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Dhania (Coriander/Parsley)
5 months ago

Dhania (Coriander/Parsley)

Resource by Plusfarm

It is a bright green annual herb which is erect and hairless growing to about 40-60 cm tall which takes about 3-4 weeks to mature. In Kenya, coriander is grown in warm to cold regions for its attractive spicy leaves used in every household due to its aroma and the flavour it adds to food. It is used in stews and salads.


Varieties

Varieties

Characteristics

Cilantro

Flat toothed leaves, also known as spiny coriander.

Seed Coriande

This is grown for its seeds.

Leaf Ciliantro

Resembles parsley and has a strong and sharp smell.

Vietnamese coriander

Has narrow smooth-edged and darker leaves.


Cultivation

ECOLOGICAL REQUIREMENTS

Garden Preparation and Planting

Temperature

A range of 18- 25 0C to germinate and grow into plants. It cannot withstand extreme temperatures, either too cold or hot.

Soil

Thrives in a well-drained loam and sandy-loam soils with an optimal PH range of 6-8. This soil should be rich in organic matter.

Sunlight

During germination, coriander needs sunlight for only few hours daily.

However, as they begin producing leaves, the crop requires 5-6 hours of sunlight.

Propagation is by seeds. Choose a flat site that hasn’t been cultivated for about 3-6 months. Spray land with glyphosate -containing agrochemical in order to get rid of all types of weeds.

Prepare a fine tilth.

Mix soil with manure and DAP. In order to stimulate root development, improve nutrient uptake levels, improve the soil structure, among other benefits, incorporate manure (1 ton) and DAP 50kg (50kg). Raise planting beds, about 1 m * 5-10m and make rows. Remember to also water the


Drench fumigants into the soils to prevent soil-borne pathogens.

Planting

Soak seeds for about 6-12 hours in order to break seed dormancy and for better germination. Drill seeds in the rows, 2-4 cm deep, and 10cm apart. Cover seeds with a thin layer of soil and  water seeds with a light water shower. Cover seeds with a thin layer of dry grass (mulch)

Seeds start germinating in about 1-2 weeks. Once seedlings begin germinating, the mulch is removed


Pests and Diseases / Commonly Used Agrochemicals

 

Pests and Symptoms

Active Ingredient

Commonly used Agrochemicals

Nematode

Patches of variable crop growth with stunted, chlorotic, and excessively wilted plants. Often leaves number and size reduces.

 Azadirachtine (0.15%)

 ACHOOK 0.15% EC

Leaf Miner

Wiggly lines or blisters on leaves, Blotchy mined leaves that become brown and papery

Abamectin|Avermectin B1 (50G/L)

Cyromazine (750G/KG)

Abamectin|Avermectin B1 (18 g/L)

Chlorantraniliprole (45 g / L)

 ALONZE 50 EC

CYROGUARD 75% WP 

VOLIAM TARGO 063 SC B

Thrips

Plant leaves may turn pale, splotchy, and silvery, then die. Injured plants are twisted, discolored and scarred

Abamectin|Avermectin B1 (50G/L)

Beauveria bassiana

Thiacloprid (480G/L)

Chlorantraniliprole (DPX E-2Y45) (200G/L)

ALONZE 50 EC

BIOPOWER 1.5 LIQUID

CALYPSO 

CORAGEN 20SC

Caterpillar

Hole in Leaves/Missing Leaf Tips

Indoxacarb (p) (150G/L)

Flubendiamide (480G/L)

Chlorantraniliprole (DPX E-2Y45) (200G/L)

AVAUNT 150 EC

BELT 480 SC

CORAGEN 20SC

Diamond back moth

Entire plants may become riddled with holes; windowing

Flubendiamide (480G/L)

Beauveria bassiana(150 g/ L)

BELT 480 SC

BIOPOWER 1.5 LIQUID

Aphids

Stunting and leaf curling and twisting, the honeydew they secrete, and the associated sooty mold

Beauveria bassiana(150 g/ L)

Thiacloprid (480G/L)

Pymetrozine (500G/KG)

BIOPOWER 1.5 LIQUID

CALYPSO

CHESS 50 WG

Cutworm

Seedlings/Young Shoots Sheared at Base

Cypermethrin|Alphamethrin (100G/L)

Lambda-Cyhalothrin (25G/L)

DEGREE 100 EC

TATA UMEME 2.5 EC

Beetles

Severely wilted young plants and plants with dry young leaves. Plant death follows shortly after these symptoms

Lambda-Cyhalothrin (17.5G/L)

Lambda-Cyhalothrin 

(25G/KG)

Lambda-Cyhalothrin (50G/L)

DUDUTHRIN 1.7 EC

KARATE 2.5 WG

KARATE ZEON

Whitefly

Leaves will wilt, turn pale or yellow, growth will be stunted, and eventually leaves may shrivel and drop off the plant; Honeydew presence

Lambda-Cyhalothrin (25G/L)

Spirotetramat (75G/L) 

Flubendiamide(100G/L)

TATA UMEME 2.5 EC

TIHAN OD 175

 

Disease and Symptoms

Active Ingredient

Commonly used Agrochemicals

Damping Off

Seeds become soft and rot, fail to germinate. Water soaked lesions girdling the stems at the soil line can be seen. 

Thiram (50 %)

Chlorothalonil (500G/L) 

Azoxystrobin (60G/L)

AGRICHEM FLOWABLE THIRAM

COMPLIANT 560 SC

METACOZEB 72 WP

Powdery Mildew

Whitish powdery growth on leaves, petioles and stems. Leaves become chlorotic. Heavy infections cause distortion of flowers.

 Metalaxyl-M (339 g / l)

 

Azoxystrobin (250G/L)

APRON XL

MILESTONE 250 SC

Leaf Spots

Brown or black water-soaked spots on the foliage, sometimes with a yellow halo, usually uniform in size. Under dry conditions the spots have a speckled appearance.

Mancozeb (640G/KG

 

Azoxystrobin (250G/L) 

METACOZEB 72 WP

MILESTONE 250 SC

Xanthomonas black Rot

Initially expressed as 'V' shaped lesions of the leaf margins and a blackening of the veins and the vascular system in the leaves, stems and roots (hence the name black rot). Eventually whole leaves can yellow, wilt and die back.

Copper oxychloride (85%)

 

Copper oxide|Cuprous oxide (60G/L)

ISACOP

 

MASTERCOP 60 SC

Soft Rot

Infected plants have small water soaked lesions near the base of their petioles which become soft, sunken and brown as infection advances.

 Metalaxyl 80g/kg + Mancozeb 640g/kg 

 Oshothane® 80WP (P) 

Matco® 72WP (C) 

Bio-Cure B

Damping off

Seeds become soft and rot, failing to germinate seedlings die after emerging from the soil. Water soaked lesions girdling the stems at the soil line can be seen. 

Fludioxonil (480 g / l)

MAXIM 480FS

Downy Mildew

Leaf yellowing is the most noticeable symptom 

Mancozeb (640G/KG)

Mancozeb (64%) 

Metalaxyl (8%)

RIDOMIL GOLD MZ 68 WG

TATA MASTER

White Blister

White 'blisters' appear on the underside of the plant's leaves, with a light green or yellow discoloration on the upper leaf surface.

Mancozeb (640G/KG)

Mancozeb (64%) 

Metalaxyl (8%)

RIDOMIL GOLD MZ 68 WG

TATA MASTER

Black Rot

Initially appear as yellow to light brown patches at leaf margins; veins   later darken in infected leaves. Infected leaves later turn brown and dry out, leaving angular-shaped lesions on the leaf margin. 

Copper oxide|Cuprous oxide (60G/L)

Copper hydroxide (66.7%)

MASTERCOP 60 SC

VITRA 40 WG

 


Post Harvest

Coriander plants are ready to be harvested after about 6 weeks. However, different varieties have varied maturity days and the ecological conditions affecting growth. All parts of coriander are edible but the fresh leaves and the dried seeds are the most preferred. The shiny green coloured leaves are plucked, or the entire plant pulled unless one wants to harvest the seeds. Leaves begin turning feathery and yellow-colored flowers develop. This is followed by the formation of seeds, which are harvested a week later.

Fresh harvested coriander can be dipped in freshwater or refrigerated to prevent wilting. The seeds are processed into useful forms, for example, curry powder.


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