Cassia trees commonly used organic fertilizers
If you want to learn about the common knowledge of growing flowers and the small experiences of Cassia trees, such as the commonly used organic fertilizers for Cassia trees, the specific content is as follows:
There are nearly a dozen types of organic fertilizers commonly used for Cassia trees, including human and animal manure, compost, cake fertilizer, poultry manure and silkworm dung, and humic acid fertilizers. Organic fertilizers contain a lot of nutrients, but some plants cannot absorb the organic state directly and must be decomposed by microorganisms to convert into soluble nutrients.
Therefore, after applying organic fertilizers, the effect is slow but long-lasting, with some being effective not only in the current year but also having a long-term residual effect. The humic acid in organic fertilizers is nutritionally comprehensive, and it can absorb nutrients such as potassium, sodium, magnesium, and calcium in the soil, preventing these nutrients from being washed away by water.
The humic acid in humus can form a buffer solution that weakens the pH changes in the soil caused by the application of chemical fertilizers, ensuring a normal growth environment for plants. Most organic fertilizers need to be composted before application to be applied to the soil. Only during the composting process, the organic nutrients are decomposed, and plants can absorb and utilize them. If uncomposted fertilizers are applied to the soil, the high temperature and reducing substances produced during decomposition can damage the plant's roots.
The commonly used organic fertilizers for growing Cassia trees include:
(1) Human and animal manure: It can be used as a base or top-dressing fertilizer. When grown in the open field, it can also be used as top-dressing, but it must be thoroughly composted and treated with pesticides to kill insects and bacteria before application.
(2) Poultry manure and farmyard manure: The nutrient content of livestock manure varies, with sheep manure containing the highest amount of nitrogen, phosphorus, and potassium, followed by pig and horse manure, and the least in cow manure. Cow manure has a high water content, decomposes slowly, and has a slow fertilizer effect, known as a cold fertilizer, usually used as a base fertilizer and rarely as top-dressing.
Horse manure has a high fiber content, is loose and porous, and contains a large number of high-temperature fiber-decomposing bacteria that can promote fiber decomposition, producing more heat and maturing faster, known as a hot fertilizer. It can be used as a heat-generating material for warm beds. Pig manure is gentle in nature, has long-lasting effects, and contains more phosphorus and potassium elements. In the south, it is common to apply pig manure to Cassia trees, which ensures flowering. Fresh farmyard manure can be directly applied to improve light or organic-poor soils, usually evenly spread on the ground surface and then incorporated into the soil.
(3) Compost is made from unpolluted garden waste, leaves, weeds, and other waste materials as the main raw materials, mixed with human and animal manure and water, soil, and stacked together, usually used as a base fertilizer.
(4) Green manure refers to any growing green plants that are turned into the soil as fertilizer, especially leguminous plants that have nitrogen-fixing effects. Long-term agricultural workers know that crops cannot be grown in the same place repeatedly. The reason why plants grow better after soybeans have been planted is due to this principle.
(5) Cake fertilizer: The residue left after oil crops are pressed for oil, mainly including soybean cake, cottonseed cake, peanut cake, etc. Cake fertilizer is high in nitrogen and is an excellent organic fertilizer. In flower cultivation, cake fertilizer is usually soaked in water, fully composted, and then watered into the soil.
(6) Poultry manure and silkworm dung: Chicken, duck, goose, pigeon dung, etc., contain the highest content of nitrogen, phosphorus, and potassium, usually used as a base fertilizer but can also be used as top-dressing. Silkworm dung is a high-efficiency fertilizer containing 78% to 88% organic matter, 2.2% to 3.5% nitrogen, 5% to 7.5% phosphorus, and 2.4% to 3.4% potassium. The application method is the same as that of poultry manure.
(7) Humic acid fertilizers: Peat, which is the residual body of plants after years of deposition, such as the "turret" in swamps that retain plant residues and have a fibrous and loose structure. Processed into humic acid fertilizers, it is an ideal fertilizer for growing Cassia trees.
(8) Mud fertilizer: The fertile silt in rivers, ponds, ditches, and lakes is collectively called mud fertilizer. Mud fertilizer is a cold fertilizer, and in order to quickly convert the nutrients and eliminate the harmful reducing substances produced by long-term anaerobic conditions, the excavated mud fertilizer is spread out and dried for a period before being crushed and applied.
(9) Miscellaneous fertilizers: Bone meal, hoof meal, fish meal, and plant ash. These fertilizers have relatively high nitrogen, phosphorus, and potassium content and are suitable for application in acidic soils. Hooves and horn materials are difficult to dissolve and decompose, so they can be soaked in water to ferment and mature, and the clear liquid is taken and diluted with water for application.
The above is the complete introduction to the commonly used organic fertilizers for Cassia trees, hoping it can be helpful to you. Don't forget to check out more flower-growing experience and common sense!