Land selection and soil preparation: Lysimachia christinae can also be planted in dry land suitable for crop growth, but sandy neutral loam is preferred. On the selected plot, spread 4000 kg of decomposed manure and 50 kg of compound fertilizer per mu, plow and rake to make a ridge with a width of 2 meters, with a ridge in the middle and a width of 30 cm ×30 cm. ?

2. Seedling raising and field planting. Lysimachia edulis has strong stress resistance and strong vitality, and is easy to carry out cutting seedling raising and cultivation management. Seed propagation can also be used, but cuttage is generally used to raise seedlings, which can be carried out in greenhouse in spring, summer, early autumn and winter. ?

(1) Seeding and seedling raising: it will be carried out from late March to late April, with 50 grams of seeds per mu and 80 square meters of seedbed area. The width and length of the seedbed are 1.5m× 20m. First, water the whole seedbed to make it permeable. When the seeds are wet, spread them evenly. Then cover with 0.5cm fine soil, and build a plastic arch shed to keep warm and moist. When the temperature reaches 35℃ in the daytime, it needs ventilation to cool down, and all seedlings will emerge in 15-20 days. When the seedlings grow to 5cm high, weeding will be combined with intertillage, and occasionally fine seedlings will be removed. It can be transplanted in about 120 days. ?

(2) Cutting seedling: select the plot with high terrain, dry and good drainage, select the middle and rear plot for greenhouse cutting, and spread clean screened river sand or perlite as cutting substrate with the thickness of 10 cm. Cut off 8- 15cm long branches, remove the basal leaves, bind 50 branches into a bundle, soak the base in 50mg/kg rooting powder solution 18h, insert them into the seedbed soil 3-5cm deep according to the spacing of 5cm× 5cm, water them once, build a small arch shed on the side, cover with sunshade net and plastic film, and keep warm. ?

(3) Transplanting and field planting: a field planting ditch is opened according to the row spacing of 25cm, a proper amount of decomposed manure (per mu 1000 kg) is applied in the ditch, field planting holes are opened according to the row spacing of 15cm, and seedlings are raised from the seedbed with soil, and 2-3 plants are planted in each field planting hole with a depth of about 5cm. After planting, water it, and then. ?

3. Fertilizer and water management. Plantar fertilizer should be applied before planting, and the application frequency can be reduced after planting. Generally, manure or chemical fertilizer is applied once a month to mix water, and 5 kg of urea and 3 kg of potassium dihydrogen phosphate are applied per mu. Before wintering or turning green, 2000 kg of decomposed manure or 50 kg of compound fertilizer should be applied per mu. Topdressing every harvest, or applying plant ash 100 kg per mu, promotes branching and increases yield. Lysimachia christinae should be watered according to the principle of "seeing dry and seeing wet", that is, if it is not dry, it must be watered thoroughly. Pay attention to trenching and drainage in rainy season. ?

4. intertillage weeding. Weeding in intertillage should be done several times a year, and weeding in seedling stage needs weeding. Before wintering every year, before turning green in early spring and after mowing every time, we should concentrate on loosening the soil and weeding. ?

5. Pest control. Lysimachia christinae has few pests and diseases. If pests occur, pyrethroids or biological pesticides can be used as appropriate. Such as using Sophora flavescens insecticide to control root maggots; Control aphids with tobacco stem water and Chinese herbal medicine aphid mites. ?

Expert suggestion 1. Pay attention to flood control? Nutritional vegetables have strong adaptability and generally have low requirements for soil and climate, but they are afraid of waterlogging. In Gao Shuang, it is best to choose fields with convenient irrigation and drainage to ensure that summer will not be flooded by rain.

2. Moderate scale? The suitable planting area for one person is 3 ~ 6 mu, and the management is easy to be out of place if the area is too large.

3. timely sales? Chinese cabbage grows well in greenhouse in winter and has good quality, but it is easy to wilt after harvest and cannot be stored. It should be sold within 7 days.

4. Variety matching? Special food management, it is best to choose 2 ~ 3 varieties to be cultivated at the same time, which is not only convenient to contact the clean vegetable distribution company for sale, but also can rotate with each other to reduce the occurrence of pests and diseases.

5. Nutritional vegetables have strong adaptability, and can be cultivated alone or interplanted in orchards and Woods. After years of cultivation, it was found that they grew well under poplar and fruit trees, well under trees in winter and spring, and well under trees in summer and autumn.

The potential and taste are better than those of single field cultivation. China Organic Agriculture Network Organization