Organic farming techniques in Korea

Organic farming techniques in KoreaYoun Lee Organic Agriculture Division RDA Rep... Organic techniques in different cropsRice Paddy Oil cake, Chinese milk vetch Golden snail, Cu, plant e

Organic farming techniques in Korea

Youn Lee Organic Agriculture Division RDA

Rep of Korea

Organic techniques in different crops

Rice

Paddy

Oil cake, Chinese milk vetch Golden snail, Cu, plant extracts -

Plastic film house Paddy-upland conversionSolar heating, Microbial agents

Compost, oil cake, Bt, neem

Open upland (Chinese cabage pepper )

Upland

Compost, oil cake, Bt, neem Plant extracts, plastic mulching -

(Chinese cabage, pepper …) Orchard(apple, pear, …) Mineral oil, Cu, S, bark strippingCultivar, pheromone, living mulching

-Paddy-upland rotation

Disease incidence of garlic white rot

Fields investigated Disease incidence(%) Fields investigated

Region Numbers

Disease incidence(%) Paddy field Upland Namhae/weomeon 96 <0.1 19.4 Namhae/nammeon

Namhae/Idonmeon

51 43

0 0

50 60 70 80

7.3 6.10

10 20 30 40

2000 2001 Paddy –upland rotation Continuous cropping

Solar heating in plastic film house

Solar heating

Soil temperature during solar heating p p g g g g

Micro-environment control: Air circulation

1300 1800

20 25 30

90 100

:Fan :N-fan

300 800

Night time ↓ : 200ppm Night time ↑ : 0.5-1.5 Night time ↓ : 5-10

Effect of Fan installation on incidence of strawberry powdery mildew, yield and quality of strawberry

Fan+organic matters

Fan+microbial pesticide

6.112.0

30 7

80.161.0

417.0ND

10.811.2

3.13.1

Effect of fan installation on lettuce

Without Fan With Fan

7/151

Mixture of egg yolk and edible oil

1 Put egg yolk into water mix for 3-4min with mixer

2 Add edible oil at the mixture, mix for 4-5min with mixer

3 The mixtures are diluted to 100~150 times and sprayed evenly on

leaves and stems

Mixer

Egg yolk + edible oil = Liposome Dilution Spraying

Concentration of liposome and application volume

Preventive (0.3% liposome) Curative (0.5% liposome)Material

Effects of the mixture on various crops

Target Crop Control value(%) Place

Powdery mildew Cucumber

Lettuce Rose Cucumber

89.6-94.8 91.4-96.0 96.3

F a r m h o u s e Green house

F a r m h o u s e Downley mildew

S p i d e r m i t e s

Cucumber Rose

96.3 83.0-93.9

F a r m h o u s e Green house

9/151

Control Liposome

Revised methods for egg yolk and oil mixture

Egg yolk, oil mix + others

Egg yolk & oil mix Effectiveness

Effects

Egg yolk & oil mix Effectiveness

• powdery mildew : Egg yolk,oil+sulphur pow 4g/20L •• powdery mildewAphid : >95% : >90%(every 3day, 2-3)

p

y Tabacco Budwarm moth

yAnthracnose

: 50-60%

: 70-80%, Egg yolk+oil + Sulfur, Cu, Ca crossed treat Every 5-10 day

moth

Resistant cultivar for organic cultivation(pepper)

Resistance varieties & good commodity characteristics g y

Screening of 47 commercial pepper cultivars

- Greenhouse (‘07) ⇒ field (‘07) ⇒ farmer’s site (’08~09)

- Evaluation by Breeder, farmer, consumer(30 individuals)

y 18 indicators/different weigh values

- PR and virus resistance : 3 cultivars (‘08)

11/151

Grafting for controlling Phytophthora blight

Grafted pepper field

Non grafted pepper field

Grafting

Non-grafted pepper field

Grafted a pepper seedling

Protection from Anthracnose infection

Year

Infection (%)

Production (kg/ha)

Compared to non organic (%)

Green manure and disease suppression

Suppression of pepper Phytophthora blight by green

manure(rye)-and high ridge cultivation(HC)

Suppression of pepper Phytophthora blight by green

manure(rye)-and high ridge cultivation(HC)

<Rye cultivation> <Conventional cultivation>

Calcium supply by eggshell and vinegar

Dry and grind egg shells into flour.

Add the grinded egg shells in vinegar slowly

Add the grinded egg shells in vinegar slowly.

Keep the solution in 7days at 20-25℃ (mixing once a day)

Soluble process is complete if there is no bubble

Strain soluble calcium through a sieve

Diluted 200 ~ 500 times for application

Spray it on the front and back side of leaves

15

Slug control : Beer and tobacco mixture

Every 2-3m, place the plastic or paper cup filled with beer and tobacco mixture and add more beer and move to other place every 2-3 days

New organic techniques from farmers

17

Soluble sulfur compound

add 50L water & mix

add 33L water(to 100L volume)

Surfactant for disease and pest control

Plant extracts for pest control (many cases)

www.naturei.net

<Ginkgo leaves>

Alcohol

<Pepper>

Golden apple snail for weed control of rice

40-50kg/ha of the snails is required

- 80% of Mid-mature snails, 20% mature snails

More than 35 days growing nursery rice should be planted

Application period : Between 3-7 days after transplanting

Prevention of escape to other area is recommended

- Copper wire net or band is very effective

21

Liquid fertilizer from oil cake and yogurt

1 Put the mixture of vegetable seed cake

- (4.9%N, 6kg) and yogurt(3.9L) into water(300L)

2 Ferment the mixed liquid at room temperature for two weeks

3 Provide oxygen twice or three times a day using an air bubbler

Protection from mole damage

Commercial

Example of organic farming system in village scale

Organic persimmon

Beef cow (antibiotic free)

Organic Rice(25 ha)

Nutrient flow of the village

Forage

Beef cow Organic persimmon

Whole crop barley

Beef cow (antibiotic free) Organic persimmon

Webpage for ANSOFT

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ANSOFT HOMEPAGE

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Webpage for ANSOFT

ANSOFT HOMEPAGE Organic Techniques

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View page click

Num Subject date Nation hit

1 C l i l b h ll i t t 2011 09 18 K 232

1

1 Calcium supply by eggshell vinegar extract 2011.09.18 Korea 232

2 Snail trap by beer 2011.09.18 KHM 232

3 Grafting for disease prevention in pepper 2011.09.15 IDN 322

4 Compost tea making 2011.09.14 LAO 366

5 Herbal extract for pest control in cabbage 2011.09.06 MNG 341

6 Making soluble sulfur compound 2011.09.20 BGD 115

7 88

-Webpage for ANSOFT

ANSOFT HOMEPAGE Organic Techniques

Purpose of use To supply calcium to crops

Outline & Principles Soluble calcium extracted from egg shells by using

Vinegar prevents crops against calcium deficiency…

Main Effects Prevent crops against calcium deficiency (specially …)

Opinion of neighbor

.

farm Other effects …

Th k

Thank you