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在番茄主干生长已经衰老,前茬果成熟后,利用预先选好的潜伏芽重新结果,其特点是一次育苗定植可收获两茬果,产量是只收一茬果的2.2~2.8倍,产值亦十分可观。 一、培育健壮的无病苗 1.品种选择 选择生长势强,抗病性和连续坐果性都表现较好的品种,如佳粉15号、中蔬6号等。 2.种子消毒 先用清水浸种3~4小时,然后用10倍的磷酸三钠浸种40~50分钟,用清水洗净在20℃~30℃条件下催芽,约有70%出芽即可播种。营养土选用未种过茄果类蔬菜的园田土7份加腐熟的猪粪3份,再加入磷酸二氢钾1%、过磷酸钙0.5%和50%的多菌灵0.5%,充分混合。 3.苗期管理 幼苗出土后,白天温度保持在20℃~25℃,夜间15℃~20℃,如夜温过低可加盖草帘。当幼苗长到二叶一
The growth of tomato trunk has been aging, the maturity of the former crop, the use of pre-selected potential buds to re-result, which is characterized by a seedling planting can be harvested two crop, the yield is only a crop of fruit 2.2 to 2.8 times the output value Very impressive. First, to cultivate a robust disease-free seed 1. Selection of varieties to choose a strong growth potential, disease resistance and continuous fruit are performed better varieties, such as the best powder 15, No. 6 in vegetables. 2. Seed disinfection first soaking with water for 3 to 4 hours, and then soaked with 10 times the trisodium phosphate 40 to 50 minutes, washed with water at 20 ℃ ~ 30 ℃ under the conditions of germination, about 70% of the germination can be sown. Nutrient soil selection of non-planted solanum vegetable garden soil 7 plus 3 parts of pig manure decomposed, then add 1% potassium dihydrogen phosphate, 0.5% superphosphate and 50% carbendazim 0.5%, well mixed. 3. Seedling management After the excavated young seedlings, the daytime temperature is maintained at 20 ℃ ~ 25 ℃, night 15 ℃ ~ 20 ℃, such as the night temperature is too low can be covered straw curtain. When the seedlings grow to two leaves one