MB HydroCalc

This calculator was designed to calculate how much nutrient-solution (fertilizer water) you will need to mix up to grow vegetables using MasterBlend's 4-18-38 tomato formula. This fertilizer can be used to grow vegetables with the "Kratky Method", using Dutch Buckets, or many other hydroponic methods.

To use the hydroponic fertilizer calculator you need to know either the dimensions of your container or the number of gallons it holds. We determine the correct amount of nutrients needed based on the total gallons amount.

Within the App, you can change from calculating Nutrients to calculating Water Volume by switching between the tabs at the top of the screen.

If you made a custom rectangular grow bed, you can input the inside dimensions into the Water Volume Calculator to find out how many gallons it holds. The number will carry over to the Fertilizer Calculator. Just remember that when using the Kratky Method, only 1/8-inch (or so) of your net pot should be underwater at the start of your grow.

If you already know how many gallons your containers hold, you can simply enter that number into the Water Volume field of the Fertilizer Calculator. The correct ingredient amounts will be calculated for you in Grams once you select either Lettuce or Tomatoes. It is important to weigh out the fertilizer using a scale so you don't over fertilize and kill your plants. Ideally, you would want the pH levels of your final solution to be around 6.4 - 6.7. You can research what your plants like best and check your solution using a pH meter.

While the calculator lists only a Tomato and Lettuce formula, the same two formulas have been successfully used with other vegetables as well. You can easily grow various types of peppers with the Tomatoes formula, and other leafy greens like kale work great with the lettuce formula.

该计算器旨在计算使用MasterBlend的4-18-38番茄配方混合种植蔬菜所需的营养液（肥料水）量。这种肥料可以用“Kratky法”，荷兰桶或许多其他水培方法种植蔬菜。

要使用水培肥料计算器，您需要知道容器的尺寸或容器的加仑数。我们根据总加仑量确定所需的正确营养素量。

在应用程序中，您可以通过在屏幕顶部的选项卡之间切换，从计算营养素更改为计算水量。

如果您制作了一个自定义矩形生长床，您可以将内部尺寸输入水量计算器，以查明它所容纳的加仑数。这个数字将转移到肥料计算器。请记住，当使用Kratky方法时，只有1/8英寸（左右）的净水壶应该在您成长的开始时在水下。

如果您已经知道容器装有多少加仑，您只需在肥料计算器的水量字段中输入该数字即可。一旦您选择了生菜或西红柿，将在Grams中为您计算正确的成分量。使用水垢称量肥料非常重要，这样您就不会过度施肥并杀死植物。理想情况下，您希望最终溶液的pH值约为6.4 - 6.7。您可以研究您的植物最喜欢的东西，并使用pH计检查您的解决方案。

虽然计算器仅列出了番茄和生菜配方，但同样的两个配方也成功地与其他蔬菜一起使用。您可以使用西红柿配方轻松种植各种类型的辣椒，其他绿叶蔬菜如羽衣甘蓝配上生菜配方。