The yield of maize-soybean intercropping on Mycorrhizal inoculation treatment and plant nutrition provision in suboptimal land North Lombok, Indonesia

Mycorrhizal inoculation and plant nutrition have an important role in increasing the yield of maize-soybean intercropping in suboptimal land. The experimental design used was a factorial randomized block design with two factors, the first factor was AMF inoculation which consisted of two levels, namely M0 = without AMF inoculation and M1 = with AMF inoculation, and the second factor was plant nutrition treatment. with four levels, namely U0 = without the addition of nutrients, U1 = with the addition of 100% dose of inorganic fertilizer (maize = urea 300 kg ha-1 and Phonska 200 kg ha-1, soybean = 60 kg ha-1 Urea and 120 kg ha-1 Phonska), U2 = with the addition of 100% dose of cattle manure and U3 = with the addition of 50% dose of cattle manure (6 t ha-1) plus 50% dose of inorganic fertilizer (maize = urea 150 kg ha-1 and Phonska 100 kg ha-1, soybean= 30 kg ha-1 Urea and 60 kg ha-1 Phonska). The results showed that AMF inoculation treatment and application of 50% inorganic fertilizer plus 50% organic fertilizer gave the highest yield with maize grain weight of 4.3 tons ha-1 and soybean grain weight of 0.5 tons ha-1.