With the advancement of the agricultural “transfer festival†work, new fertilizers due to water saving and fertilizer saving have become the focus of attention. Especially in the current hot and rainy season, how to preserve and apply new fertilizers has become a concern of farmers. Today, this newspaper has specially introduced some relevant knowledge in this regard.
New fertilizers should be used like this
Microbial fertilizer: suitable for field crops, vegetables, fruit trees and other economic crops. It can be used as base fertilizer, top dressing, ditch application or acupoint application. It can also be used for seed dressing, soaking, rooting or foliar application, depending on the type of fertilizer.
Agricultural microbial agent: It can be mixed with decomposed organic fertilizer to make base fertilizer, top dressing or seedling; roots or seedlings are transplanted into roots or sprayed seedling roots before transplanting seedlings; the microbial agents are diluted 100 times and used for root irrigation or Drip; dilute the fungicide 500 times for foliar fertilizer.
Compound microbial fertilizer: can be used as base fertilizer and top dressing; diluted 500 times for foliar fertilizer.
Bio-organic fertilizer: can be used as base fertilizer and top dressing. It is best to use the appropriate amount of farmyard manure for the base fertilizer;
Note that the beneficial microorganisms in the bacterial fertilizer are alive. Therefore, it can not be mixed with pesticides, chemical fertilizers and peracids and over-alkali substances during storage. Do not mix with a large amount of chemical fertilizers or acid-alkaline fertilizers. Soil acid, alkali or drought will affect the application effect of bacterial fertilizers.
Soil conditioner: The choice of conditioner mainly depends on the soil improvement target, soil improvement effect and material characteristics of the conditioner. In the case of natural resource conditioners, the application rate can be larger and the range of suitable dosages is wider; while synthetic conditioning agents are much less expensive due to higher potency and cost. The main soil conditioners on the market are: soil water retention agents, brassinolides, and the like.
Humic acid fertilizer: In the application method, the water-soluble solid or liquid product is mainly used as foliar fertilizer, seed fertilizer or soaking and soaking roots. Generally diluted about 800 times. A large amount of elemental humic acid-containing water-soluble fertilizer can also be used for base fertilizer or top dressing, but due to the high cost and limited application amount, it should be applied in combination with farmyard manure and conventional chemical fertilizer.
New foliar fertilizer: It is especially suitable for melons and vegetables with short growth cycle and high economic value. It is suitable for topdressing in the expansion period and before the market. The main fertilizer varieties on the market are: a large number of elements of water-soluble fertilizer, a medium amount of water-soluble fertilizer, an amino acid-soluble fertilizer, a trace element of water-soluble fertilizer, a humic acid-soluble fertilizer, and an organic water-soluble fertilizer.
Slow/controlled release fertilizer
1. Pay special attention to nutrient content, NPK ratio and nutrient release period when purchasing, as a basis for rational application. 2. It is suitable for one-time application of base fertilizer, generally 30-50 kg per acre, separated from the seed, 10-15 cm deep in the side or layered fertilization. 3. For topdressing, advance and appropriate amount.
High temperature application precautions
During the hot and rainy season, the temperature is high, the rainfall is high, the humidity is high, and the fertilizer is decomposed quickly. Pay attention to the application of new fertilizers:
Fertilization time can be postponed appropriately. When applying, try to arrange it at a low temperature in the morning and evening. Fertilizers containing microbial fertilizers and active substances are prone to deactivation and degeneration under high temperature conditions. At the same time, the temperature is high, the fertilizer decomposes quickly, and the organic matter decomposes quickly. After entering the soil, nutrients are easily volatilized, resulting in loss of fertilizer efficiency and waste.
The topdressing of the crop root should be selected in sunny and windless weather. It should be carried out when the temperature is low in the morning and evening and the evaporation intensity is weak. The application time of the foliar fertilizer should not be less than 2 times; pay attention to the watering and fertilization depth. On the other hand, no matter whether you use foliar fertilizer or water-soluble fertilizer, you should try to avoid heavy rain to avoid fertilizer loss.
Storage of new fertilizers
Due to its different characteristics from conventional fertilizers, new fertilizers should pay special attention to the following three points during storage:
Anti-moisture should be stored in a dry and cool room sealed and stored, otherwise it will easily cause moisture dehydration, agglomeration, chemical reaction and other phenomena, reduce fertilizer efficiency, and inconvenient to apply.
Different kinds of fertilizers should be stacked separately, not mixed and scattered, to prevent chemical interactions caused by different fertilizers; new fertilizers containing active ingredients and volatile components should be careful not to mix with other agricultural materials.
Fireproofing and water, high temperature and light protection. New fertilizers should be stored together with combustible materials due to the presence of combustible components in packaging and ingredients. Most of the new fertilizers are soluble or react with water, so leakage should be avoided. Microbial fertilizer should be stored in a dry and clean light-proof space to avoid bacterial infection; it should also prevent direct sunlight and avoid the bactericidal effect of ultraviolet rays in sunlight; keep the temperature low to keep the microorganisms in the fertilizer dormant.
This article URL: How to purchase and use the new fertilizer with zero growth of fertilizer
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