environmental requirement
Siraitia grosvenorii is warm and humid, afraid of frost and not resistant to high temperature. It grows well at 20 ~ 30℃, likes light, but avoids strong light storms. It grows on the hillside or foothills where the drought is not obvious in autumn, the soil is rich in humus, and the leeward is sunny.
Garden construction and planting
According to the requirements of climate and land for the growth and development of Siraitia grosvenorii, the plots suitable for the growth and development of Siraitia grosvenorii were screened out. Pay attention to avoid pine forest land, valley land and land where tuber crops or vegetables have been planted before, so as not to affect their growth. Siraitia grosvenorii seedlings are usually sown in late March, and base fertilizer should be applied before sowing. Siraitia grosvenorii is a dioecious plant, which needs to be planted with male plants. At present, most of them are tissue culture seedlings, which need to be planted at a ratio of 2 ~ 3%. Planting per mu 120 plants. If you lack seedlings, you must make up for them.
Seedling management
After planting, we began to build sheds, using bamboo, wood, wire, etc. It is necessary to build the shed firmly and lay a nylon net on it, and the height of the shed should not exceed 2 meters. When the seedling grows to 15cm, the strong seedling is selected as the main vine, and other seedlings and lateral buds are removed. The main vine is introduced into the shed with bamboo strips. The fruit of Siraitia grosvenorii mainly depends on lateral vines. After the main vine is put on the shed, leave 2-3 lateral branches, and the main vine will fall down. When the lateral branches grow to 10- 12 leaves, topping is carried out for the second time, and the whole branch is fanned out.
Scientific fertilization
The base fertilizer is mainly decomposed organic fertilizer with balanced compound fertilizer. When the seedlings grow to about 20 cm, they should be fertilized again within 10- 15 days. Mainly use available nitrogen fertilizer, combined with the application of Poseidon biological activator in roots. Apply flower-promoting fertilizer before flowering of Siraitia grosvenorii, and spray 1000 times of boron source pool solution 1 ~ 2 times on the surface to promote and strengthen flowering of Siraitia grosvenorii. At the full flowering stage, the main fertilizer for strong fruit is decomposed organic fertilizer solution or high potassium fertilizer containing Poseidon biological root promoter, and the second batch of strong fruit fertilizer is applied half a month later.
hand-pollinate
Siraitia grosvenorii is dioecious, the male flowering period is short and the female flowering period is long, but there is a time difference between the two flowering periods, so most plants can not be pollinated normally and need artificial pollination. The pollen of the male flower can be lightly brushed with a small brush such as a toothbrush, and then the pollen can be scattered on the stigma of the female flower. The stigma of female flowers is sticky at 10 ~ 1 1 in the morning, and the pollination success rate is the highest.
Eliminate pests and diseases
The main pests and diseases of Siraitia grosvenorii include Drosophila melanogaster, anthracnose, powdery mildew, downy mildew, mosaic virus and root-knot nematode. Attention should be paid to prevention, rational drug use and comprehensive prevention.
Harvest is very important.
Siraitia grosvenorii should be harvested in time when it is ripe. Premature picking affects yield and appearance quality; But if the picking is late, the situation will be worse and ulcers may occur. Be careful when picking to avoid damage, the peel should be as smooth as possible, and the color should gradually change from dark green to emerald green.
Siraitia grosvenorii is an excellent crop with high medicinal value and wide application. Now people pay more and more attention to health preservation. It is believed that the demand for Siraitia grosvenorii will be greater in the future, and planting can be considered.