AI SearchDry season vegetable production on a small-scale rainfed farm
Call Number: AIT Thesis no. AE-91-45 Material type:
SeriesSeries: Asian Institute of Technology. Thesis ; no. AE-91-45Publication details: Bangkok : Asian Institute of Technology, 1991Description: 70 p. + 1 online resourceSubject(s): Online resources: Dissertation note: Thesis (M.Sc.) - Asian Institute of Technology, 1991 Summary: 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 water collected 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. The research studies showed that water using efficiency was higher on lower watering rates and shorter watering interval. The crop water requirement was different in each periods of study and the later period of the dry season showed a much higher crop water requirement than the early dry season. There was no significant difference among the treatments on plant canopy size and leaf number of both experiments. This suggested that the plants which received a lower watering rate and longer watering interval were growing as normal a s that of plants received 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. Labour supply was also found to surplus the demand on vegetable production. Water availability was the concluded the prime factor to constrain the production of vegetable in the dry season for the farm. Therefore, several revision were made to reduce the irrigation water rate, principally by: (a) Reduction of the farm garden size, and (b) modification of crop coefficient values from 0.9 to 0.5.
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A thesis submitted in partial fulfillment of requirements for the degree of Master of Science.
Thesis (M.Sc.) - Asian Institute of Technology, 1991
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 water collected 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. The research studies showed that water using efficiency was higher on lower watering rates and shorter watering interval. The crop water requirement was different in each periods of study and the later period of the dry season showed a much higher crop water requirement than the early dry season. There was no significant difference among the treatments on plant canopy size and leaf number of both experiments. This suggested that the plants which received a lower watering rate and longer watering interval were growing as normal a s that of plants received 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. Labour supply was also found to surplus the demand on vegetable production. Water availability was the concluded the prime factor to constrain the production of vegetable in the dry season for the farm. Therefore, several revision were made to reduce the irrigation water rate, principally by: (a) Reduction of the farm garden size, and (b) modification of crop coefficient values from 0.9 to 0.5.
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