How Low-Productivity Lands Can Provide Biofuel Through Energy Willow
With the rising prices of traditional energy sources, Ukrainian farmers are increasingly considering the cultivation of energy crops as a promising direction. One of the most effective in this context is energy willow (Salix Viminalis), which is ideally suited for waterlogged or low-productivity lands that are unsuitable for grain crops.
This is reported by AgroReview
This perennial crop can provide a stable yield for up to 25 years, serving as a cheap source of raw material for heating or a source of income from the sale of wood chips. Growing energy willow helps farms effectively utilize low-productivity areas and increase their energy independence.
Establishing the Plantation and Care Features
To achieve maximum results, it is important to choose the right site: energy willow grows best on floodplain lands with high humidity. Soil preparation begins in the fall — deep plowing is carried out, and organic fertilizers are applied. Planting occurs in the spring when cuttings 20–25 cm long are planted in the soil.
Planting density is calculated to ensure that harvesting can be conveniently mechanized in the future. In the first year, special attention is paid to weed control, as young willow shoots are very sensitive to competition. Starting from the second year, the plant forms a dense crown that suppresses weeds on its own. The first industrial harvest is carried out in the third year when the biomass growth reaches its maximum.
Economics of Cultivation and Environmental Benefits
The harvest of energy willow is collected in winter — during this period, sap flow stops, and leaves fall off. Special harvesters are used to cut and shred the stems into chips. An average of 10–15 tons of dry biomass is obtained per hectare each year. At the same time, the costs of maintaining the plantation after its establishment remain low, and the production cost of biofuel is significantly lower compared to gas or coal.
Growing energy willow also has a positive impact on the environment: plantations act as natural filters for groundwater, contribute to humus accumulation, and restore fertility. After the growing cycle is completed (after 25 years), the willow roots can be easily removed, and the field becomes suitable for traditional crops again.
Biomass Potential and Benefits for the Farm
Energy willow is one of the most effective phytocultures for biofuel production: two tons of dry chips replace about 1000 cubic meters of natural gas in energy value.
The advantages of using willow biomass: when burning willow, the carbon dioxide emissions into the atmosphere equal the amount of CO2 that the plant absorbed during its growth, making this type of fuel carbon-neutral. The ash content after burning does not exceed 1–2%, and the resulting ash is a valuable potassium fertilizer that can be returned to the fields. This closes the ecological cycle of production and makes the farm more autonomous and resilient to external market fluctuations.