How to break the dormancy of papaya seedlings and advance flower bud germination? Do the following
Temperature control facilities: to build a solar greenhouse, it is best to have warming facilities. The greenhouse is equipped with a small arch shed, the surface of the shed is made of polyvinyl chloride drip-free film, and the film is covered with a 5cm thick hand-pulled straw curtain.
Seedlings in the pot into the shed: papaya seedlings in July to August flower buds have differentiated, in early December can take the soil on the pot planting. Before the pot, the seedlings are necessary to shape and trim, cut the dense branches, insect branches, cross branches, long branches around, overlapping branches, and other branches that affect the shape of the tree, and pay attention to the cultivation of the backbone branches and transitional branches, so that the skeleton is beautiful, the branches are excessively natural, and then enter the sun temperature shed for heating treatment.
Flower promotion: Keep a certain air humidity and temperature in the early stage of the solar greenhouse, and cover the straw curtain for cold protection and warmth. One month before the Spring Festival, the solar greenhouse is gradually heated to promote flowers, the day temperature is 18℃ ~ 25℃, the initial temperature is 10℃ ~ 15℃. When the temperature is high, open the tuyere for ventilation to keep the air clean, circulating and fresh, and the temperature of the shed is relatively stable.