1. intertillage and soil cultivation: after transplanting, use a shallow hoe to conserve moisture. When the height of seedlings is 25-30cm, a few branches will appear. The soil will be taken out from the furrow and cultivated at the bottom of the plant to promote adventitious roots, prevent lodging and inhibit the growth of weeds under the film.
2. Water: water according to the soil moisture after soil cultivation, and the amount of water should not be too large each time to keep the soil dry and wet.
3. Top dressing outside the root: Top dressing outside the root should be carried out when the flowers are in full bloom, and the spraying time should be after 6 pm, and 30g of urea and 30g of potassium dihydrogen phosphate should be sprayed every 667 square meters.
4. Pest control: Marigold has fewer pests and diseases, mainly virus disease, Fusarium wilt and red spider. Viral diseases are controlled by virulence and bacterial toxins, and Fusarium wilt is controlled by 75% chlorothalonil, carbendazim, ethyl phosphate and thiophanate-methyl; In order to control red spider early, 40% omethoate 1000- 1500 times or 50% malathion EC 1000 times was sprayed every 7 days, twice in a row.