Techniques for high yield and early maturity of tomatoes

When we plant tomatoes, how can we make them mature early and have high yields? Here are some specific tips:

1. Potato juice sprouting

Place potato tubers in a quick freezer for 3 to 5 days, take them out and let them thaw naturally, then squeeze the juice. Soak the tomato seeds to be sown in potato juice for 12 hours. Dip a thick cloth without fluff in potato juice and sprinkle the soaked seeds loosely on it without the seeds touching each other. Cover with polyethylene film to prevent drying, but keep it breathable, and then place it in a warm place. After the seeds germinate, insert them into the soil for seedling cultivation. According to experiments, the above method of germination can make tomatoes mature 15 to 20 days earlier than germination by conventional methods.

2. Horizontal planting of seedlings

Compared with conventional upright cultivation, horizontal planting of tomatoes generally shortens the seedling period by 3 to 5 days, increases the survival rate by 15% to 20%, advances the harvest period by 7 to 10 days, and increases the yield by 20% to 30%. The specific method is: on the basis of fine land preparation and sufficient base fertilizer, make a good ridge in the north-south direction, and the width of the ridge should be based on the mulch film. Then dig a furrow according to the row spacing, about 7 cm deep, and then dig a hole according to the plant spacing, about 5 cm deep. After the hole is made, wipe off 1/3 of the leaves and leaf buds at the base of the seedling, put the seedling along the ditch, put the root into the hole facing south, and the head into the ditch facing north, cover the soil until the leaves are wiped off, and cover the mulch film. When cultivating in a greenhouse, the lower side branches can be cut off to promote root growth. The following two points should be noted when planting tomatoes horizontally: First, tall seedlings should be planted tall and short seedlings should be planted short according to their height, so that they are even on the top and uneven on the bottom; second, the weight of each plant should not be less than 8 grams, the height of the above-ground part of the seedling should be about 10 centimeters, and it should be inclined upward.

3. Spray cow urine on the leaves

Pour fresh cow urine into a sprayer and spray it evenly on both sides of the tomato leaves at noon when the stomata of the leaves are open. This can be done throughout the growth period. Generally, the yield can be increased by more than 18% to 25%. However, it should be noted that the cow urine collected on the same day should be sprayed on the same day; during the fruit-bearing period, it is not advisable to spray cow urine about 10 days before picking the fruit to prevent the fruit surface from being contaminated.

4. Spray chicken and rabbit manure liquid

During the tomato fruiting period, spraying the filtrate of chicken or rabbit manure with a concentration of about 6% directly on the front and back of the leaves can make the tomato fruit expand quickly, mature early, have good quality and high yield. The preparation method of manure liquid is: take 3 kg of dry chicken manure or dry rabbit manure, add 50 kg of clean water, put them together in a wooden barrel or large tile jar, seal them and soak for 6 to 7 days. After sufficient fermentation, stir evenly, filter and remove the residue before use.

5. Press the side vines and remove the main stem

According to the characteristics of tomato stems and vines that can take root, after the peak fruiting period of tomatoes, leave 2 to 3 side branches growing from the bottom of the main stem, bend them to the ground, press them with a layer of fertile soil, and only expose 2 to 3 leaves at the top. After all the side branches are fixed, water them thoroughly. After layering, the temperature of greenhouse cultivation is controlled at 20 to 25 degrees Celsius during the day and 10 to 15 degrees Celsius at night. The soil humidity is maintained at 60% to 70%, and the air humidity is 45% to 55%. After the main stem of tomatoes has withered, immediately cut off the main stem from the upper part of the pressed side branches, and strengthen fertilizer and water management. Generally, the side branches will bloom and bear fruit in about 115 to 20 days.

6. Remove old branches and keep the main stem

On the basis of selecting good varieties, cultivating strong seedlings, planting at a reasonable density, and cultivating fine pipes, the main stem is left after fruiting and the old branches are cut off. The second main stem can sprout again, and the fruit will be more and more, forming a high-yield and long-lived tomato tree. This method not only saves trouble and seeds, but also increases the yield by about 2 times, and the fruiting time is advanced by 15 to 20 days. For tomatoes cultivated in the open field, pay attention to heat preservation and stem protection, and at the same time, add soil and mound to help the plants survive the winter safely.