Recently, some fruit farmers have reported that his peach orchard has five or six trees. He is 6 years old. In spring, there is a phenomenon of “less blossoming, yellow bark, and death after floweringâ€. The trunk and roots are blackened. I do not know how?
After further communication with the fruit farmers, the author believes that the fruit grower may be doing something wrong in the following aspects, or there are misunderstandings, resulting in this phenomenon of peach trees. First, nitrogen, phosphorus, and potassium are not suitable for fertilization. It is well-known that the fertilizer requirement for nitrogen, phosphorus and potassium in peach trees is 2:1:2, but if it is like wheat, use high nitrogen and phosphorus low potassium, or blindly apply a certain amount of diammonium phosphate. The phosphorus element will not only produce a certain degree of antagonism to the nitrogen in the soil, but also cause soil compaction and damage to the soil permeability. The lack of potassium will lead to a decline in tree disease resistance, resulting in root rot, dry rot, rot and other diseases and branches and diseases in the trunk and take advantage of development, development, become one of the main reasons for dead trees. The second is the application of unfermented and fermented manure, livestock, and poultry manure, the so-called "produced manure," which directly causes the infection of roots and the burning of roots, roots and roots. In particular, chicken manure is generally difficult to ferment without proper technical measures. Third, over-application of ammonium bicarbonate or other quick-impact top-dressing that is prone to root-burning and fertilizer damage, large amounts of application, uneven distribution, and excessive application of a single trace element (ferrous sulfate, etc.), also to varying degrees Caused some burnt roots, red leaves, and fallen leaves. Fourth, root rot, dry rot, rot and other soil-borne diseases and branch diseases are serious and cannot be promptly removed. The trunks are found and the roots of the trees are dark, indicating that they have entered the late stage of disease, that is, they are also treated as a disease. It was late.
In fact, there are also many people who have the same experience with this friend. The similar lesson is similar to that of Yuan Zuochen, a fruit farmer in the former Luozhuang Village in Gudai County, Weidai County. Lao Yuan has 5 acres of pear trees, more than 150 trees, 20 years old, due to the above misunderstanding in the operation, to the autumn after last year, 7 trees have died very unfortunately, and there are still 20 yellow, thin, sick, weak The tree is in a state of "half death." With the help of the author, at the end of November of last year, in addition to the application of peroxyacetic acid to some branch diseases, half of the trees (10 trees) were also rich in nitrogen, phosphorus, and potassium (10:10). : 35) and 55% of trace elements in calcium, boron, magnesium, copper, iron, zinc, sulfur, manganese, etc. Eurasian high-concentrated multi-functional high-quality water-soluble fertilizer, 500 grams per tree, and in addition to root rot , dry rot, rot disease has good effect of 21% peracetic acid aqueous solution 200 ml, mixed with water 20 kilograms, in each tree canopy projection range uniformly digging small pits, pit depth 16 to 20 cm , watering by pits, covering with water after seepage. By the end of June this year, Yuan Zuochen reported that the 10 trees that were irrigated had basically resumed normal growth. Currently, the leaves are dark green and grow gratifying, which is in stark contrast to non-irrigation. For this reason, he decided on the spot and used the same methods as above to water the remaining 10 trees.
Cable Reel,Water Hose Reel,Water Hose Cable Reel,Commercial Water Hose Reel
NINGBO QIKAI ENVIRONMENTAL TECHNOLOGY CO.,LTD , https://www.water-hose-reel.com