Abstract:

This experiment was conducted to study and explore a vegetable soilless substrate with the source which is abundant, economical and with good quality. Orthogonal design was employed. Tea mushroom residue, straw mushroom residue, clay mineral and other materials were used as raw materials to make up substrate for vegetable plug transplant production. The results showed that the substrate with different formulations made significant effects on tomato emergency rate, seedling index of both tomato and broccoli, but not broccoli emergency rate. The No.8 [made up with tea mushroom residue 0.4 (V/V), straw mushroom residue 0.35 (V/V), perlite 0.1 (V/V) and clay mineral 0.15 (V/V)], which was screened from nine formulations, was most appropriate for tomato and broccoli plug transplant production. The emergency rate of tomato and broccoli were highest and the seedling index, pH and conductivity were moderate in No.8 substrate.