Late-stage Management techniques of Adult Zanthoxylum bungeanum Garden

I. strengthening the management of flowering and fruiting period

⑴ boron spraying at flowering stage: spraying 0.3% borax solution 1-2 times during full flowering of Chinese prickly ash can significantly improve the fruit setting rate.

⑵ uses Zanthoxylum bungeanum red accelerant: the use of red accelerant can promote pepper coloring and increase yield. 7-10 days before picking, 200-fold solution of red accelerant was sprayed on the tree for 1-2 times, so that the mature period of Chinese pepper was relatively concentrated, the picking efficiency was increased by more than 2 times, and the pepper skin was bright, the peeling rate increased by 3.3%, and the plant yield increased by 23%.

⑶ timely picking: due to the influence of traditional habits, pepper farmers generally pick pepper early, starting in mid-July and ending in early August, resulting in poor flavor and low yield. In general, the best harvest time is from August 5 to 15, which can increase the plant yield by 20% compared with the traditional method.

Second, strengthen the management of fertilizer and water. Its fertilizer and water management should mainly focus on the following three periods:

⑴ first, when the fruit grows to the size of mung bean, immediately apply phosphorus and potassium fertilizer, and apply it every 8 days or so for 2-3 times. Choose to spray foliar fertilizer such as 0.3% potassium dihydrogen phosphate and 0.2% urea aqueous solution on the morning and evening of cloudy, rainy and sunny days to improve the quality of Zanthoxylum bungeanum, increase per unit yield and stabilize fruit and fruit.

The second is to re-apply potassium sulfate compound fertilizer immediately after pruning and pruning of Zanthoxylum bungeanum bungeanum (around 20 August), and the third is to remove branches from the heart, prevent insects and clear the garden before the Beginning of Winter (around 20 November), and then apply "overwintering fertilizer" rich in organic matter.

Third, comprehensive prevention and control of diseases and insect pests. The common diseases and insect pests affecting the production of Zanthoxylum bungeanum are: woolly aphid, mulberry scale, two-spotted black longicorn beetle, egg-shaped short-whisker mite, grasshopper, pepper brown spot, rust, dry rot and so on. The annual control of diseases and insect pests of Zanthoxylum bungeanum is mainly divided into six stages:

⑴ dormancy period (December to February): the main purpose is to clean the pepper garden, cut off the branches of diseases and insects, and destroy them centrally. Remove all kinds of overwintering diseases and insects.

⑵ prickly ash before sprouting (mid-first ten days of March): spray 3-5 degree stone sulfur mixture 1-2 times or spray 80-100-100-machine mixture or spray 800-fold Jiaojiejing once. Mainly control overwintering diseases and pests, such as woolly aphid, mulberry shield scale, dry rot, brown spot, rust and so on.

⑶ Zanthoxylum bungeanum after falling flower (late April to early May): spray 800x carbendazim plus 1200 times 45% phoxim EC, use with it, if the disease is serious, spray twice again after a week. Mainly control diseases and insect pests such as woolly aphid, brown spot, rust and so on.

⑷ prickly ash young fruit period (April to June): to strengthen the prevention and control of dry rot, stone sulfur mixture can be used to apply dry rot disease spot once.

⑸ prickly ash young fruit to pepper ripening period (June to August): plug the fresh fecal holes of mulberry longicorn beetles and two-spotted black longicorn beetles with 80% dichlorvos. If the rainfall in this period is 60100mm, it can be sprayed with 25,000,800 times of wettable powder once, and then spray 1000 times of 70% methyl topiramate once after 10 days. Control mulberry longicorn beetles, brown spot, rust and other diseases and insect pests.

⑹ prickly ash after picking (August to September): if the rainfall in this period is more than 60 mm, we should strengthen the prevention and control of rust, brown spot and other diseases.