The vine is weak how to return a responsibility
1, compaction, high underground water level, orchard planting.
If all of the above three, grape root will surely not good, so the absorption of root quality is relatively poor, poor quality and nutrient reserves.In the second year of nutrient, inadequate reserves of the entire orchard grape growing won't.
2, due to illness, insect, caused by deficiency of root for.
Because of illness: the most common type of grape rootstock part disease, the first is the generalized root rot the second root cancer.Root cancer is a bacterial disease, the main symptom is formed in the rhizome part bigger like a tumor of the material.Root rot is the root for infection of various diseases, root black, grey, capillary root rot disappear a lot.There are root knot nematodes, whole root, like pearls, a string of the fine root greatly small many small spherical material.
Because of bug: first aphid root nodules are more common in the north.Orchard aphid root nodules if there are problems, general spring germination when the blades will be yellow.The second is the grubs, wireworm, cutworms, especially with a lot of no rotten cow dung, sheep dung, in particular, inside the fiber content is higher, the easiest way to breed these pests.
Because of the deficiency: deficiency of root is the greatest influence of calcium deficiency.If the calcium deficiency, we dig the root, basic can't see anything else I can do for roughly, see can find capillary root are too short, too thick, too thin.These are caused by calcium deficiency, seemingly roots are ok, but the capillary absorption root quality is poor.
