Hum is one of the three seasons of summer solar terms.

Hum is one of the three seasons in summer (long summer).

Wait for the first time, wait for the earthworm to come out, wait for the melon to be born. Waiting for cricket to sing means that in this solar term, firstly, cricket can be heard singing in the field, then earthworms can be seen digging the ground, and then the vines of melon begin to climb and grow rapidly. The so-called "first time, cricket sings", cricket and mole are also suitable for warm and humid environment, plus the mole's singing, which means that summer is full of flavor.

Waiting for earthworms to grow means more and more rain in summer. Earthworms emerge from the soil and enjoy the humidity. In the hot summer, the moisture of rain gives life to the earth and enables all kinds of creatures to thrive.

The third-class king melon means that summer is coming and everything begins to grow wildly. The vines of melon began to climb and grow rapidly, which is a symbol of vitality in summer. The growth of melon not only represents the prosperity in summer, but also is a gift from nature. Their growth provides people with food and medicine.

Long summer is the seventh solar term in the twenty-four solar terms of the lunar calendar, and it is also the first solar term in summer, which marks the official start of the Xia Meng season and is also the solar term when the sun reaches 45 degrees of the yellow meridian. At this time, in China, there is a custom of "waiting" in the long summer, that is, the solar terms in the long summer are divided into three periods to coordinate with the weather, geographical location and human harmony.

Agricultural activities:

Before and after the long summer, it is the season of transplanting early rice in the north and south of the Yangtze River. Full-moon seedlings can be planted, but full-moon grass can't be planted. At this time, the temperature is still low. Immediately after planting seedlings, we should strengthen management, topdressing early, ploughing early, controlling pests early and promoting development early. Pay close attention to tail sweeping when sowing mid-season rice.

At this time, the spring shoots of tea trees develop fastest. If we ignore them, tea leaves will get old. As the saying goes, "Grain Rain picks less and doesn't pick it in the long summer", so we should concentrate our efforts and harvest it by surprise in batches.

The dry atmosphere and dry soil in North China and Northwest China often seriously affect the normal growth of crops. Especially, the dry hot wind before and after wheat filling and milk ripening is an important disastrous weather that leads to yield reduction, and timely irrigation is the key measure for drought resistance and disaster prevention.