Small iron head planting technique

Autumn cabbage is sown in early to mid-July.

Overwintering kale is sown from late October to early November.

The amount of seed per mu is 50-75 grams.

Seedling method: choose fertile, cool vegetable soil, plough and roast before sowing, and then level finely, apply 1500 kg of rotting manure and urine per mu as base fertilizer, rake evenly after drying, make soil and fertilizer fusion, and then sow seeds, 10 grams per square meter of sowing seeds.

Then cover with a layer of sieved fermented coal ash soil (fine soil and miscellaneous fertilizer can also be), when drought, build a flat shed for shading (it is better to use a shade net), keep the soil moist for a long time, remove weeds and weeds in time after emergence, and spray pesticides to control pests and diseases.

Field cultivation: seedling age: between 25 and 30 days.

Transplanting: Select seedlings with strong and disease-free leaves, no broken leaves, consistent growth, and good roots, and take them for transplanting.

Field soil preparation: apply base fertilizer, about 15-20 days before transplanting, first turn the field over and turn it, let it roast and dry for about 10 days, and then carry out soil preparation, rough trimming, 2 days before transplanting, and then apply base fertilizer, 2000 kg of decomposing mature manure and urine per mu, 25 kg of superphosphate, 1 50-200 kg of plant ash or fire soil ash.

In order to concentrate the fertilizer effect, the basal fertilizer can be directly applied to the planting hole, and then the hole soil is mixed well after drying, waiting for transplanting.

After transplanting, each seedling is watered with a little pressure pocket water, 0 5 kg per plant, and then watered once a day until it survives.

Top dressing, irrigation and drought resistance: after survival, the first top dressing is carried out, and 10 human and animal manure dilute per mu is used for topdressing, and 600 800 kg per mu is applied.

After the stall period, before balling, mid-term topdressing 3 4 times, topdressing concentration of 30-40, the number of about 1500 kg per mu, topdressing to human manure, pig fertilizer, etc., can add a little chlorine fertilizer, generally per 100 kg plus urea 0 5 kg.

In addition, during the entire growth period, chemical fertilizers should only be added less than 2 times, so as not to affect the quality.

In the case of high temperature, high sun, long sunny and no rain, corresponding measures can be used to carry water and water seedlings or irrigate wet seedlings to resist drought.

Irrigation is carried out in the evening on a sunny day, and the remaining water in the ditch is drained immediately after irrigating the surface of the ditch, so as not to cause rooting and affect growth.

In addition, the top dressing of spring cabbage is different from the top dressing of autumn cabbage mentioned above.

In the case of the same base fertilizer, spring cabbage in winter is generally watered with water to resist drought and protect seedlings, but watering water should not be too much, as long as the seedlings grow well, there is no lack of water, do not water.

After the beginning of spring, spring cabbage grows rapidly, at this time it is advisable to top dressing 2-3 times of heavy fertilizer with a concentration of about 40, 1 time in the interplant leaves are full of soil, called "sealing rows", and the other 1-2 times are carried out before and in the middle of balling.

About 150 kg of human feces and urine per mu.

What to cut a few centimeters a tree.