Vegetable fertilizer is not the more the better, how to fertilize more accurate? Here's a tip for gardening
Soilless cultivation of fruits and vegetables, in order to high-yield and high-quality, fertilizer management is a key point, there are many farmers there are mistakes in fertilization. Many farmers often ask, you substrate cultivation of fruits and vegetables, to the fruit expansion period, How much catty of fertilizer is used per acre, and soil cultivation the same amount?
There are also differences in fertilization methods between soilless cultivation and soil cultivation. When the soil is planted, the general use of conventional water-soluble fertilizer, soilless cultivation to use the whole element fertilizer, because the 14 elements have to be supplemented in order to avoid the symptoms of deficiency. In addition, the frequency of watering and fertilizing is also different.
When you grow fruits and vegetables, you water them with fertilizer. When the soil is planted, it will only be watered once in a while. The amount of fertilizer applied is relatively large. Some farmers need to use 30 catties or 40 catties of fertilizer per acre of land. Soilless culture because of the good permeability of the substrate, every day to water, sometimes five or six times a day, each time with fertilizer, but the watering time is short, each water with less fertilizer. In general, we have to look at fertilizer concentration, that is, we often say EC value.
If the fertilizer concentration is too large, the accumulation of salt, easy to root injury. Less fertilizer concentration, poor growth of vegetables. The fertilization concentration is also different in different growth stages, small in the early stage and large in the middle and late stages of growth. Fertilizer concentration can not be seen at a glance, in order to fertilize more scientific, error-free, have to mention a commonly used tool, that is, EC detection pen, use it to detect fertilizer concentration.
Water contains calcium and magnesium ions, such as salt, we can use the EC PEN to test the water source, some places not more than 1, the northern region will be higher. Then, the fertilizer concentration is determined according to the basic water source. At the same time, each time the amount of fertilizer to use EC pen detection, so we should pay attention to the EC pen detection is accurate, so as to avoid errors. If the pen is not accurate, then we are not accurate throughout the growth period of fertilizer.
Some farmers sound like trouble and rely on a pen to do the job. In fact, the whole process of fertilization is very simple, will fertilizer into the bucket, weigh the weight, and then add water to dissolve, pour into the reservoir, to add water. Finally, EC detection pen to determine the concentration of fertilizer, whether it meets the requirements. If the EC required at the seedling stage is 2, the measured value exceeds 2, add water appropriately.
Plant fruits and vegetables, the amount of fertilizer is not the more the better, how much fertilizer to use each time appropriate? There doesn't seem to be an exact answer. Many greenhouses have excessive fertilization, resulting in high salt concentration, not conducive to the growth of vegetables. The EC pen is used to determine the concentration of fertilizer before fertilization, which is the simplest and more scientific method. Reduce the waste of water and fertilizer. In addition to the use of EC detection pen, but also to determine the ph value, you can use ph test paper detection. Generally speaking, the ph value is between 5.5 ~ 6.5, is advantageous to the root to the fertilizer absorption.