Through reasonable and effective fertilization, the yield and quality of eggplant can be improved, the cost can be reduced(seedling trays wholesale), and the economic benefit can be improved. The environmental conditions in the greenhouse are different from those in the open field, and there are also great differences in fertilization methods. Therefore, the greenhouse eggplant should master the following aspects when fertilizing(3.5inch square nursery pots). The growth of seedlings affects the whole growth period of eggplant, especially for flower bud differentiation.(plastic 5 gallon nursery pots bulk in canada)
Generally, the water is poured once(plastic nursery pots), and the 9m2 seedbed can be applied with 200kg of sifted organic fertilizer, 0.5kg of superphosphate and potassium sulfate; when the seedling grows to 4~5 true leaves, if the lower leaves are lighter, the leaves can be Spray 0.1% to 0.2% potassium dihydrogen phosphate or urea on the surface to ensure the cultivation of strong seedlings. The growth of eggplant is long and the roots are deep and leafy(4.5inch square nursery pots). It is a vegetable that needs more fertilizer and is more resistant to fertilizer.
If the greenhouse is covered with plastic film, most of the fertilizer should be applied as a base fertilizer(plastic nursery pots manufacturers). The amount of fertilization required for the old shed and the new shed is different. The old shed has more nutrients remaining in the soil of the new shed, and the new shed has more fertilization than the old shed. Most of the old shed soil has excess nitrogen, rich phosphate fertilizer, and insufficient potassium fertilizer(4.5inch deep square pots). The new shed can apply 6000kg of organic fertilizer per acre (667m2).
(plastic 5 gallon nursery pots bulk in canada)At this time, the second top dressing is carried out, that is, the fruit fertilizer(15 gallon nursery pots). Can be divided into fruit fertilizer, Shengguo fertilizer, Mantianxing fertilizer and root dressing. If it is an old shed, it can reduce the amount of fertilizer applied, and add 20kg~30kg of potassium sulfate. The biological bacterial fertilizer not only contains a large number of nitrogen-fixing, phosphorus-dissolving and potassium-dissolving active bacteria(1 gallon nursery pots), but also contains organic matter, humic acid and trace elements.
According to the eggplant growth period, it is important to note that the organic fertilizer must be fully decomposed(nursery pots wholesale). This will not only reduce the loss of nutrients, but also completely eliminate the harmful substances such as pathogens and eggs in the organic fertilizer. Eggplant topdressing should be based on quick-acting nitrogen fertilizer, combined with phosphorus and potassium fertilizer, and appropriate amount of biological fertilizer(2 gallon nursery pots). Therefore, applying base fertilizer is the basis of high yield.
We can't check the watering of the day, and produce eggplant in the greenhouse(black plastic nursery pots). When the “door eggplant” reaches the “eye-opening period”, the whole plant enters the fruit growth period. The stems and leaves also began to grow vigorously, requiring an increase in fertilizer. The first top dressing, called the fruit fertilizer, is the key fertilization period. The amount of fruit fertilizer can be used, 30kg~40kg of ammonium sulfate per acre(3 gallon nursery pots), or 15kg~20kg of urea, applied by acupoints or ditch, covered with soil and watered after application.(plastic 5 gallon nursery pots bulk in canada)
The main effect is nitrogen fertilizer(2.5inch square nursery pots), combined with phosphorus and potassium fertilizer, and attention should be paid to the application of medium and trace element fertilizers such as calcium, boron and zinc. Generally combined with watering, each mu can be applied to 1000 kg of decomposed dilute urine or 20 kg to 30 kg of diammonium phosphate. After the second top dressing and 10 days before the last harvest, when each layer of fruit begins to expand, the fat is chased every 10 days or so(5 gallon nursery pots bulk), and it is chased 5 to 6 times.