First, the fine site preparation
Carrots are root vegetables, like the deep loose soil. The site preparation should be deep plowing and the depth should be no less than 30 cm. To achieve intensive cultivation, the soil is finely crushed, the ground is smooth, and the sensation is good. It is best to form a 2 to 2.5 meter wide ravioli to facilitate irrigation and drainage.
Second, the application of basic fertilizer
In order to prevent the burning of organic fertilizers, it is necessary to fully decompose and crush the organic fertilizers before the fertilization. In combination with site preparation, 2500-3000 kg of organic fertilizer and 50-80 kg of ternary compound fertilizer will be applied per acre.
Third, control of underground pests
In order to prevent and control the harmfulness of underground pests, appropriate amounts of pesticides are incorporated into organic fertilizers, which have a good effect on preservation of seedlings.
Fourth, seed processing
The bristles on the dried seeds are first skimmed to facilitate the close contact of the seeds with the soil. Before sowing, the seeds were soaked in hot water at 40°C for 30 minutes, then cold water was added to bring the water temperature down to 20°C to 25°C, soaked for 24 hours, and the seeds were fully absorbed and then removed for germination. The suitable temperature for germination is 20°C to 25°C. When more than half of the seeds are exposed, the seeds are sown promptly. Tests have shown that seeds can be seeded 2 to 5 days earlier and seedlings 6.4% to 9.6% more.
Fifth, chemical weeding
The timely application of pre-emergent herbicides after sowing of the cover soil not only eliminates a large amount of labor for manual weeding, but also has a good weeding effect. It is possible to use herbicides such as Li Gulong, Shi Tianbu, and Napropamide, which are safe for carrots and have a good weed control effect. Each herbicide emulsifiable concentrate emulsion 100 ~ 150 ml, 60 ~ 80 kg of water, evenly spraying the ground, control of weeds more than 95%.
Sixth, cover grass seedlings
After spraying the herbicide, evenly cover a layer of short wheat straw with a thickness of 2 to 3 cm on the surface of the crop. This will not only prevent the soil from being hardened due to heavy rain and affect the emergence of the seedlings, but also protect the seedlings from sun rays and protect the crops to prevent the seeds from drying out. Good results.
18Mm Utility Knife,Auto-Lock Utility Knife Cutter,Professional 18Mm Utility Knife,Stainless Steel Utility Knife
Shangqiu City Huashang Zhiyuan Tools Co., Ltd. , https://www.hszytools.com