Planting techniques of spinach in early autumn

Spinach is planted in early autumn, the growing period is about 30-40 days, the time is short, and the vegetables are on the market quickly, which can meet the market demand for autumn light vegetables and achieve higher economic benefits.

1. Soil selection. The spinach planted in autumn is not strict to the soil, the cultivation on sandy loam shows early maturity, and it is easy to get high yield in clayey loam. The acid resistance was weak, and the suitable soil pH value was 5.5. The soil pH grew poorly when the soil pH value was below 5.5 or above 8.

2. Sowing time. Hebei Luquan sowed around August 20 and went on the market around late September. Mainly select heat-resistant and high-yield spinach varieties, such as omnipotent spinach and so on.

3. Apply sufficient base fertilizer. Spinach has a high absorption rate of nitrogen and potassium, generally applying rotten farm fertilizer 1000kg and ternary compound fertilizer 80kg per mu; at the same time, the soil moisture should be kept at 70% and 80% of the field capacity during the whole growth period.

4. sow seeds at the right time. Direct seeding, room width 2-1.5m, adult tortoise back shape, 2Mel sowed evenly for 3 times. In order to ensure the whole seedling in early autumn, the seeds can be soaked in 15Mel and 20 ℃ for one day, germinated and then sowed wet. High temperature in autumn, more Rain Water, spinach sowing rate should not be too large, generally sowing dry seeds per mu 1.2-1.5kg. After sowing, in order to ensure the whole seedling and promote the growth of spinach, cover the seed with thin soil, cover the seed with rice straw, or cover it with a shed, reduce the harm of high temperature and rainstorm and direct sunlight, and maintain soil moisture. After two true leaves of spinach were unfolded, the leaf number, leaf weight and leaf area increased rapidly, and the available nitrogen fertilizer was applied twice. Li Ziming and Zhang Weixia