A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Supplemental irrigation — a safeguard technique for successful cultivation of Monsoon rice (Transplanted Aman) in Bangladesh
Abstract The study was conducted in Monsoon (Transplanted Aman) at BRRI farm, Joydebpur, from 1978–1987, to determine the impact and viability of supplemental irrigation. The results of 8 years of experimentation indicate that the impact of supplemental irrigation mainly depends on rainfall distribution patterns and the last precipitation of the season. Generally, the late transplanted crops suffer from moisture stress when the last rainfall ceases by the first week of October. Under this situation, one timely supplemental irrigation of 60 mm could produce about 58% more yield, and the consequent benefit cost ratio of supplemental irrigation would be 5.3 to 14.5, which is highly profitable. The study reveals that if the last rainfall continues up to the third week of October, the supplemental irrigation is still profitable. When sufficient rainfall occurs in November, there is no need for supplemental irrigation, even in late transplanting, and continuous standing water is not required for rice cultivation provided the rain water can be managed properly.
Supplemental irrigation — a safeguard technique for successful cultivation of Monsoon rice (Transplanted Aman) in Bangladesh
Abstract The study was conducted in Monsoon (Transplanted Aman) at BRRI farm, Joydebpur, from 1978–1987, to determine the impact and viability of supplemental irrigation. The results of 8 years of experimentation indicate that the impact of supplemental irrigation mainly depends on rainfall distribution patterns and the last precipitation of the season. Generally, the late transplanted crops suffer from moisture stress when the last rainfall ceases by the first week of October. Under this situation, one timely supplemental irrigation of 60 mm could produce about 58% more yield, and the consequent benefit cost ratio of supplemental irrigation would be 5.3 to 14.5, which is highly profitable. The study reveals that if the last rainfall continues up to the third week of October, the supplemental irrigation is still profitable. When sufficient rainfall occurs in November, there is no need for supplemental irrigation, even in late transplanting, and continuous standing water is not required for rice cultivation provided the rain water can be managed properly.
Supplemental irrigation — a safeguard technique for successful cultivation of Monsoon rice (Transplanted Aman) in Bangladesh
Islam, Jahirul (author) / Bhuiyan, Lukmanur Rahman (author) / Ghani, Abdul (author)
1991
Article (Journal)
English
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