Yellow planting technology
Rehmannia glutinosa is also known as habitat and rehmannia. Its roots for medicinal purposes, with strong heart, diuretic, analgesic, hypoglycemic and protect the liver and other effects, which can be cultivated throughout the country. Fetal
Doppler applies ultrasonic doppler principle to obtain the movement
information of fetal heart from abdomen of pregnant women, enlarge the
signals, and output them from earphones so as to calculate the value of
fetal heart rate.
Technical Specification for Yonker YK-90C fetal doppler
How to use:
Fetal Doppler, Baby Fetal Doppler,Baby Heartbeat Monitor,Doppler Baby Heartbeat Monitor at Home,Fetal Heartbeat Monitor Ningbo Queen Electronic Science Technology Co., Ltd , https://www.queenmeds.com
Main techniques and key production measures for high yield cultivation land
First, choose the site preparation. Should choose a deep, fertile, well-drained sandy loam soil. In the first year of winter or early spring, the soil is deep-turned over 25 cm. At the same time, 2000-3000 kg of compost of compost and 25 kg of superphosphate are used as base fertilizer per acre. Afterwards, the leveling process is meticulous, generally 1.3 meters wide. Special attention should be paid to replanting yellow earthworms. This is also a key measure to be taken into consideration when selecting land.
Second, choose planting. In general, cultivated yellow plants use rhizomes as propagation material, and production is called 'plants'. The “planter†of Rehmannia glutinosa is generally selected from the “pre-planter†planted in July-August of last year. This is because when the “back-planter†planter is used as a seed, the yield of the rehmannia glutinosa is high and the quality is good. Prevent species degradation. Before planting, the 'planter' will go to the head and tail and take the middle section. Then cut into small pieces 3 to 6 centimeters in length, and leave two to three buds for each segment. The cuts are stalked with plant ash, dried slightly and then seeded. The average planting density is 30 to 40 centimeters, and the plant spacing is 25 to 30 centimeters. On a good hoe, dig a 3-5 cm deep hole, place a 1-2 section of each side of the hole, cover 1 fire and earth ash mixed with manure, and cover it with a fine earth cover. Each acre requires 'planting' 40-60 kg. Pay attention to the use of 'back-end' 'plants' as far as possible when selecting seedlings to avoid the use of small commodities. At the same time, 'vegetables' must be removed from the 'old mother'. That is, planting plants in the early days.
Third, field management. (1) and time seedlings fill seedlings. When the seedling height is 10-12 cm, the seedlings are started and 1 strong seedling per hole is left. In the event of a lack of plants, they should be planted in a timely manner on a cloudy day. The plants should be raised with soil from the time of planting, so that the survival rate is high; (2) Weeding and weeding. Rehmannia root into the soil is shallow, the cultivator should be shallow, to avoid the roots, the weeds around the seedlings should be removed by hand, after the plant seal line, stop cultivator; (3) top dressing. In order to promote rhizome development and enlargement, when the line is closed, 1 layer of fire and earth ash shall be applied between the rows to promote the development of rhizome development. Plants grow robustly; (4) Irrigation. In the early period of Yellow River, the amount of water needed is large, which should be diligently watered, and the later period is the period of underground rhizome expansion. Water should be saved. During the rainy season, attention should be paid to timely drainage to prevent the occurrence of root rot; (5) In addition to string roots. In addition to the main root of yellow, but also along the surface grow slender underground stem, called string roots, these string root loss more nutrition, should be promptly eradicated.
Fourth, pay attention to the prevention of pests and diseases. The diseases of Rehmannia root mainly include spot blotch, ring rot, and wilt disease. These diseases generally begin to occur in early May and occur from June to July. They should be treated promptly; insects include spider mites, tigers, and earthworms. According to the conventional method of treatment, pay attention to the selection of pharmaceutical agents should avoid the use of highly toxic pesticides.
V. Harvest processing. In spring, the yellow land should be excavated in time when the stems and leaves on the ground are yellow before and after November of that year. When the excavation is completed, a 35 cm deep ditch should be opened at one end of the crucible, and the rhizomes should be carefully removed in turn; the processed ground yellow should be processed into the ripening ground using a special oven to become a commodity.
All in one design
The probe and main units integrated together
High sensitive doppler probe
Crystal clear sound
Low power consumption
Compact and light
Ergonomic design
Easy to use
CE approved
Ultrasound Frequency 2MHz
Sensitivity From 10 - 12 weeks
Before using it for the first time, make sure 2 batteries are in
Press the power button to power on, then adjust the volume
Lie flat with a cushion pillow, keep legs straight and relax
Attach the fetal probe to the abdomen to locate the position of the fetus and find out the best direction to the fetal heart
After hearing regular fetal heart sound, the FHR value will display on the screen in real time