CSU Soil Kit

Soil Test Results

I recieved the results back from the Colorado State University Soil Labs site http://www.soiltestinglab.colostate.edu

Shade Area Results

Lab Number: H1648a
Sample ID Number: shade
Date Received 4/20/2011
Date Reported: 5/4/2011
County Jefferson

Irrigation yes, sprinkler

Plants brunnera, hydrangea to be grown

previous amendments added: bonemeal at planting (tbsp), top dress compost yrly 1″ (5-6yrs), soil garden blend in 2009 to veg 2″ & 1″ compost, mulch each year

pH 7.5
pH is high. pH 6.0 to 7.2 is the preferred pH range for growth of most plants, but most garden and landscape plants tolerate this higher pH with little problem.

E. C. OR SALTS 0.4 mmhos/cm
Low. When E.C. is less than 2.0, salinity is not a problem for plant growth.

Lime Estimate Very High
Lime is greater than 5%. It is not unusual to have very high lime in the soil. Plants can still grow quite well in soil with this lime content.

Texture Estimate Sandy Clay
This soil may drain at a low to very low rate. Water schedules may have to be increased to allow for better water infiltration in the soil profile.

O. M. 10.3% (Organic Matter)
OM is High; no additional OM e.g. compost is needed. You don’t need to build up the OM content of this soil beyond existing levels, but rather focus on protecting and replenishing the OM content e.g.by using organic mulch. Also consider a fall-planted cover crop to be used as a green manure.

NO3-N 10
(ppm Nitrate-Nitrogen)
N is low: For veggies and flowers apply 0.3 lb. N per 100 sq. ft. to the soil. For each 0.1 lb. of N needed, apply about ¼ lb. urea, or ½ lb. ammonium sulfate, or 3/4 lb. bloodmeal, or 1 lb. corn gluten meal or 5 lb. alfalfa meal pellets per 100 sq. ft.
Other fertilizers can be used as well. Check with your local garden center or home improvement store to determine what fertilizers are available in your area. When calculating fertilizer rates take the amount of N needed and divide by the % N in the fertilizer. For example, if your fertilizer contains 30% N, take 0.30 lbs (N needed) divided by 0.30 (N in the fertilizer) to get 1 lb of the 30% N fertilizer that is needed to apply per 100 sq. ft.

P 119.8
(ppm Available Phosphorus)
High; no additional P2O5/1000 sq.ft

K 662.2
(ppm Available Potassium)
High; no additional K2O is needed.

Zn 23.1
(ppm Available Zinc)
Adequate; no additional Zn is needed

Fe 40.7
(ppm Available Iron)
Adequate; no additional Fe is needed

Mn 9.0
(ppm Available Manganese)
Adequate; no additional Mn is needed

Cu 4.6
(ppm Available Copper)
Adequate; no additional Cu is needed.

B 0.2
(ppm Available Boron)
Adequate; no additional B is needed.


Vegetable Patch Results

Lab Number: H1649b
Sample ID Number: vegetable
Date Received 4/20/2011
Date Reported: 5/4/2011

 

previous amendments added: bonemeal at planting (tbsp), top dress compost yrly 1″ (5-6yrs),
soil garden blend in 2009 to veg 2″ & 1″ compost, mulch each year
Irrigation yes, soaker hose vegetables, flowers to be grown

pH 7.1
pH 6, which is acidic, to pH 7.2, which is slightly alkaline, is the preferred pH range for growth of most plants.

E. C. OR SALTS
(Electrical Conductivity)
1.1 mmhos/cm

Low. When E.C. is less than 2.0, salinity is not a problem for plant growth.

Lime Estimate
Very High
Lime is greater than 5%. It is not unusual to have very high lime in the soil. Plants can still grow quite well in soil with this lime content.

Texture Estimate
Sandy Clay Loam

This soil may drain at a low to very low rate. Water schedules may have to be increased to allow for better water infiltration in the soil profile.

O. M. 3.4%
(Organic Matter)

Low. A good goal for flowers or veggies is to gradually increase the OM content to about 5% over a period of years. For 2-3 years in the fall, apply 2-3″ depth of plant-based compost, or 1″ depth of animal-based compost, and incorporate in the top 6-8″ of the soil.

NO3-N 39
(ppm Nitrate-Nitrogen)

N is low: For veggies and flowers apply 0.1 lb. N per 100 sq. ft. to the soil. For each 0.1 lb. of N needed,
apply about ¼ lb. urea, or ½ lb. ammonium sulfate, or 3/4 lb. bloodmeal, or 1 lb. corn gluten meal or
5 lb. alfalfa meal pellets per 100 sq. ft.
Other fertilizers can be used as well. Check with your local garden center or home improvement store to determine what fertilizers are available in your area. When calculating fertilizer rates take the amount of N needed and divide by the % N in the fertilizer. For example, if your fertilizer contains 30% N, take 0.10 lbs (N needed) divided by 0.30 (N in the fertilizer) to get 0.3 lb of the 30% N fertilizer that is needed to apply per 100 sq. ft.

P 114.8
(ppm Available Phosphorus)

High; no additional P2O5/1000 sq.ft

K 656.1
(ppm Available Potassium)
High; no additional K2O is needed.

Zn 13.4
(ppm Available Zinc)

Adequate; no additional Zn is needed

Fe 68.3
(ppm Available Iron)

Adequate; no additional Fe is needed

Mn 4.0
(ppm Available Manganese)

Adequate; no additional Mn is needed

Cu 6.1
(ppm Available Copper)

Adequate; no additional Cu is needed.

B 0.2
(ppm Available Boron)
Adequate; no additional B is needed.

CSU Soil Kit

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