SOVIET INDUSTRIAL OUTPUT UP IN FIRST QUARTER Soviet industrial output in the first quarter of this year grew by 2.5 pct compared with the first three months of 1986, Tass news agency reported. A regular meeting of the Politburo heard that in March, industry achieved the average daily rate needed to fulfil annual targets. Quarterly plans were exceeded in the fuel and power sector and agriculture, where output grew by 8.7 pct compared with the same period last year, it said. Plans were not fulfilled by the engineering and building ministries, the chemical and timber sectors, rail transport and light industry, it added.