Spinach is a kind of vegetable that many people like to eat, but also a very common vegetable, now is the time to plant fall vegetables, but there are many kinds of vegetables in the end to plant which one? Here we look at the main points of its planting techniques.

The climate conditions of the autumn and winter seasons are very suitable for the growth of spinach, spinach is cold hardy, even in the cold winter can also be safe.September, October is the largest crop of spinach planting area, "fast green", "fast-growing large leaves". Spinach sown in early September, a month can be harvested, and the leaves are large and round, good color, very popular in the market. You can also use the spare greenhouse planting overwintering spinach, New Year's Day to the Spring Festival can be marketed one after another, management is simple, good benefits, and does not affect the greenhouse in early spring main crop of vegetable production.

1, field preparation

Autumn and winter stubble spinach planting to border as the main, easy to water. After the harvest of the previous crop, acres of composite fertilizer 20-25kg, full tillage 30cm deep, so that the soil and fertilizer mixture is uniform, made into a wide 1m flat bed, convenient watering.

2, variety selection

With the promotion of hybrid spinach, conventional spinach varieties are gradually replaced by hybrid spinach varieties. Hybrid spinach in terms of yield, disease resistance, commercialization and other aspects are significantly better than conventional varieties, the price of vegetables is ordinary varieties of 2-3 times. Therefore, the current professional growers basically choose hybrid spinach seeds.

3, timely and fine sowing

Henan and neighboring provinces of the early fall spinach can generally be sown after the autumn, 35-40 days after sowing can be harvested, and after the harvest continue to sow to the Spring Festival can be harvested 2-3 crops. Overwintering spinach seedlings have 5-6 true leaves, the main root length of about 10cm can be safely overwintered.

Therefore, the most suitable sowing period for open field overwintering spinach is around mid-October. Protected overwintering spinach can be delayed to early November sowing, the following year in March market.

Many farmers in the Central Plains, in mid-November, there are scattered "buried head" spinach habit, the next year 3-4 months on the market, after the harvest and not delay the planting of early spring open ground watermelon. "Buried head" spinach is the use of spinach seeds sucked up still have a strong cold resistance, and in the early spring of the next year after the soil thawed surface temperature of 4 ℃ can be germinated characteristics, early in the soil before freezing on the sowing of planting methods.

Seeding method recommended with spinach special precision sowing columbine sowing, can significantly save seed, or open furrow precision sowing (strip sowing): with the furrow opener according to the row spacing of 15-17cm open furrow, and then evenly sprinkle the seed into the furrow, and mulch trampled, if the bottom of the moisture is not good, you can then water a small water.

4, field management

After the emergence of seedlings should be watered in a timely manner, 2 leaves can not be short of water; 3-4 leaves should be appropriate control of watering, promote rooting deep in order to facilitate the overwintering, the soil freezes before watering frozen water. If the bottom fertilizer is sufficient, there is basically no shortage of fertilizer in the seedling period, and foliar spraying of "YuYi potassium dihydrogen phosphate" 300 times liquid can improve the cold resistance. Overwintering spinach after the return of green, into the rapid growth period, in order to ensure the quality and yield of spinach, combined with watering water acres of urea 20kg, can not be used before the harvest fertilizer, soil pressure tight, so that spinach overwintering under the membrane, higher yields, better appearance.

5, timely harvest

Spinach harvest period is not very strict, grow to 20cm can begin to harvest. August - early October after sowing about 40 days can be marketed; sown in mid- to late-October 70-80 days to market; overwintering spinach after returning to the green 25-30 days or so can be harvested.