There are many similarities between autumn greenhouse melons and spring greenhouse cultivation, and there are many differences. The climatic characteristics of cultivated melon in autumn are high temperature and rainy in the early stage, and more rainy and less rain in the middle and late period. The temperature is often low in the later stage. This is opposite to the requirement that the temperature in the growing season of melon is low to high, so there are many differences in cultivation measures. The selection of varieties should pay more attention to its early maturity. The cultivation measures should be timely planted in the early stage, control the high temperature and high humidity conditions, prevent the seedlings from growing and pests and diseases; carry out routine management in the middle and late stages; and increase the temperature in the late stage to promote the normal development of the fruit. . Due to the high temperature and drought and pest fall more serious, so the facility to increase shade net, shade gauze and other pest control equipment.

( 1 ) Suitable sowing and management

In the autumn, melon can be grown live or nursed, but in order to facilitate control, seedlings are often concentrated. The seedbed is located in a greenhouse that retains the top shed film (which can be ventilated and rainproof), or a new nursery shed (top cover membrane, ventilated around). Sowing at the right time is very important. Sowing is early, and it is vulnerable to high temperatures and storms. Late is the normal ripening of the fruit. Sowing at the beginning of July is most suitable. The germination and sowing are the same as the cultivation in the greenhouse. It is necessary to pay attention to the fact that the temperature is high and the seeds absorb water and germinate quickly. Therefore, the seed buds are urged to be shorter than the spring, and the seeds are white.

Seedbed management: hot and rainy summer, high temperature seedling susceptible to viral diseases, so the seedbed shade nets have to be tight to reduce aphid spraying rule on the temperature, seedbed four weeks crops and weeds. Seedling post-emergence to strictly control the water to water control seedlings, fast evaporation but in summer, the seedbed can not be too dry, a small amount of water when water seedlings, by foliar application to seedling cultivation, planting seedlings in the longitudinal multi- see direct light, to prevent excessive growth. Cover films rain when it rains. The age of the seedlings in autumn should not be too large, and the seedlings of one leaf and one heart can be planted in 10~15 days.

( 2 ) Colonization

Requirements greenhouses, Fertilizers, soil preparation Zuoqi and spring cultivation is basically the same, here are some of the differences: â‘  Fall high temperature and drought, pests more serious. In addition to the shed film, the roof of the shed is covered with a sunshade net, surrounded by insect-proof nets, making the shed a ventilated, cool and closed small environment, which can greatly reduce various pests and correspondingly reduce the disease. 2 planting seedlings, one leaf and one heart can be planted (not more than 2 leaves and one heart). 3 The same variety of autumn growth potential is not as good as spring, so the plant spacing can be appropriately reduced, such as Jintian No. 1 spring plant spacing is 40 cm, autumn can be reduced to 35 cm.

　　 (3) greenhouse management

Shed temperature management: Before planting , the temperature in the shed should be controlled at about 30 °C. The temperature during the daytime should not be higher than 35 °C, and the temperature should not exceed 20 °C at night . The temperature during the fruit setting is 22~26 °C. After the fruit is set to 30 °C, according to the growth temperature requirements of the melon and the weather conditions, the shade net can be removed in the middle and late cultivation period, the shed film is placed, and the wind is adjusted to adjust the temperature of the shed to meet the growth requirements of melon.

Whole-grained melons: high temperature in summer and autumn, plus greenhouses covered with shade nets, fields with better fertilizer and water conditions can easily cause the branches and leaves of the plants to flourish without melons. Therefore, in order to control the fertilizer and water, it is necessary to pruning the melons in time. Be lower than spring, and try to sit early.

　　 (4) Pest control

The main diseases in autumn include leaf blight, blight, blight, downy mildew, etc.; insect pests are mainly whitehouse whitefly, aphids, and leafminer, and shading nets and insect nets can be used for cultivation measures. Insect nets and sunshade nets have a more evasive effect. Keep the ventilated air in the shed and dry the air, and cut off the excess vines and the non-functional old leaves at the base. Must master the principle of sunny pruning, cloudy and wet, and the wounds caused by pruning often cause the outbreak of blight.

Source of information: Xinjiang Linguo Net