In agricultural production, fertilizer is an important substance to promote plant growth. In addition to common chemical fertilizers, natural fertilizers are also becoming more and more popular. Natural fertilizers can not only provide the nutrients needed by plants, but also have the characteristics of environmental protection and safety. Here are a few common natural fertilizers.
Grass ash is an alkaline fertilizer rich in potassium, but also contains calcium, magnesium, sulfur and other elements. Grass ash is suitable for acidic soils, which can neutralize soil acidity and improve soil fertility. When using plant ash, it is necessary to pay attention to the appropriate amount, excessive use will cause the soil to be too alkaline.
3.Humus.
Humus soil is a fertilizer made from organic matter such as fallen leaves and dead grass after long-term decomposition, which is rich in organic matter and various nutrients. Humus soil has excellent porosity and air permeability, which is conducive to the growth of plant roots. When using humus, care needs to be taken to avoid mixing with weeds and pests and diseases.
4.Food waste.
Food waste is an organic fertilizer that can be used for composting. Kitchen waste is piled up in a ventilated and sunny place, and after a period of fermentation and decomposition, it can be applied as fertilizer. Kitchen waste is rich in nutrients such as nitrogen, phosphorus, and potassium, which can improve soil fertility and soil structure.
5.Bone meal.
Bone meal is a phosphate fertilizer made by grinding animal bones. Bone meal can promote flowering and fruiting of plants and improve the plant's disease resistance. When using bone meal, it is necessary to mix the bone meal with the soil evenly and apply it to avoid direct contact with the bone meal by plant roots, so as not to affect the absorption.
In conclusion, there are many types of natural fertilizers, each with its own unique characteristics and scope of application. When choosing natural fertilizers, it is necessary to choose according to the needs of plants and the characteristics of the soil, and use them reasonably to achieve the best fertilization effect. At the same time, it is also necessary to pay attention to the storage and use of fertilizers to avoid waste and pollution of the environment. Through the scientific and rational use of natural fertilizers, we can not only improve the quality and yield of agricultural products, but also promote the sustainable use of soil and the protection of the ecological environment.