Fertilizer applicationSeeds should be put before the fertilizer formula primer 4-8-25-0 or 7-7 the rate of 20-25 kg/Rai powder may be used, or (B) boron raek bots rate of 2 kg/Rai in areas where the soil is sandy, converted by ruan sowing mixed with fertilizer or primer. When sunflower 25-30 days, follow the version and get rid of the weeds piled along with fertilizer urea 46-0-0, the rate of 15-20 kg/Rai 20 cm away from the cone trees (be careful not to touch the exposed blade) is multiplied by row trailed fertilizer laeoklop.
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