There are three main types of vegetables, solanaceous, melon, and beans. There are many varieties of vegetables in these three categories of vegetables. Because of the high rain in summer, the management of vegetables is particularly important, so look at what you need to pay attention to in management.
Solanaceous vegetables
In June, there is more rain. It is necessary to pay attention to trenching and drainage, strengthen the soil, fix the plants, avoid lodging, and especially strengthen the prevention and control of devastating diseases and insect pests such as blight, blight and bacterial wilt. The early-maturing eggplant varieties planted after the Qingming period were removed from the lower senescent leaves before and after harvesting. When the plant height was 50 cm, the old leaves of the lower part of the eggplant were picked.
Melon vegetables
Summer cucumber: When 1 to 2 true leaves, spray 40% ethephon 2000 times liquid 1 or 2 times to promote female flowers. Zucchini: Topdressing 1 or 2 times during the fruiting period, the result of late application of urea can prolong the result period. Winter melon: single vine pruning, timely knock off the side vines, the melons sit down and then remove the male flowers, in the middle and late to the old leaves, with 15 ~ 20 mg / liter of 2,4-D liquid point coated with melon handle fruit. Loofah: Before topdressing, less topdressing, after the melon is applied, the decomposed manure water with a concentration of 40% is applied once, and the harvesting period is applied once every 7 to 8 days for 500 kg of decomposed human and animal excrement per 667 square meters. Bitter melon: pay attention to timely harvest, should be sooner rather than later. pumpkin. Control the melon, the melon grows long, use the 200 ~ 250 mg / l chlormequat solution to water the roots, artificial pollination when the rainy days and insects are small, with 20 ~ 25 mg / liter of 2,4-D solution can be used to prevent fruit The handle is detached, the first time the vine is 0.6 meters long, and the pressure is once every 0.3~0.5 meters, a total of three or four times. When there are already one or two melons, choose a large, good shape and no harm. Take off the rest of the melon, remove the side vines and top the top. Watermelon: Strengthen artificial pollination, put on paper bags to prevent rain, and start to topdress when growing to the size of eggs. One week before harvest, 200-300 mg/L ethephon can be sweetened by fruit surface, and the melon is swollen. Pull back, circle on the side of the melon, pick the heart at the same time, suppress the prosperous, do a good job of turning the melon, pay attention to the ditch.
Beans
Kidney Bean: When the pods are full and the branches are full, the decomposed human and animal excrement of 50% concentration is applied again. After harvesting 2 to 3 batches of tender pods, the topdressing is strengthened, the premature aging is prevented, and the tail of the rat is appeared. Strengthen the control of pea pods and the like. Lentils: In the adult stage, watering once every few days, often keeping the soil moist. Kidney beans: timely harvest, strengthen the prevention and treatment of anthrax.
In addition, in June, the open vegetables in the garden, including leeks, carrots, ginger, peas, lotus roots, lotus roots, and summer radish and summer cabbage planted in June, should be strengthened and managed in time. The management of tomatoes, peppers, eggplants, zucchini, cucumbers, watermelons and melons grown in plastic and medium sheds can be combined with the mask. In principle, the top film is not exposed, it can avoid rain and reduce glare, and there are few diseases. The conditional coverage of the insect-repellent net can reduce the use of drugs, and can not ignore its later management to increase production and increase efficiency.
Urine analyzer is an automated instrument for determining certain chemical components in urine. It is an important tool for automated urine inspection in medical laboratories. This instrument has the advantages of simple and fast operation. However, improper use of urine analyzers and many intermediate links and influencing factors directly affect the accuracy of automated analysis results, which will not only cause errors in experimental results, but even delay diagnosis. Therefore, operators are required to understand the principles, performance and precautions of automated instruments. And the knowledge of influencing factors and other aspects are fully understood, and the correct use of automated instruments can make the results obtained by the urine analyzer more reliable and accurate.
application
In the 1950s, a single dry chemical test strip method was used to measure protein and glucose in urine, and the changes in the color of the test strip were observed with the naked eye and compared with the standard plate to obtain the corresponding values. In the 1980s, due to the high development and widespread use of computer technology, automated urine analyzers also developed rapidly, gradually developing from semi-automatic to fully-automated. Urine analyzers are often divided into two categories according to the test items: â‘ 8-11 screening combined urine test strips mainly used for newly diagnosed patients and health examinations. The eight test items included protein, glucose, PH, ketone bodies, bilirubin, urobilinogen, red blood cells (occult blood) and nitrite; in addition to the above eight tests, urine leukocyte test was added to the nine test items. On the basis of 9 of the 10 urine analyzer testing items, the urine specific density test was added. 11 testing items have added vitamin C testing. â‘¡It is mainly used for the observation of the curative effect of the diagnosed diseases, such as the combination test strip of PH, protein and occult blood (red blood cells) for kidney disease; the combination test strip of PH, sugar and ketone body for diabetes; the combination of bilirubin and urobilinogen for liver disease test tape.
principle
This type of instrument is generally controlled by a microcomputer, and the color change on the test strip is measured semi-quantitatively by using a spherical integrator to receive dual-wavelength reflected light. There are several reagent pads containing various reagents on the reagent strip, each of which reacts independently with the corresponding components in the urine, and displays different colors. The depth of the color is proportional to a certain component in the urine, and there is another in the reagent strip" Compensation pad", as the urine background color, compensates for the errors caused by colored urine and instrument changes.
Put the reagent strip with urine adsorbed in the colorimetric tank of the instrument, and the various reagent pads that have produced chemical reactions on the reagent strip are illuminated by the light source, and the reflected light is received by the spherical analyzer, and the photocell of the spherical analyzer is reflected. Irradiate with dual-wavelength light (measurement light passing through the filter and a reference light), and the selection of each wavelength is determined by the detection item.
The instrument automatically calculates the reflectance according to the following formula, and then compares it with the standard curve, and automatically finds and prints the corresponding results of various components. If the content of a certain component in the urine is high, the reflected light of the corresponding reagent pad is dark, otherwise it is strong.
Reflectance fraction: R(%)=Tm.Cs/TsCm×100%
In the formula, R(%) is the reflectivity; Tm is the reflection intensity of the reagent pad to the measurement wavelength; Ts is the reflection intensity of the reagent pad to the reference wavelength; Cm is the reflection intensity of the calibration pad to the measurement defect length; Cs is the calibration pair. Reflection intensity at the reference wavelength.
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