%

• Zinc

  Okay
  Short 43% Enough 57%

  4 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	43%	57%
  Bongaigaon	28%	72%
  Assam	20%	80%
  India	35%	65%

• Iron

  Good
  Short 2% Enough 98%

  Almost every soil test here had enough

  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	2%	98%
  Bongaigaon	3%	97%
  Assam	1%	99%
  India	24%	76%

• Copper

  Good
  Short 7% Enough 93%

  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	Short	Enough
  Here	7%	93%
  Bongaigaon	3%	97%
  Assam	6%	94%
  India	5%	95%

• Manganese

  Okay
  Short 46% Enough 54%

  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	Short	Enough
  Here	46%	54%
  Bongaigaon	30%	70%
  Assam	14%	86%
  India	13%	87%

• Boron

  Poor
  Short 94% Enough 6%

  9 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 more

  Healthy soil has 0.5 ppm or more.

  Compared with the wider area

  Place	Short	Enough
  Here	94%	6%
  Bongaigaon	97%	3%
  Assam	86%	14%
  India	45%	55%

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

Climate in Bongaigaon

Villages in this block