Date

Location

Cultural System

Vitazyme/Fertilization

Results

1996

Brownfield, Texas

Variety:  Valencia

Soil type:  silty loam

Seeding date:  May 7 (Vitazyme field), and May 2 (control field)

Seeding rate:  90 lb/acre

Row spacing:  40-inches

Harvest date:  September 26 (Vitazyme); September 20 (Control)

Irrigation: Center pivot

Vitazyme application:  At planting, 13 oz/acre of Vitazyme was applied in the seed row

Peanut yield:

Control: 2,376 lb/acre
Vitazyme: 3,123 lb/acre (+31%)
 

Income Increase:

+$276.39/acre

Fertilization:  Ten tons/acre of manure were applied in 1995 over all areas.  The peanuts were inoculated with Rhizobium bacteria at planting.

Date

Location

Cultural System

Vitazyme/Fertilization

Results

1996

St. Kitts, West Indies

Variety:  Tennessee red

Seeding date:  unknown

Seeding rate:  unknown

Harvest date:  November 22, 1996

Vitazyme application:  Vitazyme as a soak on the seeds, and air-dried before planting

Peanut Yield:

Control: 10,890 lb/acre
Vitazyme: 17,696 lb/acre (+63%)

Fertilization:  none

Date

Location

Cultural System

Vitazyme/Fertilization

Results

1997

Brownfield, Texas

Variety:  Valencia (organically grown)

Row width:  40 inches

Seeding rate:  57 lb/acre

Seeding date:  May 6 (check) and May 8 and 12 (Vitazyme)

Soil type:  Brownfield sandy loam

Vitazyme application:  Vitazyme at 13 oz/acre on the seed at planting, along with a live Rhizobium inoculant; Vitazyme at 10 oz/acre sprayed on the foliage and soil at early bloom

Peanut yield:

+6%

*This yield increase should have been higher due to a breakdown of the irrigation system, resulting in less water delivered to the Vitazyme rows later in the season
 

Income Increase:

+$57.04/acre

Fertilization:  Manure at 10 tons/acre, applied in February of 1996

Date

Location

Cultural System

Vitazyme/Fertilization

Results

1998

St. Kitts, West Indies

Variety:  Tennesse red

Seeding rate:  unknown

Seeding date:  about December 24, 1996

Harvest date:  March 4, 1997

Vitazyme application:  Vitazyme was sprayed at 12 oz/acre over the foliage and soil at five weeks after planting.

Peanut yield:

Control: 1,793 lb/acre
Vitazyme: 2,763 lb/acre (+54%)
 

Plant height:

Control: 10.3 in
Vitazyme: 15.7 in (+52%)

Fertilization:  none

Date

Location

Cultural System

Vitazyme/Fertilization

Results

1998

Ebini region, Guyana

(Caribbean Agricultural Research and Development Institute)

Variety:  AK62

Seeding date:  unknown

Seeding rate:  unknown

Row width:  unknown

Harvest date:  unknown

Vitazyme application:  Vitazyme once:  Vitazyme applied at 13 oz/acre only at pegging.  Vitazyme twice:  Vitazyme applied at 13 oz/acre to the soil after planting but before emergence, and at the same rate at pegging

Plant height:

Control: 58.0 cm
Vitazyme once: 53.2cm (-8%)

Vitazyme twice: 56.5 cm (-3%)
 

Peg fresh weight:

Control: 571.8 grams
Vitazyme once: 664.8 grams (+16%)

Vitazyme twice: 736.2 grams* (+29%)
*Significantly greater than the control at P=0.06.  LSD_0.05=177.6.

Peg dry weight:

Control: 432.2 grams
Vitazyme once: 497.2 grams (+15%)

Vitazyme twice: 538.7 grams* (+25%)
*Significantly greater than the control at P=0.07.  LSD_0.05=113.6.

Peg number:

Control: 15.1
Vitazyme once: 16.7 (+11%)

Vitazyme twice: 16.0 (+6%)
 

Pod yield:

Control: 8.78 kg
Vitazyme once: 10.63 kg** (+21%)

Vitazyme twice: 9.33 kg* (+6%)
*Significantly greater than the control at P=0.14; **significantly greater than the control at P=0.01.  LSD_0.01=1.29.

Fertilization:  unknown

Date

Location

Cultural System

Vitazyme/Fertilization

Results

2002

Whitharral, Texas

Variety:  Spanish, "Tam-Span 90"

Planting date:  May 18, 2002

Row spacing:  40 inches, double row with 8 in spacing

Soil type:  fine sandy loam

Harvest date:  dug October 21, picked up about November 15

Vitazyme application:  13 oz/acre June 18, on the leaves and soil

Peanut yield:

Control: 3,681 lb/acre
Vitazyme: 4,770 lb/acre (+30%)
 

Cost:Benefit ratio of Vitazyme:

52:1

Income Increase:

+$208.00/acre

Fertilization:  20 lb/acre N preplant, 11-50-0 postplant; center-pivot irrigated

Date

Location

Cultural System

Vitazyme/Fertilization

Results

2003

Whitharral,Texas

Variety:  Spanish, "Tam-Span 90"

Planting date:  May 15, 2003

Seeding rate:  100 lb/acre

Previous crop:  cotton

Row spacing:  40 inches to middles, 8 inches on berm

Soil type:  medium sandy loam

Harvest date:  November 18, 2003 (dug several weeks earlier)

Vitazyme application:  13 oz/acre at planting, 13 oz/acre about July 20 on the leaves and soil

Peanut yield:

Control: 3,515 lb/acre
Vitazyme: 3,582 lb/acre (+2%)

[Note: a very wet year with much weed pressure, especially in the Vitazyme treatment]

Fertilization:  11-52-0 fertilizer applied preplant; center-pivot irrigated