As summer approaches, winter-spring vegetables enter late growth stage while summer crops enter early planting stage. Key management points: strengthen fertilizer and water management for late-stage crops to maximize benefits. Focus on leaf protection and root care; spray leaf fertilizer every 7-10 days. Prevent pests and diseases - disease control cannot be neglected. Temperature control: when minimum temperature stabilizes above 15C, remove grass curtains or stop nighttime covering to prevent excessive night temperatures. Cultivate strong seedlings: high temperatures cause plant legginess. Control soil and watering; timely hill and hoe soil to loosen and aerate.