The hedgehog is also known as the seagull, which is a soybeans, and which is a leafed wood, which is tanned from the tan of the bark to the black, and which is so shallow that it breaks into deep and deep that it is thin and smooth. Born in north america, the hedgehog is now widely seeded to asia, europe, etc. (b) the thick, dark and lacerated bark of the thorns; and a pair of one to two mm long thorns in the roots of the leaves
The flowers are white, fragrances and raisins; the fruit is berries, each containing 4-10 seeds. Pilgrim wood is hard, corrosive, slow to burn and high in heat. Pistol flowers are edible. The honey is sweet and the honey production is high. Cultivated varieties include velvet, gold-leaf, etc。
Form characteristics: i stinged the leaves, 10-25 metres high, and the bark was brown to black, shallow to deep and thin. A small piece of gray and brown, with a elliptical ridge at a very young age, is slightly covered with hair and has no hair afterward; a sting of leaves of up to 2 centimetres; and a small winter sprouts with hair. ~40 cm long plume; masked ditches on the axis
A pair of two-to-one, constant, elliptical, elliptical or ovary, 2-5 cm long, 1. 5-2. 2 cm wide, front-end round, micro-dick, small tipping, base-to-wide wedge, full edge, top green, bottom grey, short, soft hair at a young age and then hairless; small leaf handles 1-3 mm long; small toy pins。
~1 ~1. 7 centimetres long, lined in brown or red brown stripes, 5-12 cm long, 1 ~1. 3 cm wide, flat, up-front bends, pointy head, short necks, narrow lengths along the abdomen line; bouquets containing 2-15 seed; seeds brown to black, radiant, sometimes striped, close to kidney, 5-6 mm long, approximately 3 mm wide, umbilical, one end. April-june, august-september。
Cultivation: pyramid temperate tree species that grow well at an average annual temperature of 8°c ~l4°c and annual rainfall of 500~9000mm; especially in coastal areas with high air moisture, they grow fast and have a full dry shape. Wind resistance is poor and stings planted at the storm mouth are prone to wind turns, wind falls, tilts or crowns。
Pilgrims are sensitive to moisture conditions, growing slowly in areas where groundwater levels are too high and overdrive, and are susceptible to disease, resulting in the planting of rotting roots, deadness and even death. Some drought resistance. Deep, fertile, estuarine, wet, sandy, sandy or sticky soils。
It is normal to grow on neutral soil, acid soil and saline soil with a salinity of less than 0. 3 per cent, with poor growth and even death on water-stubling, inflatable clay. The light, the shade. It's very embryonic and very rooty。
The cultivation of hedgehogs
(b) land selection, ground-cleaning and fertilization: given the fear of cold, flood and alkaline seedlings, it is appropriate to select fertile sandy soil with a high terrain and easy to drain. Soil salinity is below 0. 2% and groundwater table is more than 1 m. Water is chosen for use on the ground, or on land that is deep and flat。
And grow not in the lowlands, nor in the poor mountains. Stinglings are not suitable and can be rotated with yang trees, pine trees, etc., in order to prevent deadness and to prevent the adhesive breeding of the soil. The whole area requires intensive farming, full-scale fertilization in the autumn, spring-spring and planting in early may。
Field management: in seedlings, mastering the characteristics of the seedlings as drought-resistant, light-laden and flood-resistant is key to ensuring their survival。
Water: no water can be pumped until seedlings are full. After seedlings, when soil moisture is moderate, it is necessary to plant the soil in a timely manner, so as to increase the temperature of the ground and sow. Water is poured too early, the soil is wet, the temperature is low, and it is prone to seedlings or yellow leaf disease。
On the basis of repeated plowing of the pine soil, the first water can be poured in early june and then every 20 d in normal conditions. Post-drinking in early july was suspended for a period of time ... To promote wood enhancement and winterization, with a final winter injection in late november。
(b) fertilizer recovery: the first fertilisation was carried out in conjunction with the first water injection, with urea 45~75kg/hm^2, with a combined water injection in late june, with a combination of nitrogen- and phosphorus-based compound fertilizer twice, with a fertilisation rate of 75~195kg/hm^2, which was discontinued in early august。
It's better to have winter till spring and spring, with a moisten of 3,000 to 5,000 pounds per acre. In the spring, the ground should be ready early, with deep flips (over 25 cm), dredges and flattening. At the same time, 5 per cent of thiophos-methyl per acre was mixed with 15 pounds of black thallium (sulphate) and 40 times the amount of fine soil was mixed into the ground for soil decontamination。
Weeding on pine soil: seedlings tend to grow in a timely manner after water or rain, often without weed. • winter in winter: the stinglings are liable to fall frost and spring winds in one to two years, resulting in the drying of parts of the field, so that the sprouts should be dug after autumn for fall or winter planting, and afforestation is provided in spring of the second year。
Transplanting breeds large seedlings: breeding large seedlings, such as roads, courtyards, urban greening, etc., which are generally carried out in the former state between late april and early may, and the density of transplantation depends mainly on the specifications and years of tree cultivation. In general, four-year-old transplanted strains have a distance of 50 cm x 100 cm. The longer the tree is grown, the greater the distance of the strain。
The transplants are more of a cave implant, which should be preceded by cutting off the ground and cutting the broken roots. The root length shall be maintained at 20-30 cm, with a seedling slurry planted at depths equal to the top of the neck. Upon transplantation, the trees are to be fed in a timely manner, such as fattening, pine soil weeding and winterization. In particular, the flatlings are to be removed, sprung and sprung。
