NGHIÊN CỨU ẢNH HƯỞNG CỦA LIỀU LƯỢNG PHÂN HỮU CƠ VI SINH SÔNG GIANH ĐẾN SINH TRƯỞNG, PHÁT TRIỂN VÀ NĂNG SUẤT CỦA GIỐNG LÚA JAPONICA ĐS3 TRONG VỤ XUÂN 2020 TẠI HUYỆN HOẰNG HOÁ, TỈNH THANH HÓA
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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.
Keywords: Intensive techniques, microbial organic fertilizer, Japonica ĐS3 rice variety.