1, spring spinach Spring spinach is most suitable for planting between early March and mid-April, and it is most suitable for planting around mid-March, but there are some differences in temperature between north and south. It is usually planted in April and May in Northeast China and harvested in May and June. Planting in North China and Central China in February and March, and harvesting in April and May; Sow in the river area from February to April, but mid-March is the suitable time for sowing, and harvest can be achieved 30 ~ 60 days after sowing.
2. Summer spinach Most summer spinach is planted in stages from May to July, preferably in early June. It can grow up about 60 days after planting, and can be harvested and sold normally in July and August.
3. Autumn spinach can be divided into early autumn spinach and late autumn spinach. Generally, it is planted from early August to mid-September, and it should not exceed 65438+1early October at the latest. The specific time of each place is different. Such as Northeast China, Inner Mongolia Autonomous Region, Xinjiang and other places, sowing is generally carried out from the end of July to the beginning of August, and harvesting begins from the end of September to the end of 10. Sow in North China in August and harvest at the end of September-10; Sow in the river area from the end of August to the beginning of September, and harvest 30~50 days after sowing.
4. Generally, winter spinach is planted from the middle of 10 to the early of 10, and the best planting time is when the temperature drops to about 18 degrees in the middle of10, and the planting time is different in different places. Generally, it is planted in the river area from the end of 165438. North China is sown in the middle and late September and harvested from the end of March to the end of April.
High-yield methods of spinach planting;
1, thin seedlings Although spinach is a close-planted vegetable, too close planting will interfere with the normal growth of spinach. Therefore, it is necessary to do a good job of thinning seedlings. After spinach grows 2-3 vertical leaves, it is necessary to do a good job of thinning seedlings in places with excessive density, and even spray fungicides to avoid bacterial infection after thinning.
2, intertillage weeding spinach seedlings grow two vertical leaves, you can do intertillage weeding. Intertillage is mainly to loosen the soil, prevent hardening, and create excellent soil conditions for the growth and absorption of spinach roots. Weeding is mainly to prevent weeds and seedlings from competing for nutrients, and it is best to weed manually.