Symptoms: The iron deficiency of grapes is the chlorosis of young leaves. In addition to the leaves of the upper leaves of the diseased plants, the leaves of the upper leaves remain yellow, but the lower leaves are still green. This is the typical symptom of grape iron deficiency. When the iron deficiency of grapes is serious, the upper leaves appear yellow-white, and even become brown and form leaf necrosis. At this time, the inflorescence also turns pale yellow, the buds fall off, and the fruit setting rate is seriously reduced. Reason: Grape iron deficiency is closely related to soil pH and air permeability. In general, when the soil pH is too high and the soil is alkaline, the iron elements in the soil often turn into insoluble iron that the root system cannot absorb and use. This is related to the excessive viscosity of the soil and the consolidation of the soil.
Measures: (1) Attach importance to soil improvement in the grape shed, increase organic fertilizer, deepen the soil and prevent soil salinization and excessive stickiness. (2) Foliar application of 0.2% ferrous sulfate solution, spraying 1 to 7 days before growth, spraying 3-4 times. In order to enhance the iron absorption of grape leaves, a small amount of vinegar and 0.3% urea solution can be added when ferric sulfate is sprayed, which has a good effect on the promotion of iron absorption, utilization, and green transformation. (3) Utilizing topdressing fertilizer per acre of the United States 4 kg of protein from the United States Pridden + 2 kg of ferrous sulfate, the United States Pridden fish protein can increase soil organic matter, activate soil, increase soil permeability, especially to adjust the soil The pH.
Measures: (1) Attach importance to soil improvement in the grape shed, increase organic fertilizer, deepen the soil and prevent soil salinization and excessive stickiness. (2) Foliar application of 0.2% ferrous sulfate solution, spraying 1 to 7 days before growth, spraying 3-4 times. In order to enhance the iron absorption of grape leaves, a small amount of vinegar and 0.3% urea solution can be added when ferric sulfate is sprayed, which has a good effect on the promotion of iron absorption, utilization, and green transformation. (3) Utilizing topdressing fertilizer per acre of the United States 4 kg of protein from the United States Pridden + 2 kg of ferrous sulfate, the United States Pridden fish protein can increase soil organic matter, activate soil, increase soil permeability, especially to adjust the soil The pH.
We have not only conventional Honey but also organic honey, which have certified by BCS German. The main type is organic polyflora honey, organic acacia honey and organic vitex honey, which come from the northeast of China and Northwest of China. We supply transaction issued by BCS GERMAN for each lot when export.
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