Carefully sowing and raising seedlings of Zanthoxylum bungeanum

The dosage of deoiled prickly ash seeds per mu is 7: 10 kg. Zanthoxylum bungeanum seed shell is hard, contains oily, not easy to absorb water, seedling emergence is more difficult. There are more empty seeds, accounting for more than 50%. Water separation should be carried out before treatment, empty and blighted seeds should be removed with hedgerow in water, and then the full seeds should be deoiled.

The method of deoiling is to prepare solution with ①. Melt 200g washing powder in warm water, then mix 50kg cold water well, pour into water tank or basin, water temperature 50 ℃ ~ 60 ℃; ② rub oil. Pour the seeds to be treated into the detergent solution, pound them repeatedly with sticks, etc., until the seed coat is bright black brown; soak and rinse with ③. The viscosity of the solution is high because it is mixed with rubbed oil. after scrubbing, soak the seed coat with clean water for 6 hours, soften the seed coat, then rinse repeatedly with clean water until the seed coat is dried when there is no oil.

Sowing time can be spring sowing, autumn sowing or early winter land before sowing before freezing, generally in early spring to early summer or late autumn, early winter sowing.

Sowing method to sow or trench treated seeds with sowing seeds. Sow 7.5 to 9 kilograms per mu, then rake it flat. Where there are conditions, it can be covered with straw to increase temperature and preserve soil moisture.

Accelerating germination before sowing is beneficial to the prosperity of the whole seedling. The method is: mix the washed seeds with 2cm fine sand or fine wet slag and fine wet soil, the thickness is not more than 30cm, sprinkle water in time to keep moist, and sow seeds when the seeds are sprouted. Spray water in time after sowing to facilitate the emergence of seed buds, do not flood irrigation.

It is better to keep the seedling density in the north-south direction of the sowing border, the width of the border is 1 meter, the row spacing is 15-20 cm, the plant spacing is 6-10 cm, the height of the seedling is 8-10 cm, and the seedlings are fixed and fixed, and the missing seedlings are replanted in time. If the soil fertility is good and the seedlings are sparse, the soil fertility can be properly dense (80,100 plants per square meter), and the number of seedlings per mu is 30,000 to 60,000 plants.

At the beginning of seedling management, the seedlings are weak and the weeds are exuberant, so the weeds should be pulled in time. When the seedlings grow to 10 cm, do a good job of watering and fixing seedlings, the plant spacing is 10-15 cm, 40-45 seedlings are retained per square meter, and about 30,000 seedlings emerge per mu. In early July, in case of continuous rain, 5 kg urea per mu is applied to promote seedling growth and improve seedling quality. Generally, seedlings can grow to more than 50 cm in the same year.

Transplanting seedlings scientifically in spring, summer and winter is better. It is carried out in spring when the bud of Zanthoxylum bungeanum begins to sprout, in summer in the plum rain season, and in winter before and after the Beginning of Winter.

Dimethoate or dichlorvos can be sprayed in time to prevent and cure aphids. Spraying 800-1000-fold methyl topiramate after "the Beginning of Autumn" can prevent early defoliation disease. Zanthoxylum bungeanum seedlings are sprayed once Bordeaux liquid to prevent the occurrence of seedling blight. After the rainy season, bacilli is used to control coal fouling disease again.