Background:Due to the importance of medicinal and ornamental plants, nutritional management has an important role in increasing the production and quality of these plants. Many factors affect their quality and growth, the most important of which is the culture media. Therefore, efforts are made to use substrates that, in addition to affecting the quality of the plant and its growth, are economically inexpensive and do not cause water and soil pollution. Therefore, to develop green space and preserve the environment, it is necessary to increase soil organic matter. In this regard, the use of organic matter is one of the most important ways to provide soil organic matter and natural wheel of these compounds.
Aim: This study was conducted to investigate the effect of nanofertilizers and organic matter of green algae, spent(Used compost, residual & remains of mushroom farming) mushroom compost on the quantitative and qualitative characteristics of evening primrose seedlings in the Faculty of Agriculture and Natural Resources, Persian Gulf University. Destruction resulting from salinity stress was performed using organic matter and silicon nanocods as well as reducing the loss of ornamental plants in the bed and saline irrigation water.
Methodology:The experiment was performed as a factorial experiment in a randomized complete block design with three replications. The studied factors included two levels of silicon nanofertilizer (0, 2 mM) and two levels of salinity stress (0, 5.5 dS / m). First, the substrates, which included control (soil), green algae and spent mushroom compost, were prepared with one to three ratios of organic matter, sand, garden soil, and after preparing the substrates, evening primrose seedlings inside Each of the prepared plots was planted. When the seedlings reached the rosette stage, they were treated by foliar application with nanosilicon. After foliar application, salinity stress was applied. At the end of the growing season, all vegetative an
