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目前显示的是 十月, 2019的博文

What about nutrient solution temperature?

The hydroponic nutrient solution is not just a mix of fertilizer salts and water, there are a number of organisms and compounds commonly found in our hydroponic systems that we need to be aware of. One of the most important of these is dissolved oxygen, which is vital for the health and strength of the root system as well as being necessary for nutrient uptake. Most growers are familiar with the need to have some form of aeration in their nutrient solution – whether they be in a recirculation or a media based system. In NFT systems, this is often accomplished with the use of an air pump or by allowing the nutrient to fall back into the reservoir, thus introducing oxygen. However, the effect of temperature of the solution on the dissolved oxygen levels and on root respiration rates also needs to be taken into account. As the temperature of your nutrient solution increases, the ability of that solution to ‘hold’ dissolved oxygen decreases. For example, the oxygen content of a fully a

What look like when marijuana is in differient stages?

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Germination: Between 24-Hours and 2 Weeks Plants use sexual reproduction in order to carry on the species into the next generation. There are male and female cannabis plants which must reproduce. Sometimes, hermaphrodite plants exist, but these are not something you should concern yourself about right now. Growers want to use female plants because these are the only ones that produce a massive quantity of trichomes. In case you didn’t know, trichomes are the white crystals packed full of cannabinoids like CBD and THC. Male plants are virtually useless, but they could end up contaminating your crop if you keep them around. As a result, you should look out for feminized seeds. Seed banks often sell this type, so they shouldn’t be too hard to find. If you use regular seeds, there is a 50/50 chance you will get male or female plants; with feminized seeds, all your plants will be females. Once you have your feminized seeds, it’s time to germinate them. Each and every seed contains a

How to Control the smell produced by cannabis grow room?

Why Does Marijuana Smell Marijuana is filled with terpenes, an aromatic oil that coats cannabis varieties with a distinctive odor. Terpenes in cannabis began for adaptive purposes to help repel predators and attract pollinators. Over 100 different terpenes have been identified in the cannabis crop, with each individual terpene associated with a unique effect. If you have ever smelt a cannabis crop, you may have associated the plants odor with that of a skunk, and you would be right. Many terpenes can smell like thiols, the chemical compound behind the skunk spray odor. Therefore, marijuana will always smell like a skunk, but depending on the strain some will be contain a stronger skunk like odor than others. Odor Control Solutions for Indoor Cannabis Grow Rooms PICK THE RIGHT STRAIN Cannabis plants can take on different shapes, sizes, and aromas. Some strains exude less stank than others. One should avoid anything remotely close to Skunk and Cheese varieties. These were s