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Greenhouse tomato spray fertilizer
According to the growth period of tomato selection of foliar fertilizer results of early plant growth is relatively strong, easy to grow long, should be used to control the growth of leaf and stem nutrients, such as potassium dihydrogen phosphate, compound fertilizer. At the beginning of the results, the growth of the plants began to weaken, and leaf nutrients that promote the growth of stems and leaves should be used to promote the protection of the leaves, such as spray-applied treasure and strong sources. According to the weather, when the leaf fertilizer is cloudy, the photosynthesis is poor, and the supply of tomato sugar is easy to be insufficient. At this time, the foliar fertilizer has better effect of adding sugar. Timely spray calcium fertilizer tomato more calcium, calcium deficiency susceptible to umbilical rot. Therefore, calcium fertilizer should be sprayed more during the tomato fruiting period, and the interval should be 5 to 7 days. Spraying foliar fertilizers should be combined with disease prevention and foliar spraying, and should be combined with pest control to reduce the number of spraying and reduce the humidity in the greenhouse. Spray foliar fertilizer spraying foliar fertilizer on the back of the leaf to the main, because the tomato stomatal more on the back of the leaf, so that the absorption rate is high. When foliar fertilizer is applied to the foliar application of shrubs, excessive fertilizer should be rinsed off with clean water, and the water content of the leaf should be increased to reduce the damage of the leaf. When the soil moisture content is insufficient, it should be watered to increase the water content of the plant body and reduce the concentration of fertilizer solution in the stems and leaves.