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Speedfol™ Rice SP Increases Rice Grain Yield by 20% in Coastal Peru.

The area under rice in Peru is around 350.000 hectares and most of the production is located in the major growing regions in Coastal Peru, namely Piura, Lambayeque, La Libertad and Arequipa. In all cases irrigation is applied to achieve high rice yields. Peruvian rice farmers use little to no potassium. Between February and July 2012, 3 foliar applications with Speedfol™ Rice SP were tested in 3 locations of these regions (Table 1). The locations are far away from each other and they also differ in terms of the agronomic management system, the rice variety, and, the applied fertilizers. The area has desert characteristics and the clay soils are alkaline and heavy with low levels of organic matter and micronutrients.

Table 1. Key data of the 3 test zones.

 

 

 

 

 

 

Nutrient input fertilizer (kg/ha)

Region

Place

Ubication

Soil type

Soil pH

Variety

N

P2O5

K2O

MgO

Piura

La Unión

5°23´30" S/S- 80°44´57" W/O

Clay

7,8

NIR IR 43

231

46

0

0

La Libertad

Chepen

7°13´37" S/S- 79°25´47" W/O

Clay

8,0

NIR IR 43

212

47

64

20

Arequipa

Cocachacra

17°5´45" S/S- 71°45´70" W/O

Clay loam

7,7

Tinajones

350

127

0

0


In each place, a leading producer was selected, having a homogenous field with similar production conditions for all treatments to be performed. 2 or 3 manual foliar applications were made, using a rucksack, and with an interval between 20 and 30 days. The 3 stages of application were: Tillering initiation, panicle initiation, and, booting. The performed treatments can be observed in Table 2 with the remark that in La Libertad the third application did not take place because of the earliness of the crop, which excluded entering the field close to the harvesting period (risk of “lodging” the plant).

Table 2. The applied treatments in the 3 test zones.

Tratamiento

Piura and Arequipa

La Libertad

T0

0 kg/ha (only 3 applications with water)

0 kg/ha (only 2 applications with water)

T1

12 kg/ha (3 applications of 4 kg each)

8 kg/ha (2 applications of 4 kg each)

T2

24 kg/ha (3 applications of 8 kg each)

16 kg/ha (2 applications of 8 kg each)


In the 3 regions, Speedfol™ Rice SP generated average increases of minimum 10% more grain yield in the T1 plots and up to 20% more grain yield in the T2 plots (Table 3 and Figure 1). The reason for this increase is probably due to the yearlong lack of potassium fertilization as well as due to the absence of zinc in the soils of Coastal Peru.

Table 3. The effects of foliar applications of Speedfol™ Rice SP on yield and quality of rice in 3 regions of Coastal Peru.

 

Total applied dosis of Speedfol™ Rice SP (kg/ha)

Yield (kg/ha)

Quality (% broken grain)

Region

T0

T1

T2

T0

T1

T2

T0

T1

T2

Piura

0

12

24

9.940

11.050

11.800

9,44

8,83

7,75

La Libertad

0

8

16

9.730

10.570

11.830

19,8

18,6

11,9

Arequipa

0

12

24

9.700

10.800

11.700

(*)

(*)

(*)



Moreover, not only did we observe the competitive advantage of Speedfol™ Rice SP to increase yield, but also to improve the quality of the grain (Table 3). Referring to the tests performed in Piura and La Libertad, a substantial decrease of the percentage of broken grain was noted. 6% less in the case of the T1 treatments, and, even up to 17 or 40% less for the T2 treatments in Piura and La Libertad, respectively.


Figure 1. The number of grains per panicle for the treatments T0, T1 and T2, assessed in the course of March 2012 in Arequipa.

All data shown in Table 4 clearly indicate the major economic benefit for the rice farmer to use Speedfol™ Rice SP. In all cases an additional net income between 294 US$/ha and 957 US$/ha was noted. Despite differences in variety, climte, type of fertilizer, etc. the results speak for themselves when concluding that Speedfol™ Rice SP is an appropriate and highly beneficial Specialty Plant Nutrition product for the rice crop conditions in Peru.

Table 4. Economic analysis for the different foliar applications with Speedfol™ Rice SP in the 3 regions of Coastal Peru.

 

Speedfol™ Rice SP

 

Region

Treatment

Dose (kg/ha)

Expenses (US$/ha)

Yield (kg/ha)

Rice price (US$/kg)

Broken grain (%)

Loss/broken grain (US$/ha)

Gross income (US$/ha)

Net income (US$/ha)

Difference (US$/ha)

Piura

T0

0

0

9.940

0,34

9,4

316

3.034

3.034

0

T1

12

68

11.050

0,34

8,8

329

3.395

3.327

+294

T2

24

136

11.800

0,34

7,8

308

3.668

3.533

+499

La Libertad

T0

0

0

9.730

0,40

19,8

771

3.121

3.121

0

T1

8

45

10.570

0,40

18,6

787

3.442

3.396

+275

T2

16

91

11.830

0,40

11,9

563

4.169

4.078

+957

Arequipa

T0

0

0

9.700

0,45

-

-

4.365

4.365

0

T1

12

82

10.800

0,45

-

-

4.860

4.779

+414

T2

24

163

11.700

0,45

-

-

5.265

5.102

+737



Figure 2. Rice grain yield (kg/ha) for the treatments T0, T1 and T2, assessed in the course of July 2012 in Piura.