Key points for efficient cultivation of green Ruyi loofah

I don't know if you have heard of Green Ruyi Loofah, a good variety and high quality loofah. So let me tell you about the cultivation technology of Green Ruyi Loofah:

1. Planting period

For early-maturing cultivation in greenhouses, seeds are sown from mid-January to early February, and seedlings are grown in electric hotbeds or fire cellars. The seed rate is 300g per 667 square meters. For early-maturing cultivation in small arch greenhouses, seeds are sown in mid-to-late February, and the seed rate is 200g per 667 square meters.

2. Land preparation and basal fertilizer application

7-10 days before planting, early-maturing cultivation should be carried out with a 1.33m or 2.0m bed (covering one side of the ditch). Deep ditch and high bed cultivation, land preparation, nesting, 3000kg of decomposed human and animal manure, 3000kg of compost, 50kg of superphosphate, and 20-30kg of potassium chloride per 667 square meters. Mix the fertilizer with the soil in the nest and cover it with mulch.

3. Planting at the right time

The temperature is stable above 10% for loofah planting. Early-maturing greenhouse planting is in mid-to-late February, and early-maturing small arch greenhouse planting is in late February to early March when the weather is cold at the end and warm at the beginning. Generally, the density of early-maturing greenhouse planting is 2000-2500 plants/667 square meters, and the double-row single plant should be retreated 40-50 cm.

4. Build a trellis and prune

Early-maturing cultivation of single plants in double rows usually uses a "human" frame, a flat frame for double plants in a single row, or a greenhouse frame as a support; when the loofah has 4 to 5 true leaves, the vines are guided to the frame. Pruning method: remove the side vines and keep the main vine. After 4 to 5 young fruits are produced, pinch the top and keep the top side buds. Leave 3 to 4 fruits on the top side buds and then pinch the top, and then keep the top side buds to promote the rapid growth and expansion of the early fruits and obtain a higher early yield.

5. Strengthen artificial pollination

In spring, the temperature is low, insects are less active, and there are few male flowers in the early stage of early-maturing loofah. The amount of pollen is insufficient, and natural pollination is difficult, so artificial assisted pollination is required. Generally, male flowers that open on the day are taken for artificial pollination between 7:00 and 9:00 in the morning.

6. Fertilizer and water management

The first topdressing is generally carried out after the seedlings have grown, with 1000-2000kg of diluted human and animal manure or 10kg of compound fertilizer applied per 667 square meters; the second topdressing is carried out at the early stage of flowering or after the first melon is firmly planted, with 2500-3000kg of decomposed human and animal manure or a mixture of 15kg of urea and 15kg of compound fertilizer applied per 667 square meters. After that, fertilization is carried out once every 3-4 harvests, with water-based fertilizer as the main method, and human and animal manure and appropriate amount of fertilizers are used alternately.

7 Harvest

Generally, the fruit is harvested 10 to 12 days after flowering and ripening. Root melons should be harvested early, and harvested every 2 days during the peak fruiting period. The early-maturing cultivation harvest period is 50 to 60 days, and the yield can reach 4,000 to 5,000 kg/667 square meters.

8. Pest and disease control

① The infected leaves of the loofah virus disease are yellow-green mosaic, the leaves are wrinkled and crooked, or deformed. When the disease is serious, the leaves become hard and brittle, and dead spots appear. The fruit is infected, and the diseased fruit is spirally deformed, or small and twisted. Pay attention to the prevention and control of aphids in April, as aphids are the direct spreaders of viral diseases. Or spray with 500 times of 20% virus A wettable powder, 1000 times of 1.5% plant disease emulsion, and 100 times of 83 resistance enhancer.

② Nearly circular white powdery spots appear on the affected parts of the loofah, which are then connected into large spots with irregular edges. In severe cases, the entire leaf is covered with white powder, and the diseased leaves gradually turn yellow and brittle. At the end of April, spray with 15% fenadimefon wettable powder 1500 times diluted, or 30% tersulfamethoxam wettable powder 1500-2000 times diluted.

③ The larvae of American leafminers mainly feed on the leaf pulp, causing a large number of curved white tunnels in the leaves, which seriously affects the yield and product quality. It is better to use 2000-3000 times diluted avermectin to control 1-2 instar larvae; spray the plants with 1500-2000 times diluted 0.9% Jiqi Chongmanke EC or 1500 times diluted 52.25% Nongdi Le Emulsion for 2-3 times.