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Detailed Explanation of Garlic Cultivation Systems and Cultivation Seasons
For autumn-sown garlic, rice, corn, sorghum, wheat, beans, cucurbits, tomatoes, and potatoes are good preceding crops; for spring-sown garlic, autumn snap beans, pumpkins, solanaceous vegetables, cotton, and legumes are preferable. Garlic requires large amounts of fertilizer during its growth period, and garlic roots can secrete substances with a certain bactericidal effect, so it is also an ideal preceding crop for other vegetables. At the same time, it can also be intercropped and relay-cropped with corn, cotton, medicinal herbs, and various vegetables. In Northeast and Northwest China, garlic is mainly grown as a sole crop; in North China, the customary practice is intercropping and relay cropping with other vegetables and grain crops.