How to configure nutrient solution? (You can do it yourself at home) Please, 3Q.

How to configure nutrient solution? Please, 3Q nutrient solution plays an important role in the normal growth and development of flowers. When preparing nutrient solution, the formula and dosage should be determined according to the varieties, different growth periods and different regions of cultivated flowers. Efforts to achieve a comprehensive and balanced nutrition are conducive to plant absorption and utilization. 1. Several commonly used nutrient solution formulas are 1, 10g sodium nitrate, 70g calcium superphosphate, 25g ammonium sulfate, 35g potassium sulfate and 40g magnesium sulfate. Usage: When using the above formula to prepare a nutrient solution, first mix it with water, then add the mixed trace elements at the ratio of 3g per 100 liter of water, and before use (trace elements are generally mixed and ground into powder with ferrous sulfate100g, boric acid powder14g and manganese sulfate10g). 2. Potassium nitrate 0.7g/L, boric acid 0.0006g/L, calcium nitrate 0.7g/L, manganese sulfate 0.0006g/L, calcium superphosphate 0.8g/L, zinc sulfate 0.0006g/L, magnesium sulfate 0.28g/L, copper sulfate 0.0006g/L and ferric sulfate 0.65438. Usage: When in use, mix various elements together and add 1 liter of water to form a nutrient solution. When preparing nutrient solution, the types and dosage of elements can be increased or decreased according to the different requirements of different flowers. 3. 5g of urea, 3g of potassium dihydrogen phosphate, 0.5g of calcium sulfate 1 g of magnesium sulfate, 0.00 1 g of zinc sulfate, 0.003g of ferric sulfate, 0.00 1 g of copper sulfate, 0.003g of manganese sulfate and 0.002g of boric acid powder; Add 10 liter of water, dissolve and make into nutrient solution. Usage: Potted flowers should be watered once a week during the growing period, and the dosage per time can be determined according to the plant size. For example, if the inner diameter of a flowerpot is 20 cm, it should be poured about 100 ml each time, and the negative flower amount should be reduced. In winter or dormant period, water should be poured every half month or 1 month. Usually use tap water to replenish water. Second, the problems that should be paid attention to when preparing nutrient solution 1. When preparing nutrient solution, avoid using metal containers, let alone using metal containers to store nutrient solution. It is best to use glass, enamel and ceramic utensils. 2. When preparing, it is best to dissolve various inorganic salts with a small amount of warm water at 50℃, then pour them into water containing 75% of the specified volume in the order listed in the formula, stir while pouring, and finally add enough water. 3. If tap water is used in the preparation of nutrient solution, it should be treated, because most tap water contains chloride and sulfide, which is harmful to plants, and some bicarbonate will also hinder the absorption of iron by roots. Therefore, when using tap water to prepare nutrient solution, a small amount of sodium EDTA or humate compound should be added to treat chloride and sulfide in water. If the substrate of soilless culture adopts peat, the above shortcomings can be eliminated. If the groundwater quality is poor, it can be prepared with pollution-free river water or lake water. Third, how to adjust the pH value of the nutrient solution directly affects the state, transformation and effectiveness of nutrients in the nutrient solution. For example, phosphate is easy to precipitate when it is alkaline, which affects its utilization; Manganese, iron, etc. It will also be insufficient due to the decrease of solubility in alkaline solution. Therefore, the adjustment of pH value in nutrient solution can not be ignored. The pH value can be determined by mixed indicator colorimetry, and the pH value of nutrient solution can be determined according to the characteristics that indicators show different colors in nutrient solutions with different pH values. Nutrient solution is generally prepared from well water or tap water. If the pH value of the water source is neutral or slightly alkaline, the pH value of the prepared nutrient solution is close to that of the water source, and it will be adjusted if it does not match. When adjusting the pH value, the strong acid and alkali should be diluted with water (usually neutralized with phosphoric acid or sulfuric acid when the nutrient solution is alkaline, and neutralized with sodium hydroxide when it is acidic), and then added to the nutrient solution drop by drop, and continuously determined with pH test paper until it is neutral. When soilless culture is carried out in different places, different water sources may affect the prepared nutrient solution more or less, sometimes affect the effectiveness of some nutrients in the nutrient solution, and sometimes even seriously affect the growth of crops. Therefore, before soilless culture production, the local water quality should be analyzed and tested to determine whether the selected water source is suitable. First, the water sources of soilless culture are tap water and well water, which are commonly used in soilless culture production. In some places, rainwater in greenhouses or greenhouses can also be used as water sources. What kind of water source to use depends on local conditions, but it must be analyzed and tested before use to determine its applicability. If tap water is used as water source, the production cost will increase because of its high price. However, because the tap water is treated and meets the drinking water standard, it is more secure in water quality as the water source for soilless culture production. If well water is used as the water source, the local stratum structure should be considered, and the mined well water should be analyzed and tested. If rainwater is collected as the water source, dust and other substances in the air will be brought into the water during the rainfall, so the collected rainwater should be clarified and filtered, and precipitants or other disinfectants can be added for treatment if necessary. If the local air pollution is serious, rainwater cannot be used as water source. Generally speaking, if the local annual rainfall exceeds 1000mm, rainwater can be collected, which can fully meet the needs of soilless culture production. In some places, clean reservoir water or river water is used as water source when soilless culture is carried out. Special attention should be paid not to use water flowing through farmland as water source. Before use, it should be processed and analyzed to determine whether it is available. Second, the water quality requirements of soilless culture The water quality requirements of soilless culture are higher than that of ordinary farmland irrigation water, but they can be lower than drinking water. The main indicators of water quality requirements are as follows: 1. Hardness According to the content of calcium and magnesium salts in water, water can be divided into soft water and hard water. Calcium salts in hard water are mainly calcium bicarbonate [Ca(HCO3)2], calcium sulfate (CaSO4), calcium chloride (CaCl2) and calcium carbonate (CaCO3), while magnesium salts are mainly magnesium chloride (MgCl2), magnesium sulfate (MgSO4), magnesium bicarbonate [Mg(HCO3)2] and magnesium carbonate (MgCO3). The content of these salts in soft water is very low. The hardness of water is expressed by the content of calcium oxide per unit volume, that is, each degree is equivalent to10 mg Cao/L. The water in limestone areas and calcareous land areas is mostly hard water, for example, the water in many areas of North China is hard water; In the south, except limestone areas, it is mostly soft water. Hard water contains a lot of calcium and magnesium salts, so on the one hand, its pH value is high, on the other hand, if it is prepared according to the dosage in the nutrient solution formula, the calcium and magnesium content in the nutrient solution is often too high, even the total salt concentration is too high. Therefore, when preparing nutrient solution with hard water, the content of calcium and magnesium in hard water should be calculated and deducted from the nutrient solution formula. In Beijing, it has been tried that only relying on calcium in hard water can meet the growth requirements of lettuce. Generally speaking, it is best to use hard water below 15 for soilless culture, and hard water with too high hardness cannot be used as water for soilless culture, especially for hydroponics. 2. pH: A wide range, ranging from 5.5 to 8.5. 3. Suspended matter: ≤10 mg/L. It is used in river water and reservoir water. , can only be used after clarification. 4. Sodium chloride content: ≤100 mg/l. Dissolved oxygen: there is no strict requirement. It is better to be ≥3mgO2/L before use. 6. Chlorine (Cl2): It mainly comes from the residual chlorine in tap water during disinfection, and the residual chlorine in chlorine-containing disinfectants such as sodium hypochlorite (NaClO) or calcium hypochlorite [Ca(ClO)2] used for facility disinfection should be ≤0.0 1%.

How to configure the nutrient solution for transplanting trees, and how to configure it locally? Transpiration inhibitor of green plant nutrients-mainly used for excessive evaporation of water during transportation, planting and maintenance of trees.

Function: inhibit the evaporation of water in the transportation process of plant leaves, improve the survival rate and inhibit the excessive evaporation of water after planting.

Anti-root rot agent-mainly used for planting trees to prevent the occurrence of root rot after planting trees.

Function: Inhibit root rot factors of soil, create a good growth environment for tree roots, prevent and inhibit root rot of trees, and thus improve the survival rate of trees.

Band-aid-it is mainly used to treat the wounds of trees after pruning and block the top of the roots.

How to configure the computer? If 3Q assembles a desktop computer, there are many problems to consider. First of all, there is the problem of configuration, and there is also the problem of price. More importantly, the compatibility between the things you choose is good. Many people have computers, and the price is around 3000. The configuration is good, but it often goes wrong, which involves the compatibility between hardware. So when you configure a computer, you should know what brand and model of each hardware is good, and also consider their compatibility.

Please configure your own computer, 3Q. Do you want to not upgrade in the next few years? Or use it first, and then equip it with a high-end machine in a few years? I don't know what you're thinking, this configuration is hard to say, because now the quad-core plus 500 G1G128 bit display configuration is good, only 2800 to 3000.

Configure your own host, how to configure it better? 3Q 6000 Yuan: CPU:AMD Snapdragon II X4 925 (box) 899 Motherboard: Gigabyte GA-MA770T-UD3P 729 ASUS M4A77TD PRO 750 Memory: Yu Zhan 2GB DDR3 1333 Two 670 hard drives: Seagate 7200.338+02500. G 355 monitor: BenQ G24 10HD 1300 graphics card: Dylan Hengjin HD4890 fire drill T1-kloc-0/299 optical drive: BenQ DW240S 190 power supply: Cool Tomahawk 400 (RS-440 320 Kloc-0/90 keyboard and mouse: Ben 160 5500 Yuan: CPU:AMD Haolong II X4 925 (box) 899 Motherboard: Gigabyte GA-MA770T-US3 649 Memory: Yu Zhan 2GB DDR3 1333 Two 670 hard drives: Seagate 7200./. 0 165 graphics card: sapphire HD5770 1G GDDR5 platinum edition 1099 optical drive: BenQ DW240S 190 power supply: hangjia cold crystal king diamond version 2.3 199 chassis: hangjia flame h/kloc-. Operating system: Windows 7 Ultimate Edition (MSDN) 160 5000 Yuan: CPU:AMD Athlon II X4 630 (box) 695 AMD Snapdragon II X2 550 (box) (quad-core) 675 Motherboard: Jabbo Hummer HA08 699 Memory: Yu Zhan 2GB DDR3 1333 Two 670 hard disks. Kloc-0/2 500G 355 monitor: BenQ g 22229 version 1G 899 optical drive: BenQ DW240S 190 power supply: hangjia cold crystal king diamond version 2.3 199 chassis: hangjia life h102/kloc-. 160 4500 Yuan: CPU:AMD Athlon II X4 620 (box) 685 Motherboard: Spartak Kuroshio BA-270 Pro 599 ASUS M4A78 599 Memory: Yu Zhan 2GB DDR3 1333 Two 670 hard drives: Seagate 7200. 1 2 500G 355 monitor: BenQ G920WL 899 graphics card: Jingtai HD4850 (HD 160 4000 yuan: CPU:AMD Athlon II X3 425 (box) 490 motherboard: Spartak Kuroshio BA-270 Pro 599 ASUS M4A78 599 memory: Yu Zhan 2GB DDR 3/KLOC-0. 333 335 hard disk: Seagate 7200. 12 500G 355 monitor: AOC 9 19Sw 740 graphics card: Onda HD 4777 160 3500 yuan: CPU:AMD Athlon II X2 245 (box) 399 motherboard: Spartak Kuroshio. 0 499 memory: Yu Zhan 2GB DDR3 1333 335 hard disk: Seagate 7200. 12 500G 355 monitor: AOC 9 19Sw 740 graphics card: Dylan Hengjin HD4670 160 Respondents added 20/kloc-. The low-end quad-core is definitely much worse than the high-end dual-core. Buy a hard disk for Seagate 7200. 12 500G 355. The speed is basically the fastest, and the most stable quality is also very good. Buy memory instead of Kingston. . . Yu Zhan, Wei Gang is good, and Samsung's general Jin Bang also works hard to buy graphics cards. Sapphire and Dylan Hengjin are the best first-line manufacturers to ensure the quality of other brands of graphics cards. Some have high cost performance, but the quality of the second line is generally poor, and the board is very thin and the heat dissipation is not good, such as the double photosensitive part of the graphics card. Buy the motherboard and buy the best micro-gigabit ASUS first-line manufacturer. In addition, the spartan Kuroshio series has high cost performance and good quality, and Bojie is the OEM. Chassis should be more than 150, with good heat dissipation and power supply. Be sure to buy something rated above 300W W, and give you these reminders. Please refer to most configurations. Hehe, in fact, it is the most affordable to match more than 3 thousand now. More than 2,000 are outdated too quickly, and more than 3,000 are basically satisfied. Now, if all mainstream games are satisfied with HD and normal operation, don't forget to use it as a satisfactory answer. Thank you. Just buy a stereo that you think is of good quality. Generally speaking, more than 200 stereos, 1000 stereos. Ordinary people can't hear the gap. Rambler R20 1T06 198 Zhongguancun ranked first kkkUIIIOkocvP.

Is the nutrient solution in the hair harmful to the body? Please, 3Q nutrient solution will contain chemical components, so you'd better buy a brand. For example, Lux has a powerful deep nutrient solution to repair the seven major injuries. Personally, I feel good. Everything in its home is very easy to use, and the new nutrient solution from Pan Ting is also very good, but it should be noted that even the best nutrient solution should not be applied to the hair roots, because it will clog the pores. Don't put conditioner and hair mask on the hair roots!

Why can nutrient solution bring trees back to life? Excuse me, if the environment and nutrition required for the growth of 3Q plants are met, trees can grow.

How to prepare plant nutrient solution for hydroponics? Please, fairies, do you want to spend some time with yourself? Then send you a Hoagland's nutrient solution formula: calcium nitrate 945mg/L potassium nitrate 607mg/L ammonium phosphate1Kloc-0/5 mg/L magnesium sulfate 493mg/L iron salt solution 2.5ml/L trace elements 5ml/L pH=6.0 Improved Hoagland formula: calcium nitrate tetrahydrate 945 mg/L. L ammonium nitrate 80mg/L potassium dihydrogen phosphate 136mg/L magnesium sulfate 493mg/L ferric salt solution 2.5ml pH=6.0 ferric salt solution: ferrous sulfate heptahydrate 2.78g disodium EDTA (EDTA). Na)3.73g distilled water 500ml pH=5.5 Trace element solution: potassium iodide 0.83mg/l boric acid 6.2mg/ L manganese sulfate 22.3mg/L zinc sulfate 8.6mg/L sodium molybdate 0.25mg/L copper sulfate 0.025mg/L cobalt chloride 0.025mg/L: Baike Baidu./View/2/Kloc.

How can you let yourself eat nutritious food? Please, everyone, the nutritional needs of 3Q should be balanced, and you should not be picky about food. Food, poultry, eggs, meat, beans, vegetables and fruits are indispensable. Proper exercise and promotion of body metabolism will make your body healthy and not gain weight.

How to match your nutritious meal in spring? Please pay attention to the five points of 3Q scientific breakfast ● The time should be the best. Medical research has proved that it is most appropriate to have breakfast from 7: 00 to 8: 00, because people have the strongest appetite at this time. The interval between breakfast and Chinese food is about 4-5 hours. If the breakfast time is advanced, the quantity should be increased accordingly or the lunch time should be advanced accordingly. ● Drink water before breakfast. After a night's sleep, people consume a lot of water and nutrition from urine, face plate and breath. After getting up for breakfast, they are in a state of physiological water shortage. If you only eat regular breakfast, it is far from supplementing physiological water shortage. Therefore, don't rush to eat breakfast in the morning, but drink 500-800 ml of cold boiled water immediately, which can not only supplement physiological water shortage, but also wash human organs, thus improving organ function and preventing diseases. ● The heat supply should be appropriate. The amount of various nutrients in breakfast recipes should generally account for about 30% of the daily supply. Among them, for nutrients that may be insufficient for lunch and dinner, such as energy and vitamin B 1, breakfast should be appropriately increased. Moreover, the combination of coarse and fine materials and meat and vegetable can make the composition ratio of eight essential amino acids in food protein more balanced and the nutrition is complementary. ● Cooking should not only pay attention to personal physiological characteristics, but also pay attention to everyone's appetite and taste. It is best to have hot porridge, hot oatmeal, hot milk and hot soybean milk. Do not drink iced coffee, iced tea, iced milk, etc. Eat less fried food. ● Acid and alkali foods cannot be ignored. Many people are used to eating steamed bread, fried food and soybean milk for breakfast. Some people eat eggs, meat and milk. Although these foods are rich in carbohydrates, protein and fat, they are all acidic foods. If there are too many acidic foods in the diet, it will easily lead to blood acidification, causing physiological acid-base imbalance in the body, and calcium deficiency will often occur. Therefore, if you can eat some vegetables and fruits containing alkaline substances, you can achieve the balance of dietary acid, alkali and nutrients. Generally, it should be salty and sweet. Eat fruit or drink fruit juice. Breakfast for children: Children are in a vigorous period of growth and development, so it is very important to pay attention to supplementing rich protein and calcium. First of all, eat less foods with high sugar content to prevent dental caries and obesity. A glass of milk, an egg and a slice or two of bread are usually the best choices for children's breakfast when conditions permit. Milk can be drunk alternately with drinks such as juice. Bread can sometimes be replaced by biscuits or steamed bread. Breakfast for teenagers: The body develops rapidly in adolescence, and muscles and bones often grow together. In particular, sufficient nutrients such as calcium, vitamins C and A are needed to help the body grow and develop. Therefore, the breakfast suitable for teenagers is a cup of milk, a fresh fruit, an egg and two or two dry snacks (mainly carbohydrates such as steamed bread, bread and biscuits). Breakfast for middle-aged people: Middle-aged people are "eventful autumn", shouldering two important tasks of work and family, and their physical and mental burdens are relatively heavy. In order to slow down the aging process of middle-aged people, their diet should be rich in protein, vitamins, calcium, phosphorus and so on. , and should be kept low in calories and fat. What does a dietitian have for breakfast? Living in a busy metropolis, most people can use many excuses such as sleeping late and having no time to prepare breakfast. So, let's see how nutritionists arrange and prepare their own breakfast. Perhaps it can provide reference for many white-collar workers or parents. The method is very simple, that is, make sandwiches and drink milk, cook boiled eggs or marinated eggs the night before, cut them in half, slice the cucumber, wash the cherry tomatoes, and put the eggs/marinated eggs, sliced cucumbers and cherry tomatoes directly in two pieces of bread the next morning. For children, turn the shrimps in the microwave oven upside down and put them in the sandwich, which not only supplements calcium, but also supplements protein. It is salty and refreshing. If you want to season, you can also put some ketchup. The whole journey takes no more than 10 minute, but all the nutrients are available. If time is still not enough, you can make sandwiches the night before and put them in the microwave in the morning. A glass of milk and a sandwich can be eaten by children in less than 10 minutes.