March 14, 2004 – Top Secret plant nutrients test advanced manufacturing Inc.Manufactory Indoor Indoor Agriculture Agriculture Nutrient Advanced Inc.MANAGING mass balance in the last 12 years we have nutrients in closed hydroponic systems using the principle of "mass – balance ", which means that the mass of nutrients or in solution or in the plant. We add to the nutrient solution, depending on what you want from the plant to take. Plants quickly remove their daily supply of certain nutrients, while other nutrients are accumulated. This means that concentrations of nitrogen, phosphorus and potassium may be at a low level in the solution (0.1 mm or a few ppm) because these nutrients are found in the factory, where we want. Maintaining a high concentration of nutrients in the solution can result in excessive consumption can lead to nutrient solution such as water imbalances.For eliminated through sweating must be replaced and needs about 0.5 mm of phosphorus in replacement solution. If the fill solution was added once a day, the match would be absorbed by plants within hours and the concentration of phosphorus solution was close to zero. This is not scarcity, but rather indicates a healthy plant with rapid assimilation of nutrients. If the phosphorus level is maintained at 0.5 mm in the recirculating solution, the concentration of phosphorus in the plant increased to 1% of dry weight, which is 3 times higher than the optimum in most plants. This high level of iron and phosphorus supply plants to induce zinc deficiency in this way if the daily diet of a dog, some dogs are too heavy bowls were constantly filled. The differential nutrient removal from the solution of the essential nutrients can be put into 3 categories based on how quickly withdrawn from the solution. Group 1 elements are actively absorbed by roots and can be removed from the solution in a few hours. Group 2 elements have intermediate consumption rates are usually removed from the solution a little faster than the water recedes. Group 3 elements are passively absorbed from the solution and often accumulate in solution.TABLE 1. The estimated intake of essential prices nutrients.GROUP 1 active plant uptake, fast removal NO3, NH4, P, K, Mn GROUP 2 fireplaces intermediate Mg, S, Fe, Zn, Cu, Mo, C GROUP 3 fire passive slow removal of Ca B. One problem with single ion monitoring and control is that the concentration of elements in Group 1 (N, P, K, Mn) should be kept low for its toxic buildup in the tissues of the plant. Low concentrations are difficult to control and monitor. Table 2 shows the typical measurement error associated with the use of ICP emission spectrometer for the analysis of hydroponic solutions. Nitrogen can not be measured by ICP-ES. The accuracy is good for the macro nutrients, but levels of solution B, Cu and Mo can not be accurately measured by ICP-ES. The calculations in this table is to fill a typical solution, not the low concentrations that must be maintained in the settlement movement. Measurement errors of K, P, and Mn can be 10 times higher, because the solution lower.TABLE level 2. The typical measurement error associated with a spectrophotometer using inductively coupled plasma emission for the analysis of nutrient concentrations in the hydroponic solution. Nutrient Solution Element Concentration (mM) ICP Accuracy (mm) of error (%) 3.5 0.1 3 K 0.2 Ca 1.0 0.002 S 0.75 0.01 1 P 0.5 0.01 2 Mg 0.25 0.002 1 micro-nutrients (M) (M) (%) 0.15 3 Mn 5.0 Fe 3.0 0.3 10 Zn 1.0 0.15 15 B 1.0 3.0 300 Cu 0.1 0.2 200 MB 0.03 1.0 3300 The total amount of nutrients in the solution can be easily and accurately determined by measuring the electrical conductivity of the solution. However, due to the difference in the rate of nutrients, conductivity measurements typically measure calcium, magnesium and sulfate remain in solution. Micronutrients contribute less than 0.1% and electrical conductivity. DEVELOPMENT OF A PROPER SOLUTION FILLING goal is to fill a prescription for a solution that both nutrients and water filling for development. Plants have evolved to tolerate large nutrient imbalances in the root zone, but in recirculating hydroponic nutrient imbalances, as well as cumulative. It is important that the principles for the replenishment of nutrients, especially if the solution is recycled continuously throughout the life cycle of a crop.Traditional nutrient solution recipes, such as Top Secret plant nutrients test covering advanced manufacturing Agriculture Inc . Can be used as filling solution to understand if