Effects of Soybean Density and Sowing Time on the Yield and the Quality of Mixed Silage in Corn-Soybean Strip Intercropping System

Intercropping is a cropping strategy that makes efficient use of space, nutrients, and soil. A 2-year field trial was conducted in 2019 2020 to study the effects different soybean sowing times (9 days before corn (ST1), 0 at (ST2), 9 after (ST3), respectively) densities (120,000 plants ha−1 (PD1), 150,000 (PD2), 180,000 (PD3), respectively, planting density 60,000 constantly) on total yield mixed silage quality corn-soybean strip intercropping system. The decreased with an increase density. Before ensiling, dry matter (DM) content increased density, while crude protein time. interaction × time significant for neutral detergent fiber water-soluble carbohydrate (WSC) content. After WSC PD2ST3 (4.90% DM) highest. PD1 (4.51%) had higher ammonia–nitrogen nitrogen than PD2 PD3. lactic acid (3.14% In general, better were obtained when sown sowing.