How to irrigate Hawthorn Garden reasonably

Hawthorn, edible plant, drupe fruit, hard, thin pulp, slightly sour taste. Deciduous shrubs. The branches are dense, with fine spines, and the young branches are pilose. Branchlets purplish brown, old branches grayish brown. The fruit can be eaten raw or used as preserved fruit cake, which can be used as medicine after drying. it is a unique dual-purpose tree species in China, which has the effects of reducing blood lipids, blood pressure, strengthening heart, anti-arrhythmia and so on. it is also a good medicine for invigorating spleen and appetizer, eliminating food stagnation, activating blood circulation and resolving phlegm, and has a good effect on chest, diaphragm and spleen fullness, hernia, blood stasis, amenorrhea and other diseases. Vitexin, a flavonoid in Hawthorn, is a strong anticancer drug, and its extract can inhibit the growth, proliferation, invasion and metastasis of cancer cells in vivo.

There are many spring and autumn droughts in North China, and irrigation in spring and autumn is a necessary condition for Hawthorn to increase production. According to the practical irrigation period of young trees and fruit trees in Laixi County, Feixian County and Shandong Fruit Tree Research Institute of Shandong Province, young trees can generally be irrigated 3 times, that is, before germination, the speed of new shoots is long, and before freezing. Fruit trees add fruit water after Xiehua, fruit attack water during fruit coloring period, and rejuvenation water after fruit picking for a total of 6 times.

The main results are as follows: (1) pouring sprouting water before germination: Hawthorn needs more water from germination to flowering. At this time, Hawthorn germination, new shoot growth, leaf curtain formation, floral organ further improvement, differentiation and so on, water will play an important role in normal growth and development. At this time, there are many spring droughts in North China, so watering should be guaranteed.

(2) Water for promoting growth in shoot growth period: insufficient water supply in this period affected shoot growth, leaf canopy formation, tree potential and next year's yield.

(3) fruit juice after Xiehua: the spring drought is aggravated and there is often dry and hot wind in May after flowering. At this time, Hawthorn physiological activity is exuberant, which is the critical period of Hawthorn water demand. If the water supply is insufficient, it is often easy to cause serious flower and fruit drop.

(4) the fruit coloring period: the fruit expansion period is also the flower bud differentiation period of Hawthorn. At this time, it is mostly autumn drought in North China, so irrigation should be combined with topdressing to increase the yield of Hawthorn and promote flower bud differentiation.

(5) rejuvenation water after fruit harvest: Hawthorn was harvested in the first and middle of October, and it was 40-50 days after harvest before entering the defoliation stage. In this way, combined with the application of base fertilizer and timely irrigation, it can promote root growth, rejuvenate trees and increase storage.

(6) overwintering water before freezing: irrigation is conducive to safe overwintering and can provide water for spring sprouting. Henan Baiquan Agricultural College measured the soil water content of Hawthorn orchards with different drought conditions, and pointed out that the lowest water content to keep Hawthorn trees growing normally was 10.48% for sandy loam and 9.34% for sandy gravel soil. Shandong Fruit Tree Research Institute in the river beach sandy garden, the appropriate irrigation period is 9% of the soil content. Although different phenological periods have different requirements for soil moisture, it can be used as one of the bases for determining the period and frequency of water demand. In view of the serious shortage of water resources in the north, it is necessary to study and improve irrigation technology and adopt advanced water-saving irrigation methods. Mulching after planting can effectively maintain soil moisture and improve the survival rate. Plastic film mulching, crop straw mulching, soil cultivation and deep ploughing can increase water storage and reduce surface evaporation. The construction of terraces can prevent surface runoff. The agronomic techniques of these dryland orchards should be carried forward, studied and improved. The combination of advanced water-saving irrigation technology and traditional dry farming technology can create high benefits. Making use of the income of Hawthorn, investing in setting up water conservancy and introducing drip irrigation and sprinkler irrigation technology can save more than 2pm 3 of water and greatly improve the productivity of Hawthorn.