Fertilization
Cabbage is a heavy feeder with dense and shallow root system. In addition to 20-25 t of organic manure, a fertilizer dose of 180:50:50 kg NPK/ha is recommended.
Irrigation
To maintain growth, cabbage requires a consistent supply of moisture, and should as a general rule receive a minimum of 2.5 cm of water per week. Larger quantities may be required when cabbage is grown on sandy soils or when evapo-transpiration is high. Heavy irrigation after a dry spell leads to quit firm heads and may burst or split open within 24hours.
Intercultural operations
Since most of the feeding roots are concentrated in top 5cm layer, deep intercultural operations are to be avoided. Providing organic mulch or black polythene mulch are beneficial for increasing soil temperature and to increase yield.
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