Impact of silkworm excrement organic fertilizer on hemp biomass yield and composition

Abstract

The organic fertilization and ecological farming are becoming increasingly popular and required. The studies on the organic farming of hemp (Cannabis sativa L.) were presented in this article. One of the options of organic fertilizer is the mulberry silkworm (Bombyx mori L.) breeding waste. The breeding of this insect is a cheap source of waste which gives very positive results on the plants yield. In this research, 3 repetition pots were tested: with silkworm fertilizer 15 t/ha, 30 t/ha and pots without fertilization (control). The total length, technical length, panicles length and diameter of hemp were measured. Moreover, the chemical composition of plants with and without fertilization was compared. The mean total length and technical length were highest in 15t/ha of manure dose. In turn, the panicles and the diameter of hemp were highest after 30 t/ha of manure dose.