Comparative evaluation of zeolite and vermiculite in vegetation experiment

Ana Katsarova, Nikolai Dinev, Svetla Marinova

Резюме: One of the most challenging topics for sustainable agriculture is how to decrease high fertilization rates. Soil amendments are being sought to overcome soil problems, such as acidity, pollution, etc., but also to increase and preserve their fertility.
In a vegetation experiment exploring the effects of natural zeolite and enriched vermiculite as soil amendments was realized in lettuce plants. Parameters related to soil fertility, and plant growth and nutrition were investigated to gain knowledge towards more sustainable management. The highest yield of lettuce was obtained in the vessels with imported 1% zeolite. The levels of total nitrogen and potassium in the plants are higher in the variants with 5% and 10% zeolite. After the introduction of various norms of natural zeolite, a strong increase in the potassium available to plants in the soil was reported.
The data show that the application of natural zeolite and enriched vermiculite in the soil can partially reduce the level of applied mineral fertilizers.

Ключови думи: pot experiment; vermiculite; yield structure; zeolite

Дата на публикуване: 2021-11-05