One. What kind of fertilizer is used for planting salvia

1. Planting salvia can use organic fertilizer, potassium sulfate compound fertilizer, decomposed farmyard manure, etc., which can supplement the nutrients required by different growth stages of salvia, promote the good growth of salvia, and help improve the quality and yield of salvia. Organic fertilizer refers to organic matter. , Can provide a variety of organic and inorganic nutrients for Danshen, and can also improve the soil environment.

2. Potassium sulfate type compound fertilizer is mainly produced by low-temperature conversion of potassium chloride, chemical synthesis, and spraying process. It has good fertilizer efficiency and contains S, Ca, Mg, Zn, Fe, Cu and other medium and trace elements also contain the three main nutrient elements of N, P and K, which are suitable for planting various economic crops, especially chlorine-free crops.

3. The main components of potassium sulfate type compound fertilizer are monoammonium phosphate and diammonium phosphate. Ammonium sulfate is mainly extracted by low-temperature conversion of excess sulfuric acid and gas ammonia, potassium sulfate, urea, etc., as well as other minor impurities such as Calcium sulfate, phosphoric acid, iron, aluminum, magnesium, etc., as well as salt and a small amount of potassium chloride that has not reacted completely.

Two. Fertilization method for planting salvia

1. Fertilize cultivated land

Before arable land can be sprayed with 150g soil activator and 100g humic acid per acre, and then deep plow the soil to 25-30cm to supplement the organic matter content in the soil, as well as dissolve pesticides, fertilizers, and harmful substances remaining in the soil. In the past, 8000 kilograms of high-quality decomposed farmyard manure, 200 kilograms of calcium magnesium phosphate fertilizer or superphosphate per mu can be applied. Salvia is a plant that loves potassium and organic fertilizer. The base fertilizer needs to be applied with long-term stable manure, cake fertilizer and chemical fertilizer based on phosphate fertilizer.

2. The amount of fertilizer used

Generally, 10,000 catties of decomposed farm manure, 40 catties of diammonium phosphate or 100 catties of superphosphate per acre can be applied, and then the soil is deepened to 30-40cm. It is necessary to break the bottom of the plow to facilitate the growth and development of rhizomes. In the second and third years After sprouting three years in the spring, about late April, topdressing cake fertilizer or high-quality decomposed farmyard fertilizer.

3. Weeding and top dressing

In the later period, it can be combined with field tillage and weeding and topdressing to apply 3 times of fertilizer. The first time you can apply about 20 kilograms of nitrogen per mu, which is beneficial to the growth of seedlings. The second time you can apply about 20 kilograms of compound fertilizer per acre. Approximately 20 kilograms of potassium fertilizer can be used to promote the plumpness of seed particles. For the third time, an appropriate amount of phosphate fertilizer and potassium fertilizer can be applied per acre, which is conducive to the growth of Danshen roots.