PLANT-GROWING BRIQUETTE Russian patent published in 1995 - IPC

FIELD: agriculture. SUBSTANCE: briquette comprises a central portion and two sides connected thereto by T-shaped bars made of fertilizer with microelements of prolonged effect. Said sides adjoin the side surfaces in the center. Vertical part of each T-shaped bar is arranged horizontally in a through hole of the briquette while the horizontal part of each bar is disposed vertically in each side. The ends of horizontal parts of T-shaped bars are in contact with each other in the middle of the central part of the briquette while the end of each end portion of said T-shaped bars has a hollow accommodating a permanent magnet having a flexible link, one end of which is brought out beyond the limits of the briquette. The upper part of the central portion of the briquette is wedge-shaped while the upper part of each side of the briquette has a chamfer facing towards the central portion of said briquette. EFFECT: higher reliability of connecting the briquette parts and more favorable conditions for the development of plant roots in the briquette. 4 cl, 2 dwg