|Fresh from my farm at Muar, Johore|
Land preparation started 14 days before planting and bed preparation accordingly. GML (Rate at 2.5 mt/ha) and organic fertilizer (at 3.5 mt/ha) application prepared on raised bed. Most sawi seeds was imported and expensive. Seeds at 1.5 kg/ha treated with fungicide (about 4.5 gm of Thiram) before mixed with fine sand ( 1 tin milkpot) and arrange planting in rows on the beds. Fertilizer application with NPK 13:13:6:4 after 6-7 days after sowing and start the thinning activity after 9-10 days with planting distance 10 cm x 15 cm. Second manuring program with NPK 15:15:15 about 100 kg/ha applied on 10 days after sowing. Weeding done manually and whereby the leaves count between 4-6 leaves. After 17 days apply NPK 15:15:15 (200 kg/ha) and spray foliar fertilizer (20 gm Fertilizer with 16 liter water).
Among popular pest for sawi in Malaysia was Helulla Worm (Hellula undalis) controlled with BT (Bacillus thruringiesis) or Trichloron, Chlorifluazuron, deltamethrin or dimethoate. Other pests was Ratus Worm (Spodoptera litura) which attack leaves and shoots and controlled by spraying cypermethrin, trichlorin or deltamethrin as label. Plutella (Plutella xylostella) attack the leaves and make holes and controlled with BT or pesticide. Other pest was Phylloretta cruciferae, Ulat Pangkas (Agrotis ypsilon) , Mites (Aphids spp) and Leaf Miner (Phytomyza spp). The most recent pest for sawi is Snail (Lamellasis gracillis - small snail and Sabulina octona -Long Snail) and controlled with methaldehyde or drainage improvement.
Sawi diseases was Soft Rot (Erwinia carotovora) that damage the leaves and bad smell and controlled by Good agriculture Practices (Burnt affected sawi and improve drainage system and water logged area). Leaf Rot or Reput Pangkal daun (Rhizoctonia solani) controlled with difenoconazole or pencycuron. Other disease in sawi was Lecuh anak benih (Phytium spp) and controlled by spraying propamocarb hydrochloride.
From my survey study, cost of production of sawi in Muar, Johor about RM 4,900.00 /ha and if yield for 9,000 kg produced in a hectare and farm gate price at RM 1.00/kg give gross farm income about RM 9,000.00/ha. Net Farm income calculated at RM 4,100/ha for 30 days period. Cost of production for every kg of sawi about RM 0.54 and farmers gain RM 1.83f or every one ringgit spent. Growing sawi is a profitable ventures.
PLANT SAWI.... ALWAYS HAPPY...
EAT SAWI.... GAIN HEALTHY....
KNOW THE SAWI TECHNOLOGY....
DONT WORRY..SAWI IS BRASSICA..
(24 Zulkaedah 1432H)