Summer potato planting season June 1 - June 25 before planting, acres planted 3200, ridge width 60 cm, ridge height 30 cm, ridge top 30 cm, spacing 28 cm, sweet potato fertilizer main fertilizer Mu 60 pounds, or a bag of sweet potato special fertilizer, the whole growth period is not easy to manage, save time and effort. Three days after the ridge is planted, three or three days of planting plots must be sprayed with the herbicide acetochlor in the dry land. If the seedlings are sprayed and sprayed, the herbicide can be sprayed once more when the seedlings are planted. Spring and summer potato planting all use sweet potato taro, potato seedling requirements, length 23 cm, six leaves to seven leaves is appropriate, spring potato flat plug, buried 2.5 cm, buried three quarters exposed four sections, 40 days after spraying sweet potato Swelling agent, spraying 7-10 days in the late growth of sweet potato expansion of potassium and potassium dihydrogen phosphate, shrinking section security, spray a total of two times. During the whole growing season, if it does not turn rattan, if it encounters rainy weather, it should be lifted once in the morning after the rain. For example, cutting potato vines in Daejeon can reduce production by 30-40%. The wheat stubble is inserted obliquely, and the wheat should be harvested and ridiculed before planting to obtain high yield. Four factors for planting seedlings: 1, shallow planting, 2, pressing, 3, watering, 4, fine sealing soil. There are three main points in the whole fertility of sweet potato: 1. It is stable in the early stage, 2. It is robust in the medium term, and 3. It is yellow in the later stages.
The whole growth period of the spring potato was 140 days. Before the middle of August, the sweet potato expansion was sprayed 3 times and sprayed once every 10 days to increase the yield by 20%, increase the starch by 3%, and market or process it before cold dew. The whole growth period of summer potato was 110 days.
Black And White Ultrasonic Diagnostic Equipment
It can be configured with a variety of variable-frequency probes to meet various clinical needs; dual probe interface, the probe can be freely switched; it adopts a number of international advanced digital image processing technology and software technology, such as dynamic broadband low-noise preamplification and dual-echo processing technology, multi-point dynamic focusing, dynamic variable aperture, dynamic filtering, gain compensation (TGC), frame correlation, DSC transform interpolation, etc., with a clear and delicate image. It is suitable for diagnosis and examination of abdomen, gynaecology, obstetrics, urology, blood vessels, heart, small organs and superficial parts.
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