What soil is used to grow vegetables on the balcony

Of course, only soil directly from the ground or flower beds is used to grow vegetables on the balcony, and generally nutrient soil is needed.

1, soilless culture: The so-called soilless culture means replacing soil with substrates (including rock wool, peat and leeches).

1. Soilless culture: The so-called soilless culture is the technology of cultivating plants with substrates (including rock wool, peat, vermiculite, perlite, bark, sawdust, water, etc.). ) and soilless nutrient solution. Soilless culture is not only fast growing, high yield, good quality, but also less pests and diseases, clean and tidy, just watering with nutrient solution, which is very convenient for management.

2. Rotten soil: made of fallen leaves, hay, vegetable skins, etc. Pile these materials in the pit, according to a layer of leaves (or hay and vegetable skins) and a layer of garden soil, sprinkle some livestock manure and pile several layers repeatedly, cover the soil and cover it. After more than half a year, the rotten leaves were mixed with garden soil, then screened, dried, collected and preserved. This cultivation is rich in humus, with excellent physical properties, which is conducive to fertilizer conservation and drainage, and the soil is loose and acidic.

3. Coconut bran brick: put the coconut bran brick into a basin or barrel, pour water until the coconut bran brick no longer absorbs water, pour off excess water, and put the soaked coconut soil into a planting box; Uniformly mixing the soaked and crushed coconut soil with earthworm fertilizer (dosage: 1 planting box mixed with half a pack of earthworm fertilizer), and burying an appropriate amount of organic compound fertilizer in the soil as base fertilizer; Spread vegetable seeds evenly on the surface of coconut soil, and then spread a layer of coconut soil, the thickness of which is similar to the height of seeds. As long as the soil is kept moist before the seeds germinate, there is no need to water it too much.

Growing vegetables on the balcony is also risky, so we need to be alert to the "four evils" of soil, containers, fertilizers and air.

Some people buy nutrient soil from shops, and some people just dig some soil from flower beds, ruins or other places. If the soil is polluted. This excavation may lead to an invisible "poison source".

The pollutants in soil include toxic substances, organic wastes, heavy metals (lead, cadmium, arsenic, mercury), slag, fly ash and other radioactive pollutants, mainly from industrial wastes and municipal solid wastes. Some data show that the content of toxic parts in vegetables planted on polluted land is as high as 3.6 times that of unpolluted land! But because these pollutions are invisible to the naked eye, they are easily overlooked. If you want to grow your own vegetables, you'd better confirm the "history" of the soil used.

Secondly, talk about containers. Flower pots are commonly used in family vegetable growing, but the disadvantages of flower pots are that the planting area is too small and the yield is too low. So some people will waste big foam boxes, wooden drawers, scrap metal barrels, large and small plastic bottles and so on. Among them, foam boxes are the most widely used, and qualified foam boxes are ok, but in case of inferior products, toxic substances may be released after use. Scrap metal barrels can be used to hold paint, latex paint, etc. Although it is very strong, there will be chemical residues and hidden dangers. So it's best to buy a regular dish basin.

Let's talk about fertilizer. In order to make vegetables grow better and stronger, fertilizer is essential. Some people think that synthetic fertilizers are unnatural, so they switch to fertilizers such as children's urine and pigeon manure. As everyone knows, these "natural fertilizers" must be fully fermented to have fertility, otherwise it may be counterproductive, allowing parasitic eggs in feces to take root in vegetable merchants. When using fertilizers, we must ensure that natural fertilizers are fully fermented or buy safe organic fertilizers.

Finally, the surrounding environment. Vegetable bases are generally far away from urban areas. If the environment where your balcony is located is clean and tidy, it is good to grow vegetables, but if your home is located in a downtown area, close to the road or where dust gathers, it is necessary to consider it. A large number of automobile exhaust, incomplete combustion of oil and coal emissions. , all contain substances that may cause cancer. After entering the air, they will be attached to the surface of plant leaves or deposited in the soil and absorbed by plant roots.