,Consider it from the perspective of ecological environment. The nursery substrate is required to contain basically no live germs and insect eggs, and no or as little harmful substances as possible to prevent them from contaminating the environment and food chain after entering the growing field with the seedlings. In order to meet this standard, the seedling substrate should be quickly fermented by a starter culture to achieve the purpose of sterilization, virus killing, and insect egg removal.
< , , The seedling cultivation substrate should have similar functions to soil. In terms of nutritional conditions and growth environment, the substrate is more conducive to plant growth than soil. But it still needs to have other functions of the soil, such as root entanglement (to facilitate rooting) and good water retention.
< , , It is better to prepare organic and inorganic composite substrates for seedling cultivation substrate. When preparing the seedling substrate, attention should be paid to the scientific and reasonable combination of organic substrate and inorganic substrate to better regulate the ventilation, moisture and nutritional status of the seedling substrate.
< , , Choose to use light substrates with rich local resources and low prices. When applying plug seedling technology, how to choose the seedling substrate is the primary issue related to the cost and quality of seedlings. Under normal circumstances, local light substrate resources suitable for plug seedlings should be fully explored and utilized to reduce the cost of seedling substrates, thereby reducing the sales price of plug seedlings. According to the actual situation in various places, low-priced substrates such as carbonized rice husk, cottonseed husk, sawdust, vermiculite, and perlite are selected as plug seedling substrates.
Seedling substrate manufacturers tell you how to select seedling substrates