Field management techniques of coriander

Coriander, also known as coriander, is a common seasoning vegetable in our life. Its rich nutrition and spicy taste are loved by people. In order to obtain high yield and improve the quality of coriander, field management is very important. So how should coriander be managed in the field? Let's take a look.

1. Seedling stage management

Coriander can emerge after sowing for about 10 days. If there is heavy rain at emergence, the field soil will harden after the weather clears up, which will affect the emergence of coriander. Therefore, it is necessary to water the soil once in time at this time to maintain the permeability of the soil and make it emerge smoothly. When the coriander grows to 4-5cm, there should be enough space for the seedlings to grow, and the inferior seedlings should be removed and the strong seedlings with uniform growth size should be left, which is beneficial to the homogeneous seedlings.

2. Ploughing and weeding

In addition to inter-seedling management, there is a very important work in seedling management, that is, weeds can lead to poor permeability in the field, grab nutrients from seedlings and affect the growth of seedlings, and weeds are still maintained as hosts, and there are too many weeds. Plants are prone to diseases and insect pests. Therefore, as soon as weeds appear in the field, it is recommended to remove them manually, and if the soil is too sticky or watered improperly, it is very easy to lead to soil hardening and poor root growth and development of coriander, so it is necessary to plough in time. Ploughing in seedlings should not be too deep, so as not to cause damage to the roots.

3. Fertilizer and water management

The growth period of coriander is relatively short, generally fast 40 days, slow then two months can be harvested, so fertilization must be early, in the seedling stage should not be watered too much, once every 3-4 days, but in the growing season to strengthen fertilizer and water management. To often water, keep the soil moist, fertilization is mainly quick-acting fertilizer, combined with watering, can be drenched or applied, in the early stage, 1000 kg of manure per mu or 4 kg of urea is applied 1-2 times. In the later stage, 50-10 kg of compound fertilizer can be applied once a week. In addition, the yield can be significantly increased by applying thin fertilizer once after harvest and spraying gibberellin once before harvest.

4. Pest control

The main diseases and insect pests of parsley are leaf spot and aphids, which affect the yield and quality and the income of farmers. Their control is mainly based on agricultural control, physical control, biological control and chemical control. In the early stage of leaf spot disease, chlorothalonil and carbendazim can be sprayed to control, while when aphids break out, avermectin and imidacloprid can be sprayed.

The above is the coriander field management technology, hope to help you, want to know more related knowledge, please follow us.