Eucommia ulmoides Oliv Originated in China, it has been cultivated for nearly a thousand years. This paper introduces the requirements of Eucommia ulmoides planting environment, and discusses the techniques and steps of Eucommia ulmoides planting for friends' reference.

1. Environmental requirements for planting Eucommia ulmoides Oliv.

Eucommia ulmoides Oliv Suitable for growing in deep, fertile, moist and well-drained soil, with a ph value of 6-7.5. It is best to grow at the foot of the mountain, on the mountainside and on the sunny slope with little slope, and it is better to shade slightly at seedling stage.

When planting Eucommia ulmoides. Forests should be planted on the mountainside or the middle and lower part of the mountainside on the south and southeast slopes. The soil is too acidic or too alkaline, so Eucommia ulmoides is not suitable for planting.

Eucommia ulmoides Oliv The requirements for soil and temperature are not high, and it can safely overwinter at -20℃. But it grows faster in humid and high temperature areas.

Second, the soil preparation method of planting Eucommia ulmoides Oliv.

Soil preparation should be carried out in autumn. It is advisable to exercise in barren hills and wasteland.

If the slope is above 100, it is necessary to prepare the soil according to the terrace, and the specifications of afforestation and excavation are 70? 70? 70cm, soil miscellaneous fertilizer 10 kg, phosphate fertilizer 0.5kg and decomposed cake fertilizer 0.5kg per hole, and the slope above 250 is not suitable for afforestation.

Third, Eucommia ulmoides. Key points of afforestation technology

Eucommia ulmoides Oliv Afforestation can be carried out in spring and autumn, and in cold areas it should be carried out in spring. Afforestation density mainly depends on the operation mode and site conditions, and the general afforestation density is 1.5? 2m，2？ 2m，2？ 3m company

In order to ensure the sexual reproduction of Eucommia ulmoides Oliv. The proportion of male plants in afforestation is 5% ~ 10%. Autumn planting is from September to 65438+ 10, and spring planting is from March to April.

Irrigation should be given immediately after planting, and lateral buds should be picked in time to promote their survival. Leguminous crops can be intercropped in the young forest period, which not only increases income, but also improves soil and promotes tree growth.

The fourth is the tending management of Eucommia ulmoides Oliv. Eucommia ulmoides Oliv Forest management is very important. After 65,438+0 years of afforestation, the trunk was cut off 65,438+05 days before the young trees germinated in spring. Two-year-old nursery seedlings or grafted seedlings with stubble height of 2-4 cm and seedling height of more than 2m shall not be leveled after planting.

In order to strengthen the management of soil and fertilizer, the first loosening should be carried out before the beginning of April, and the second loosening and weeding should be carried out in May or early June. Weeds should be applied after ploughing or decomposing in woodland.

Intercropping with leguminous crops in the young forest period, replacing tillage with tillage. In the second year after afforestation, replant the missing plants and replant the biennial first-class seedlings.

Summer intertillage weeding, combined with intertillage weeding and fertilization, the amount of fertilization is 0/000 ~ 2000 kg per mu of tree age, 50 kg of compound fertilizer or 40 kg of diammonium phosphate.

Verb (abbreviation of verb) Prevention and control of Eucommia diseases and insect pests. Including damping off, root rot, leaf blight, leopard moth and so on.

Prevention and control of rice sheath blight: When sowing, mix 50% carbendazim 37.5kg/hm2 with fine soil, and then sprinkle it on the seedbed or in the sowing ditch; Irrigation with 50% carbendazim 1000 times solution at the initial stage of onset.

Prevention and treatment of root rot: dig out diseased trees and burn them, and disinfect tree holes with 50% formalin.

Prevention and treatment of leaf blight: it will harm leaves, and in severe cases, leaves will die. The nursery should be cleaned and sprayed with Bordeaux mixture during the growing period.

Prevention and control of leopard-print silkworm moth: cleaning the countryside in winter; At the beginning of June, the adults were coated with whitening agent before laying eggs, and the larvae were sprayed with 40% dimethoate emulsion 400 ~ 800 times during the incubation period.