1, the summer heat is divided into three phases: "the first phase of warm air; Second, wait for crickets to live in space; The third waiting eagle began to crow. " In summer, there is no cool wind on the earth, and all the winds carry heat waves; The words describing crickets in The Book of Songs-July are "wild July, in August, house in September, bed in October".

2. Slight summer, the eleventh day of the twenty-four solar terms, is called slight summer when the sun reaches 105 on July 7 or 8 every year; Summer heat, which means hot, is a little hot, not very hot. It means that the weather is getting hotter, but it is not the hottest, and most parts of the country are basically in line with it. Crops all over the country have entered a vigorous growth period, and it is necessary to strengthen field management.