First, soilless cultivation of leeks
1, the cultivation of leeks
a. Use a flowerpot or wooden trough with a depth of 18-20cm to install a 1-2cm river sand. The river sand should be washed clean to avoid bacteria.
b. Select the root of leeks in open field for more than two years, cut the old roots and leaves, and then insert the shortened stalk roots into the pots or wooden troughs.
c. At the time of insertion, 3-4 strains are one row. The distance is 3.3cm. After planting, they are irrigated (every 1 day). After the new larvae grow, they are poured with nutrient solution (every 1 day). 1 time).
d. Pour water and nutrient solution every 1-2 days in spring, summer, and autumn, and water and nutrient solution every 3-4 days in winter.
e, rainy days, afternoons, nights do not feed nutrient solution, for the yellow leaves are more nutrient solution, black leaves less nutrient solution.
2, nutrient solution formula
15 g of urea, 2.25 g of potassium dihydrogen phosphate, 15 kg of water, and 1.5 m2 of water.
Second, cucumber soilless cultivation of new technologies
a. The soilless cultivation of cucumbers does not require seedlings, so large seedlings can be transplanted and the total yield will be improved.
b. After cucumbers are transplanted, they are tied with wooden sticks, leaving only one main vine and 1-2 side vines.
c. Topping at the upper end of the melon with 5-6 leaves.
d. The seedlings can be bred in the vigorous stage of cucumber.
e. Cucumbers can be eliminated after a fruitful period. In addition, cucumber seedlings that are cultivated in advance can be used to make the cucumbers grow vigorously and produce more cucumber seedlings.
Third, watermelon soilless cultivation of new technologies
a, watermelon soilless cultivation: with early maturity, high yield, good varieties, high economic benefits.
b. Porcelain basins or plastic bags with a diameter of 30 cm and a height of 45 cm, a 15 cm thick pebble block at the bottom, and 8 to 90% of a clean river sand at the top, will be used to sow watermelon seeds in river sand.
c. Broadcast 1-2 tablets per pot, and finally leave a strong seedling.
d, transplanting seedlings began to nurse after the survival of nutrient solution, the amount of 200-500g per plant, the upper and the afternoon application time, the seedling period can reduce the amount of high temperature, strong light can be added once at noon.
e. Watermelon can only retain one main vine or one main vine on each side of the plant, and 1-2 melons on each plant, leaving 7-8 leaf topping in front of the melon.
2, the formula of nutrient solution
Urea 15g (or ammonium sulfate 33g), calcium nitrate 5-10g, potassium dihydrogen phosphate and magnesium sulfate 3.5-4g, calcium chloride 1.8g, ferric chloride 0.35-0.4g, borax 5.6g, manganese sulfate, copper sulfate Each 1.5 g of zinc sulfate, the nutritional solution ph value of 5.5-6.
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