Grafting and nursery is generally selected in the middle of the greenhouse, the size of the area depends on the number of nursery, the temperature and humidity in the greenhouse must be guaranteed, and grafting and grafting should be followed by a short period of shading. The best conditions for the use of soilless plug seedlings, racks The bed should be 50 cm from the ground.
There are two types of plug trays to be prepared, one is a 50-hole seed sown, and the other is a 72-hole seed sow. The substrate is made of turf carbon and vermiculite, and the two are mixed with the appropriate amount of nutrient solution 2:1, packed and compacted, leaving 0.5 cm thick covering vermiculite, and at the same time, ready for grafting clips and blades.
Grafting methods vary according to sowing time. Plug in, you must first broadcast pumpkin seeds, rootstock seedlings to be larger, over 3 to 4 days and then broadcast cucumber. Using the method of docking, the size of the two seedlings should be the same. The cucumber should be sown first, and the pumpkin must be sown five days later. Seeds soaked seeds per hole, dry seeds 2 per hole. After sowing, cover the stone, fill the water and cover the film. Pay attention to supplement water later to keep the matrix moist.
By connection method: the scion seedling grows to the first true leaf and the rootstock cotyledons fully expand, and grafting is the most appropriate. Before the grafting, insert the arch shed, drown the ground and cover the shade. Graft the first step, pick up the rootstock seedlings, dig out the growth point, and make a cut at a right angle of 0.5 to 1 centimeter from the cotyledon at a 30 to 40 degree angle, cut the embryonic axis to 2/3, scion in the cotyledons In the next 1 to 1.2 centimeters, cut into 20 to 30 degrees and 0.7 to 1 centimeter obliquely, and go deep into 3/5 of the hypocotyl. In the second step, insert the two shoe clasps into each other, be sure to align them and insert them into a pre-prepared arch shed.
After shading, shading, heat preservation and moisturizing, the air humidity in the arch shed is about 95%. Generally, the cover can be gradually removed after 7 days. The temperature is controlled at about 18° C. at night and about 25° C. to 28° C. during the day. The leaf is sprayed with Dubangkelu. 600 times liquid, prevent disease, generally under 18 to 22 days to plant.
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