In the process of planting amaranth, we often encounter disease problems. Among the many pests and diseases of amaranth, it is definitely the “number one killer†for amaranth planting. Once it appears, it is difficult to cure it. If the prevention is not timely or improper measures are taken, Lightly, it causes the lack of seedlings and ridges of leeks, and the ruthless results of direct granules. Is it really awkward to take it? The following small series will tell you about the prevention and treatment of cockroaches.
In the past, vegetable farmers have mainly adopted methods of spraying and rooting with highly toxic pesticides. However, it has been planted in years and drugs for years, and it has gradually made certain resistance to pesticides, which has greatly reduced the efficacy. In order to obtain the therapeutic effect, the vegetable farmers are often forced to increase the dosage of medicines year by year, which causes the pesticide residues in the leek to exceed the standard excessively, and greatly reduces the yield and quality of the leek, and also poses serious risks to the food safety of consumers. .
Nowadays, people love and hate the fresh and delicious leeks, and even talk about the ochre change: they don’t dare to eat if they want to eat, and they don’t dare to plant if they want to grow.
Then, in the process of planting amaranth, is there a more green, economical and efficient method of controlling cockroaches than drugs and roots?
Here is an introduction to the management technology of ecological control cockroaches: sun drying high temperature film removal method!
The high-temperature coating and smashing technology of sun-drying is aimed at the high temperature resistance of éŸè›†, laying a transparent and non-drip film on the amaranth floor, allowing direct sunlight to the film, and improving the temperature of the soil under the film (under the film at 70 ° C, underground) 5-7 cm temperature can still reach 40 ° C or more), when the temperature of the soil where the larvae are located exceeds 40 ° C, and lasts for more than 3 hours, the cockroach can be completely killed.
Adopting the high-temperature coating and removing technology of sun-drying, the film can be seen immediately after the film is removed on the same day. It is faster, more environmentally friendly and more effective than the medicine and root filling. It can not only reduce the cost of amaranth cultivation, but also improve the quality of amaranth. Let the leeks sell for a higher price!
Before the film is covered, the vegetable grower can combine the growth of the amaranth: the growth of the leek is sparse, and the roots and soil of the leek can be seen. The amaranth can be cut without a cut, and a 30-cm-high arch shed can be directly placed on the ground, and then covered on the shed; The leek grows vigorously. In order to prevent the leaves of the leek from being shaded and affecting the warming of the sun, the leek can be cut off within a day or two before the film is covered. The leek is the same as the ground.
According to the vegetable farmer's test, the roots of the amaranth after the film treatment are not damaged, and new leaves can be grown in a week or so. However, compared with the untreated leeks, the growth of leeks in the early stage was slow after the mulching treatment, and the growth rate was accelerated in the later stage, and returned to normal after 20 days.
The use of high-temperature coating and sun-drying technology can be carried out before the end of May, so as not to affect the rooting of amaranth, and the leeks harvested in summer can be cut and killed at any time.
The above is the management technology of ecological prevention and control of Xiaonong.com: Sun-heating and high-temperature film removal method! What do you think? If you want to know more about agricultural technology, please pay attention to the Hui Nong School!
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