What is organic matter in fertilizer, and what types are there?
Do you know the selection and application techniques of organic matter fertilizers? If not, then take a look at this article and learn about it. This way you can fertilize crops better. Choose according to soil conditions. You can send soil samples to an improvement station to analyze the soil's organic matter.
Do you know the selection and application techniques of organic matter fertilizers? If not, then take a look at this article and learn about it. This way you can fertilize crops better.
Choose according to soil conditions
The decision can be made based on the soil organic matter content situation analyzed after sending soil samples to an improvement station. If the soil organic matter content is less than 1%, organic fertilizers rich in organic matter should be selected, and only after considering their price can they be applied broadly across the entire layer in large amounts. If the soil organic matter content is greater than 3%, except on gravelly land, application should be done in moderation. From an economic benefit standpoint, planting green manure crops during fallow or idle periods is the most economical and effective method.
It is necessary to understand the characteristics of organic matter fertilizers
Organic matter fertilizers formed through composting and decomposition can be roughly divided into two types: easily decomposed and difficult to decompose. The former generally consists mainly of poultry and livestock manure, animal waste, oilseed meal, etc., contains less fiber, has high content of the three major elements nitrogen, phosphorus, and potassium, and the nutrients it contains decompose and release relatively quickly in the soil. The latter uses rice grain, tree bark, wood shavings, crop residues, etc. as materials, is rich in fiber, but has relatively low content of the three major elements nitrogen, phosphorus, and potassium, decomposes more slowly in the soil, and is suitable for improving soil physical and chemical properties and promoting soil microbial activity, so that crop roots have a good growing environment.
According to crop type and fertilization characteristics
Crops with larger plants and longer growth periods require more fertilizer. For short-term crops, organic fertilizers applied as base fertilizer should be selected with high decomposition degree, and nutrient supply, especially nitrogen fertilizer, must be sufficient. For long-term crops such as fruit trees, attention should be paid to improving soil properties, promoting root activation in coordination with each growth differentiation stage, and regulating nutrient supply.
According to terrain and environmental conditions
The application of organic matter fertilizers should implement three-dimensional fertilization, digging trenches or holes for application, then backfilling with soil. If the cultivated land is soil with relatively many gravel stones and manpower limitations prevent digging trenches for application, it is better to choose block-shaped or granular organic matter fertilizers. Liquid organic matter fertilizers can be applied by sprinkler irrigation.
Pay attention to quality
If organic matter fertilizers have not been fermented, after application they easily continue fermenting in the soil, producing substances harmful to crop roots and breeding pathogens. For commercially sold organic matter fertilizers, attention should be paid to whether there is heavy metal content. For example, poultry and livestock manure often contains substances from feed additives, such as copper and zinc, and long-term application will cause accumulation of heavy metals, so selection and use must be carefully noted.
Coordinate with water management
In orchards, sprinkler irrigation facilities should be installed, and water supply should be adjusted in a timely manner so that soil moisture remains in a suitable state, which is beneficial to microbial activity, decomposes compost and releases nutrients, benefits crop root absorption of nutrients, and improves the utilization rate of compost nutrients.