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Let’s read soil analysis results

Let’s read soil analysis results
Field Sample pH
wat.
рН
sal.
рН
buf.
Cond.
mS/cm
О.M.
%
NO3-N
ppm
P(M)
ppm
P(B)
ppm
NH4ОAc

CEC
  meq/ 100g

Base saturation

SO4-S
ppm

DTPA

B
ppm

Mo
ppm

Ca
ppm

Mg
ppm
K
ppm

Na
ppm

H %

Ca % Mg % K %

Na %

Zn
ppm

Mn
ppm
Fe
ppm

Cu
ppm

1

7,9 0,29 2,5 4,2 25

5565

375 249

22

31,7

0,0 87,8 9,9 2,0 0,3

7,6

0,34 2,68 7,15 0,60 0,55 0,25

Soil texture

Field

Sample % Sand % Silt % Clay Soil type

1

20,50 49,00 30,50

Clay loam

Fertilizer recommendations kg/ha 

Date

Field Sample

Crop

Crop Yield

Nitrogen P2O5 K2O Lime
t/hа
Gypsum
t/hа
MgО Zn Mn Cu Fe Mo S

B

10.03.2020

1 Corn 10,0 t/hа 165 35 10,9 1,1 10

10.03.2020

1 Sunflower 4,0 t/hа 120 45 4,6 1,1 7

10.03.2020

1 Soybean 3,0 t/hа 25 10,9 1,5 9

Soil pH (7.9) is alkaline.

Soil salinity  (Сond = 0.29) is within optimal values.

Soil organic matter level  (OM = 2.5) refers to average values.

The available phosphorus (P = 25 ppm) and exchangeable potassium (K = 249 ppm) are within the mean values ​​(P) and very high values ​​(K).

The values ​​of the exchangeable forms of calcium (Ca = 5565 ppm) and magnesium (Mg = 375 ppm) are within high values.

Microelements such as: copper (Cu = 0.6 ppm), iron (Fe = 7.15 ppm), molybdenum (Mo = 0.25 ppm) and boron (B = 0.55 ppm) indicate their complete suitability for the specified crops and planned yield. Zinc (Zn = 0.34 ppm), manganese (Mn = 2.68 ppm) and sulfur (S = 7.6 ppm) are in low level.

Sulfur deficiency can be eliminated by introducing ammonium sulfate (NH4) 2SO4; dose of ammonium sulfate kg / ha = Sulfur x 5.

On maize in the 9-10 leaf phase, on soybean in the 5th trefoil phase and on sunflower in the inflorescence phase, eliminate zinc and manganese deficiency by foliar application of zinc salts (zinc sulfate ZnSO4 · 7H2O) and manganese salts (manganese sulfate МnSO4·5H2O). ) with a chelating agent (EDTA / Trilon B or OEDP).

Zinc deficiency can also be eliminated by spreading zinc sulfate (ZnSO4 · 7H2O) in the amount of: 50 kg / ha – on corn and soybeans; 20 kg / ha – on sunflower.