You are here: Home > Instructions > Agriculture/ Ag1000/ Instructions > Field Crops > Pumpkins Case Study: Arizona

Location:
San Simon, AZ 85632-8049

Contact Information:

Brian Driscoll

Farmed Acres: 17

Enterprises
Jalapenos, pumpkins, wheat, Rye

Agriculture Issues: Very high salt and powdery mildew

Farm Information:
Crop: Pumpkin var “Spartan”

Soil Type: Calcareous Silty Clay Loam with moderate salt levels
Pumpkins In Field San Simon, AZPumpkin Plants San Simon, Arizona

Input

Input Name

Rate (g/ac)

Cost/Unit

Cost/Acre

Microbes

Ag1000™

40

$2.50/gal

$100.00

Fertilizers

16-8-3-4 with Humate & Ca Lignonsulfate

20

$3.28/gal

$65.60

SuperCombo Foliar(w/Ag1000™)

n/a

$22.24

$133.44

Herbicides

n/a

n/a

n/a

n/a

Pesticides

n/a

n/a

n/a

Other

Total Costs

$299.04



Input

Input Name

Rate (g/ac)

Cost/Unit

Cost/Acre

Microbes

Ag1000™

n/a

n/a

n/a

Fertilizers

16-8-3-4 with Humate & Ca Lignonsulfate

20

$3.28/gal

$65.60

SuperCombo Foliar

n/a

n/a

n/a

Herbicides

n/a

n/a

n/a

n/a

Pesticides

n/a

n/a

n/a

Other

Total Costs

$199.04


Year

Field

Crop

Yield

40 ct. Boxes/acre

Ag1000™ Treatment/ac/yr

2010

Ag1000™

Pumpkins

54.52

40

2010

No Ag1000™

Pumpkins

45

None


This case study was done to test the application of Ag1000™. Two fields were tested, one with Ag1000™ and one without Ag1000™. Soil nitrogen, phosphorus, potassium, zinc, boron, and organic matter were tested both pre-planting and after harvest to compared concentrations. Five leaf analyses were also done throughout the season to test nutrient uptake by the plant. Irrigation and application of other inputs such as fertilizer, pesticides, herbicides, and compost were done based on the grower standards. Yield between the treated and non-treated were also compared.

Date Tables and Summaries for 2010 and 2011:
2010 Pumpkin Yields (Ag1000 vs Control)

Soil Nutrient Comparison 1
Soil Nutrient Comparison 2
Sodium and Organic Matter Percentage

2010 Raw Data:

Soil Sample Comparison: 12/7/11

Field

Treatment

pH

Ca

Na

K

Mg

Nitrate

P

OM

ESP

ppm

ppm

ppm

ppm

ppm

ppm

%

%

Block 1

No Ag1000™

8.4

5700

1100

810

10

14

10

.58

12.1

Block 2-5

Ag1000™

8.0

5700

600

990

14

55

18

1.00

7.1

At Coyote Farms, the 2010 pumpkin Ag1000™ trial showed no increase in calcium, but showed significant increases in potassium, phosphorus, and magnesium as well as a decrease in pH and significant decrease in sodium in the soil samples. It was also observed that pumpkin plants were less likely to get deceased from powdery mildew and better moisture retention was observed in both the soil and the fruit itself. Fruit load was also greatly increased with the use of Ag1000™. In a study on the nitrogen fixing bacteria in Ag1000™ by A. Javaid, it was found that photosynthetic bacteria improved crop growth and yield by increasing photosynthesis, producing bioactive substances such as enzymes and hormones, and controlling soil decease (A. Javaid 2009).

The main issue Coyote Farms was running into was high salts and white crusting on the surface of the soil. Because of the microbes’ ability to add organic matter and better structure the soil,less water is usually needed in Ag1000™ and fewer salts are added from irrigation water. Microorganisms like those in Ag1000™, also work against high salts in the soil by keeping salts from ionizing. Salt content was dramatically different between Block 1 (No Ag1000™) and Block 2-5 (Ag1000™) with Block 1 having an ESP of 12.1% versus 7.1% for Block 2-5.