High quality and high yield management measures after potato emergence

First, timely break the membrane grafted seedlings from time to time to check the emergence of plastic film covering the emergence of the potato, and timely break through the seedlings, and in the emergence of the mulch to break a small mouth lead seedlings, with wet soil sealed membrane hole.

Second, early Shi Ti Miao joint potato fertilizer Qi Miao, per acre 15 kg of urea, or compost human excrement 200 kg, or ammonium bicarbonate 25 kg plus potassium sulfate 5 ~ 8 kg watered; Urea application of urea 10 to 15 kg, but pay attention to see seedlings and fertilizer.

Three, early earth, high ridge seedling period combined with top dressing for a cultivator soil; chase after the application of bud fertilizer for the second cultivator soil, ridge height of 20 cm or more.

Fourth, timely drought-resistant drainage Drainage on dry fields, to timely irrigation, to be immediately after the soil wet; when there is more rain, drainage should be cleared in time.

Fifth, to prevent freezing damage during the sowing increase in planting ash, burning soil and other thermal fertilizer, or before the onset of cold waves, watering, smoke and cover plants on the potato plants and other measures to enhance the ability of plants to resist cold.

Six, do a good job of regulation and control Wang plants grow too prosperous, in the budding period, select the sunny morning dew disappeared or after 2 pm, 15% paclobutrazol 15% per acre plus 60 kg of water evenly spray. If there is still a tendency to prosper, it may be sprayed once a week after spraying.

Seventh, anti-hazard quality promote production

1. Late blight: When the average temperature reaches 15°C after emergence and there is continuous rain for more than 3 days, use 70% mancozeb WP, each dose of 175-225 g per acre; or 70% Antai, each Each dose of 150-200 grams per mu is used for prevention. When a late blight epidemic strain was found in the field, 68.75% silver-fabric 60-75 ml/acre, or 72% kelp 100 g was sprayed. When severe, repeat application every 7-10 days for 4 to 5 consecutive times.

2, underground pests: First, use Le Sibu granules mixed with basal fertilizer spread in the fertilizer trench; second is combined with the first fertilization with 90% crystal trichlorfon 800 ~ 1000 times or 50% phoxim 2000 times Spray and keep seedlings.

3, locusts: Mu can be used 50% anti-inferiority WP 2000 ~ 3000 times or 10% imidacloprid WP 2000 times evenly spray.