The effect of the nitrogen in the soil and strains of Rhizobium that affect the growth and nitrogen fixation in soybean Mark E for 292 aims to study the effects of nitrogen affecting nitrogen fixation. The rhizobia and nodule caused by soy. Bradyrhizobiumjaponicum species The experimental design was 3x4 factorial experiment in complete randomized design (CRD) 3 repeat factor 1, a mixed infection of Rhizobium three types: 1) Do not mix with bacteria Rhizobium 2) B.japonicum SB1 3) B.japonicum. SB2 second factor is the rate of nitrogen four levels: 1) 0 kg / rai 2) 5 kg / rai 3) 10 kg / rai 4) 20 kg / rai tested with soybeans in May and 292 plastic pots in the greenhouse. The results showed that
การแปล กรุณารอสักครู่..