1, soil requirements
According to the habit of space lotus, the lotus field should choose a place with good lighting conditions. Shady windy fields and cold water fields with little light cannot be planted. The most suitable soil for planting space lotus is paddy field with high organic matter content, 30 cm topsoil and pH value of 7.5. The poor soil quality, hardening and strong viscosity are not conducive to the growth of space lotus.
2. Preparation before planting
In the second year, the fields planned to plant space lotus should be ploughed in the winter of that year, and two plows and one rake should be irrigated before the Spring Festival. Combined with ploughing, applying 60 kg of pig manure or 40 kg of human manure every 667 square meters and sprinkling 50 kg of quicklime at the same time can play the role of soil disinfection and decomposition of decomposed organic fertilizer. When plowing and harrowing for the last time before planting, 100 kg of vegetable waste should be used as base fertilizer for fields without pig manure every 667 square meters. In order to prevent and reduce the occurrence of lotus rot, sow 1.5 kg Mi Le every 667 square meters.
3, the choice of lotus root
The main lotus root or secondary lotus root with the characteristics of space lotus varieties, complete terminal buds and lateral buds, strong lotus body and no disease spots should be selected. Digging and planting. If you don't finish planting that day, you should cover the grass with water to keep it moist to prevent wilting. When long-distance introduction and transportation, the bottom layer should be padded with straw, and the top layer should be covered with water to keep it moist.
4. Planting density and time
The experiment shows that the whole growth period and harvest period of space lotus are longer than those of conventional varieties, so the planting density can be appropriately sparse, and 180 terminal buds (taps) can be planted every 667 square meters. When planted separately, the terminal buds will all face Tian Xin. The transplanting time is after the vernal equinox and before Tomb-Sweeping Day. The temperature is stable above 15 degrees Celsius, and the weather is sunny and warm. Now we need to dig and plant.
5. Tian Tuan management
The field management of space lotus is an important link to improve the yield per unit area. Including topdressing, irrigation, lotus planting, weeding and other agricultural management measures.
(1), rational application of topdressing varieties in stages requires high fertilizer requirements. Generally, the total dosage of NPK fertilizer in 667 square meters is 80 kg, and the ratio of NPK is 10: 5: 7. The topdressing principle of space lotus is: apply foliar fertilizer early, apply early flower fertilizer skillfully, apply greenhouse fertilizer again, apply later fertilizer, and increase potassium fertilizer and trace fertilizer.