M. A. Razzaque Akanda
Senior Scientific Officer
IWM Division, BARI, Gazipur
G. M. A. Halim
Senior Scientific Officer
Vegetable Division, HRC, BARI, Gazipur
M. A. Rashid
Chief Scientific Officer
Vegetable Division, HRC, BARI, Gazipur
Kh. Mazidul Hossain
Principal Scientific Officer
Soil Science Division, BARI, Gazipur
The experiment was conducted in a poly house of Horticulture Research Centre of BARI, Gazipur during the rabi season of 2007-2008. The night temperatures with in the poly shed was maintained between 150-170C for favorable condition. Drip irrigations were used in the study. The highest yield (14.56 t/ha) of capsicum was obtained from (T2) using a fertilizer dose, N100 P55 K80 B1 Zn4 kg/ha and irrigated by drip method at 2 days interval. The size and shape of fruits were also attractive and marketable in this treatment. The cull yield was also the lowest (0.46 t/ha) in this treatment. Compared to this treatment, the fertilizer dose of N100 P125 K120 B2 Zn4 kg/ha produced the lowest marketable yield (9.93) and the highest cull yield (1.05 t/ha). The seasonal water used for capsicum was 385mm through drip system. The highest benefit cost ratio (BCR) 5.44 is observed from treatment T2 and the lowest (3.68) from T4. Balanced application of micronutrients along with NPK found a good effect on fruit quality as well as yield of capsicum. So, capsicum cultivation under controlled environment with drip system by using balanced doses of micro-micronutrients is very much profitable with its growing demand.
Drip irrigation, Capsicum, Fruit Quality, Micro-nutrients
Crop-Soil-Water Management
The specific objectives were to determine the effects of different micro-nutrients on the fruit quality and yield of capsicum under drip irrigation, and to assess the cost effectiveness of the system.
The field experiment was conducted in the poly house of HRC, BARI, Gazipur during the rabi season of 2007-2008. The soil was sandy loam and low fertile. The initial nutrient status of the soil of the experiment field was analyzed. The variety of the crop was California Wonder. The experiment had the following treatment combinations.
Treatments
T1 = Drip irrigation at 2 days interval with fertilizers of N100 P55 K80 kg/ha
T2 = Drip irrigation at 2 days interval with fertilizers N100 P55 K80 B1 Zn4 kg/ha
T3 = Drip irrigation at 2 days interval with fertilizers N100 P55 K120 kg/ha
T4 = Drip irrigation at 2 days interval with fertilizers N100 P55 K120 B2 Zn6 kg/ha
The treatments were replicated thrice and 30 days old seedlings were transplanted on 14 November, 2007. Irrigation was applied though drip system based on crop ET demand. The emitter discharge was 4.60-4.70 litres/hr. Cowdung was applied @ 12.0 t/ha in the experimental field to improve soil fertility. Fertigation was done three times on December 1, 2007, December 16, 2007 and January 4, 2008. Harvesting was started on January 21, 2008. Plant height, no of branches/plant, unit fruit weight, length and diameter of fruit, cull and marketable yield were collected from selected samples. The cost analysis was done for the whole production system.
BARI Annual Research Report 2008
As, capsicum is a very high value crop, it is profitable to cultivate capsicum in poly house under drip irrigation system. It has a lot of demand in the supper markets of our country. The large/commercial farmers may take this opportunity to meet up this demand. For obtaining quality fruit of capsicum, application of balanced doses of fertilizer along with micronutrients and drip irrigation under controlled environment is pre requisite.
Report/Proceedings