1, suitable for sowing. In Jinan, the sowing date is appropriate in mid-August. Planting will be carried out in mid-September. It will be harvested in mid-October and will be picked up in mid-February and will be harvested for 120 days.
2, species selection. Should choose strong anti-virus disease ability, female flowers, precocious varieties of high sitting rate, such as the early Qing generation, Shuangfeng special early, Jieyi small ballet, the French fiber and so on.
3, nurturing strong seedlings. The key to cultivating strong seedlings in autumn and winter is to use shade nets to cover seedlings, which can effectively reduce the incidence of viral diseases. Autumn and winter cockles are generally not grafted courgette cultivation, the use of nutritious clam seedlings, specifications for 10 cm 10 cm 10 cm, the proportion of nutrition soil preparation with the overwintering clams. Before sowing, the land was high-dry and the seedlings were placed in a ventilated place. The bed was 1.2 meters wide, and the depth was 10 centimeters. After the soil was placed, the soil was poured with water. Seed germination after soaking. After sowing, the arches cover the shade net and the arches should be higher than 60 cm. The seedlings began to unearth, and the buried sunshade nets were split off at night to promote air circulation in the shed and reduce the temperature. With the growth of seedlings, the height of the shade nets should be gradually increased. Afterwards, it is necessary to strengthen the control of aphids and whitefly. The first true leaf should be sprayed twice to increase the resistance of 100 times the liquid to prevent the virus disease; if the weather is dry, it can be sprayed with sprayer to the shade net before and after noon to increase the seedbed temperature and lower the night temperature. Days reduce the incidence.
4, planting and management. Due to the higher temperature at seedling stage, the suitable seedling age is 25 days. In mid-September, the temperature is very suitable for planting and easing seedlings. The natural climate is suitable for the growth and development of summer squash after slow seedlings until mid-October. Autumn and winter courgette must use organic fertilizer, basal fertilizer, basal fertilizer, quantity and fertilization method should be the same as wintering cockroach. In order to facilitate watering in winter, it manages and picks up the crops and their style. The method of colonization can be the same as that of overwintering alfalfa; in order to increase the yield in the earlier period and increase the economic efficiency, the density can be slightly larger than the overwintering alfalfa, which is about 2500 per mu. In order to promote easing of seedlings, the mulch film shall be timely covered after planting; In early October, a large greenhouse membrane is used, and the temperature inside the greenhouse is maintained at 10-12 degrees at night. The temperature of the greenhouse is adjusted by the size of the vents. In mid-October, we must take good care of the grass seedlings. When the minimum temperature in the tent is below 10 degrees, cover it at night. The grass cover will be covered early in the evening and the ventilation will be strengthened during the day to reduce the humidity in the tent and control the leggy. When the second female flower is opened, it is necessary to conduct artificial auxiliary pollination in time, and it is better to perform hormone coating. The melon strips must be harvested in time to meet the commodity standards, so as to prevent attachment of the melons. This stage can be sprayed with a 83 activator and two photosynthetic fertilizers, and strengthen the control of whitefly, aphids and powdery mildew.
5, management of the melon period. Zucchini during the guacamole period should be appropriately increased, 24-28 degrees during the day, 12-14 degrees at night, to make full use of sunny weather, early uncovering late cover grass rake, increase visibility time, improve lighting conditions in the shed, improve photosynthetic efficacy. However, before the arrival of the winter, the night temperature should be appropriately and gradually reduced, double-layered coverage should be implemented, and the temperature index should be disclosed in strict accordance with the temperature index. In mid-to late October, if there is a lack of sensibility, it should be selected to be poured on sunny days and be carried out. After the extra-root fertilizer, in late November or early December, before the arrival of deep winter, sunny days should be selected for timely top dressing and watering. The method and amount of fertilizer should be cultivated with overwintering. It is necessary to adhere to hormone coating, hanging vines, and plant adjustments; and to strengthen prevention and control of gray mold.

Liquid Silicone Adjuvant

Silicone Surfactant,Liquid Silicone Adjuvant,Organo Silicone,Agro Spread Adjuvant

Jiangxi Tiansheng New Materials Co.,Ltd , http://www.jxtsxcl.com