“My greenhouse cucumber is in the mid-growth phase. The first time I ran through chicken manure, I felt very good. After three consecutive rinsings, the cucumber leaves were yellow and the growth was slow. You can explain it to the cricket and explain it. ?? On March 1, the reporter received a call from the master Zhang Wanchang of Sunjiaji Street in Shouguang City.
Recently, when reporters interviewed in vegetable growing areas such as Luocheng Street in Shouguang City, they also heard similar situations: Most vegetables are in the fruiting period, and some vegetable farmers have chosen to continuously use chicken manure instead of red fertilizer. However, after several times of continuous flushing, many shiny leafy leaves of vegetable oil became yellow leaves, which seriously affected the yield and quality of vegetables.
Chicken manure, because of its high content of organic matter and nutrients, is often used as top dressing in agricultural production. But why shouldn't vegetables be washed continuously with chicken manure during fruit set-up?
First of all, it comes from the nutritional form of chicken manure. Because chicken manure is rich in organic matter and nitrogen, its potassium is lacking, and the amount of potash fertilizer required by vegetables during the period of production is significantly higher than that of nitrogen fertilizer. Continuous use of chicken manure will inevitably result in the lack of potash fertilizer, which will lead to the occurrence of vegetable yellow leaves and malformed melons. , thus affecting the overall output.
Secondly, continuous use can easily cause ammonia damage or root burning problems. It can also easily cause the spread of underground pests and adversely affect root growth. The chicken manure used by vegetable farmers is simply covered with a film and then used in the shed before buying. Such a short period of time cannot be fully decomposed, and the ammonia formed after continuous flushing and application is likely to cause ammonia damage. At the same time, the organic matter in the chicken manure decomposes in the soil and generates a lot of heat and organic acids. These substances can burn the root system and cause great damage to the root hairs that take up the absorption. And after flushing with chicken manure, the mantle will also significantly increase, affecting the normal growth of the root system.
In addition, chicken manure is viscous, and it is continuously used to seal off the ground, which can easily reduce the permeability of the soil and affect the growth and development of the root system. In severe cases, it can also lead to the death of roots due to the lack of oxygen in the suffocation of the root system.
Therefore, the reporter recommended that: When the vegetable manure flushing chicken manure, must not be used alone, should be combined with potassium dihydrogen phosphate or potassium sulfate compound fertilizer and other high-potassium fertilizers used in combination, to avoid the occurrence of potassium deficiency, generally Mu can be used around 300 pounds of chicken manure and mix 30 to 50 pounds of compound fertilizer each time. Or, after the application of chicken manure for 1 to 2 times, the use of chicken manure is stopped and the water is replaced by water. In this way, adverse effects can also be avoided.
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