Dry season vegetable production on a small-scale rainfed farm
1991
How, Chuen Ng
This study consists of two parts: (1) On-farm vegetable production system. This is to study the feasibility of vegetable production for the consumption of the farm family in the dry season (November to April) by using the collected water in the catchment pond during the rainy season. (2) Research study. Two experiments (20 December, 1990 to 31 January, 1991 and 22 February to 5 April, 1991) were conducted to find out a more appropriate watering rate (by Pan Evaporation Method) and watering interval to produce maximum vegetable yield under the prevailing environment of the farm. For the research studies, they showed that the water using efficiency was higher on lower watering rate and shorter watering interval. The crop water requirement was different between periods of study, in which the later period of the dry season showed a much higher crop water requirement than the early dry season. There is no significant difference among all the treatments on plant canopy size and leaf number of both experiments, this suggested that the plants of lower watering rate and longer watering interval were growing as normal as that of higher watering rate and shorter watering interval. For the on-farm vegetable production study, the rate of water drop (10.4 mm/day) of the catchment pond was higher than the allowed rate of water drop (8.6 mm/day), indicated that the water collected in the catchment pond was not enough for growing of vegetable throughout the dry season under the present watering rate (kc 0.9) and garden size. While the production of vegetable surplus the required quantity of vegetable by the farm family.
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