Detailed Explanation of the Garlic-Ginger Intercropping Model: How to Achieve High Yield and High Efficiency

This model is suitable for irrigated land in autumn-sown garlic areas. Yield per mu: ginger 2500-3000 kg, garlic scapes 400-500 kg, garlic bulbs 800-1000 kg.

Planting arrangement: make beds running east-west, bed width 1 m, plant 4 rows of garlic, intercropped with 2 rows of ginger. Garlic is planted in wide and narrow rows, with wide row spacing of 30 cm, narrow row spacing of 20 cm, and plant spacing of 6-8 cm, planting 33,000-35,000 plants per mu. The 2 rows of ginger are intercropped in the wide rows of the garlic, with row spacing of 50 cm, plant spacing of 12-15 cm, and 8,800-9,500 plants per mu.

Key cultivation points: Apply sufficient basal fertilizer, using 5000 kg of high-quality farmyard manure, 100 kg of calcium superphosphate, and 100 kg of ammonium bicarbonate per mu, then deep plow 30 cm and make beds.

Sow early at the right time. Autumn-sown garlic should be covered with plastic film, and ginger is spring-sown; for both, the suitable sowing time is about 10 days earlier than when grown as a sole crop. Before sowing, select and treat the seeds well. Do a good job of topdressing. For ginger, on the basis of sufficient basal fertilizer, apply topdressing 3 times in combination with watering during the growing period: apply a seedling-promoting fertilizer when the seedlings are around 15 cm tall, using 10 kg of urea per mu; when the plants have 2-3 branches, apply a strong-seedling fertilizer, using 15-20 kg of compound fertilizer per mu; when entering vigorous growth, apply a heavy topdressing, using 40 kg of compound fertilizer per mu. Garlic generally does not need topdressing, but to increase garlic scape yield, about 15 days before harvesting the scapes, apply a scape-promoting fertilizer once, using 10 kg of urea per mu, and at the same time spray the leaves twice with 0.5 urea + 0.3 potassium dihydrogen phosphate.