水培花卉营养液配方（Nutrient solution formula of hydroponics flowers）

水培花卉营养液配方（Nutrient solution formula of hydroponics flowers） 水培花卉营养液配方(Nutrient solution formula of hydroponics flowers) The second, the potassium dihydrogen phosphate; potassium nitrate; calcium; 5 Magnesium Sulfate; trace elements and without iron; the iron (EDTA = sodium iron); the regulation of hydrogen ion concentration. Formula of nutrient solution for hydroponics flowers: 1. Preparation method of nutrient solution The preparation of nutrient solution for flower water is usually two kinds of preparation of concentrated storage solution (also known as mother liquor) and working nutrient solution (or nutrient solution, that is used directly for planting crops). Production is generally diluted with concentrated storage liquid into the work of nutrient solution, so the former is to facilitate the latter and prepared, and if there is a large capacity container or less dosage, you can also directly prepare the nutrient solution. Preparation of 1. liquor: in order to prevent the precipitation in the preparation of liquor, not all the compounds in the formula are put together because the product concentration of some ions dissolved after the concentration exceeds its solubility product and will precipitate. Therefore, the various compounds in the formula should be classified, and the compounds which will not precipitate each other will be dissolved together. Therefore, the various compounds in the formula are generally divided into three categories, and the concentrated solutions are called A mother liquor, B mother liquor and C mother liquor. A mother liquid with calcium salt as the center, where not with calcium and precipitation compounds can be placed together dissolved. Generally include Ca (NO3) 2, KNO3, concentrated 100-200 times; B mother liquor is centered on phosphates, where compounds that are not precipitated with phosphate are soluble together, usually including NH4H2PO4, MgSO4, and 100-200 times concentrated; C mother liquor is made up of iron and trace elements, Because of the small amount of trace elements, the concentration factor can be higher, which can be prepared into 1000-3000 times liquid. In the preparation of various mother liquor, the concentration of mother liquor, on the one hand, according to the formula in the amount of various compounds and solubility in water to determine, on the other hand, to facilitate the operation of an integer multiple is appropriate. Concentration times can not be too high, otherwise, compounds may be supersaturated and precipitated, and when the concentration is too high, dissolution is also slower. Preparation of concentrated stock solution steps: according to the concentrated stock solution to prepare the volume and concentration ratio to calculate various compounds content in the formula, in order to properly weigh weighing various compounds A and B in the mother liquor liquor, were placed in the liquid storage container, a fertilizer must be added, fully stirred and wait before a fertilizer fully dissolved to add second kinds of fertilizer, to be dissolved after adding water to the required volume of preparation, stirring. In the preparation of C solution, the first volume of the volume of water required for preparing 2/3, divided into two parts, separately in two plastic containers, weigh FeSO4, 7H2O and EDTA-2Na were added to the two container, mixing and dissolving, the solution FeSO4 and 7H2O slowly poured into the EDTA-2Na solution, edge stirring; then other kinds of compounds of trace elements from C mother liquor required, were dissolved in small plastic containers, then slowly poured into the dissolved solution of FeSO4 - 7H2O and EDTA-2Na, stir, add water to the required volume of preparation, stirring. Two Preparation of the nutrient solution: when the mother liquor is diluted into the working nutrient solution, the precipitation must be prevented during the addition of various mother liquor. The preparation method comprises the following steps: in the liquid storage pool in about 1/2-2/3 of the volume of the prepared water, poured into the amount of A required for liquor consumption, open the pump flow or the stirrer spread evenly, and then measured the amount of B mother liquor, slowly poured into the water tank cleaning at the entrance of the let the water dilute B liquor into the tank after the water pump, open loop or stir, and the process of consumption has reached 80% of the total amount of liquid. Finally, the C mother liquid is taken and added into the liquid storage tank according to the adding method of the B mother liquor, and the preparation of the nutrient fluid is completed by circulating or mixing with the water pump. In production, if a nutrient solution needs a great amount of large amounts of nutrient elements can be prepared by direct weighing method, and trace elements can be used to prepare C mother liquid and diluted method of nutrient solution. The preparation method comprises the following steps: put in the liquid storage tank in the cropping system to prepare the total volume of nutrient solution was about 1/2-2/3 of water, weighing various compounds is equivalent to A mother liquor, placed in the container after the dissolution into the liquid storage tank, circulating water pump is started; and then take the equivalent of a variety of compounds of B mother liquid the dissolved into the container, with plenty of water diluted slowly into the liquid storage tank of water at the entrance of the water pump is started circulating flow; then take the C mother liquor, diluted with plenty of water, pour slowly in the liquid storage tank with water at the entrance, open the pump to circulate nutrition liquid evenly so far. In Holland, Japan and other countries, the modernization of large-scale greenhouse soilless production, generally use the A and B two A in the mother liquor tank, tank mainly containing calcium nitrate, potassium nitrate, ammonium nitrate and iron chelate, B tank containing potassium sulfate, potassium nitrate, potassium dihydrogen phosphate, Magnesium Sulfate, manganese sulfate, copper sulfate, zinc sulfate, borax and sodium molybdate, usually made of 100 times of the mother liquor. In order to prevent the mother tank precipitation, sometimes equipped with acid tank to adjust the acidity of mother liquor. The whole system is controlled by a computer, diluting and mixing to form a nutrient solution for irrigation. Two. Operation rules for preparation of nutrient solution In order to avoid mistakes in the preparation of nutrient solution and affect the planting of crops, we need to establish a set of strict operating procedures, the contents should include: 1. the calculation process and final result of nutrient solution should be checked several times to ensure accuracy. 2. weighing various raw materials, to check the accuracy of the number of the repeated calls, and ensure the weighing raw material name, not the wrong person. In particular, more attention should be paid to the appearance of similar compounds. 3. kinds of raw materials in the preparation of good respectively after together in a specified position on site verification, finally no omission, to begin with. Do not rush the operation when the materials are not in order. 4., establish a strict record file, the preparation of various raw materials, dosage, preparation date and preparation personnel detailed records for inspection. Three, matters needing attention In order to prevent precipitation of mother liquor, when stored for a long time, Generally, it can be acidified with nitric acid or sulfuric acid to pH 3~4, and the concentrated mother liquor should be kept in a cool and dark place, and the mother liquor should be stored in dark containers. Preparation of nutrient solution in direct weighing nutrient compounds, added in the liquid storage tank and do not precipitate calcium salts and calcium salt, do not immediately join the phosphate and not with other phosphate compound precipitation, and should be added after the circulating water pump about 30 minutes or longer. Attention should also be paid to the inclusion of trace elements, not immediately after the addition of a large amount of nutrients. In the preparation of the nutrient solution, if a small amount of sediment is found, the circulating flow time of the pump should be prolonged so as to precipitate the precipitate. If it is found that due to the addition of compounds in the process of the preparation of fast speed, produce high local concentration and the emergence of a large number of precipitation, and by a long time after the opening of water circulating pump still can not make the precipitate dissolved, should be re formulated nutrient solution, otherwise it may fail because of some nutrient elements precipitate in the process of growing the crops, culminating in nutrition the elements in nutrient deficiency or imbalance and exhibit physiological disorders. For example, iron deficiency chlorosis occurs when iron is precipitated in trace elements.