STUDYING ON THE EFFECT OF DOSES OF SONG GIANH MICROBIAL ORGANIC FERTILIZER ON GROWTH, DEVELOPMENT AND PRODUCTIVITY OF JAPONICA ĐS3 RICE VARIETY IN SPRING SEASEON 2020 IN HOANG HOA DISTRICT, THANH HOA PROVINCE

Abstract

The study was conducted with the aim of studying on the effects of doses of Song Gianh microbial organic fertilizer on the growth, development and productivity of Japonica ĐS3 rice variety in Spring 2020 in Hoang Hoa - Thanh Hoa. Four treatments were constructed, following the randomized complete block (RCB) design. The area of each treatment was 20 m² (5 x 4m) and the total experiment area was 240 m² (excluding the area of barrier and protection). The results indicated that with a dose of 1.0 tons Song Gianh microbiological organic fertilizer (treatment 2), the real productivity was 7.32 tons/ha and the economic efficiency was highest at a significance probability level with LSD0.05 = 0.38 tons/ha.