Fertilizer Market Variety of Spring Cultivation Fertilizers
In the season of ploughing, local farmers are busy buying agricultural products such as chemical fertilizers, pesticides and seeds. At present, there are many varieties of fertilizers sold in the agricultural resources market, and new types of fertilizers are emerging in an endless stream. When a farmer friend purchases, he must first understand the functional characteristics of various fertilizers, and then correctly select and use them according to the local soil characteristics and specific soil conditions:
New fertilizer
The special formula fertilizer can be used as base fertilizer, and can also be applied as top dressing according to the crop growth needs. Some regions have formulated and issued formulas for soil testing, formula and fertilization of major crops, which can be used as specific fertilizers for crops such as wheat, corn, vegetables, fruit trees, potatoes, sweet potatoes, soybeans, etc. Farmers can use their own regions and crop cultivation types and crops. During the growth phase, choose the appropriate formula fertilizer.
Organic fertilizer
Generally used as base fertilizer, it can also be used as fertilizer. In terms of usage, according to different soil fertility recommendations are also different, for high fertility new vegetable fields, can be used to control the amount of refined organic fertilizer 300-500 kg / acre; medium fertility new vegetable field can be applied 1 ton of refined organic fertilizer; low; Fertilizer new vegetable fields to strengthen fertility, acres of refined organic fertilizer about 1-2 tons. When organic fertilizer is used as the base fertilizer, combined with a small amount of NPK fertilizer or P and K fertilizers, the effect of applying the base fertilizer will be better. Organic-inorganic compound fertilizers have a high nutrient content, and the amount of base fertilizer should be less than that of refined organic fertilizers. In the middle period of crop growth, top-dressing can also be applied according to the situation.
Water soluble fertilizer
Conventional water-soluble fertilizers contain all the nutrients needed for crop growth, such as NPK and various trace elements. When applied, formulas can be designed based on the nutritional requirements needed for crop growth to avoid unnecessary waste; due to the rapid fertilizer efficiency, fertilizer formulations can be adjusted at any time based on crop growth.
Trace element fertilizer
The application of trace fertilizer should be based on the lack of trace elements in the soil, what is lacking, and should not be applied blindly or excessively; it should be applied according to the pH of the soil; and it should be applied according to the response of the crop to trace elements; according to the weather conditions Supplement the corresponding trace elements. Temperature and rainfall affect the release of trace elements in the soil and their absorption by crops.
Microbial fertilizer
Eligible products should be used during application to minimize the death of microorganisms, create a suitable soil environment, select different types according to local conditions, and avoid mixing with unripe farmyard fertilizer under high temperature and drought conditions. At present, Nanguoguobei species of plant protection sites need to use such fertilizers to regulate soil pH.
Slow and controlled release fertilizers
The so-called slow and controlled release fertilizer refers to the nutrient initially released slowly through various regulatory mechanisms to extend the effective period of the crop's effective nutrient absorption and utilization, so that the nutrient is set according to the release rate and release period of slow or controlled release fertilizer. This fertilizer has the advantages of increasing the utilization of chemical fertilizers, reducing the amount of use and the number of fertilizers, reducing production costs, reducing environmental pollution, and improving the quality of crop products. The outstanding feature is that the release rate and release period are organically combined with the crop growth rules, thereby making the fertilizer The effective utilization of nutrients increased by more than 30%. Controlled-release fertilizers are coated with a special membrane in the outer layer of traditional fertilizers. According to the crop nutrient requirements, controlled release of nutrient release rate and release amount, the nutrient release curve is consistent with the crop demand. The outstanding characteristic of this fertilizer is to supply effective nutrients synchronously according to the crop growth curve, so that the effective utilization of fertilizer nutrients is greatly improved. Under the premise of ensuring crop growth, the fertilizer efficiency utilization rate can be increased by more than 30% compared with the same concentration of fertilizer. , can greatly reduce the amount of traditional fertilizer. Slow and controlled release fertilizers are mostly used as base fertilizers, and most crops can be applied once to meet the nutrient requirements for the entire growing season of the crop.
Soil conditioner
Soil conditioning agent is made of agricultural water-retaining agent and natural peat or other organic matter rich in organic matter and humic acid, supplemented by biological active ingredients and nutrient elements, and processed by scientific process, which is extremely significant " Water retention, fertilizer increase, and breathability, three major soil conditioning properties. Can break the soil compaction, loosen the soil, improve soil permeability, reduce soil bulk density, promote soil microbial activity, enhance soil fertility and water infiltration; have improved soil, control desert, conserve water and drought, enhance crop disease resistance, increase crop yield, improve agricultural products Quality, restoration of the original ecological functions of crops, etc., greatly improve the survival rate of trees and the output of agricultural products; improve the quality of agricultural and forestry products, and restore the natural appearance of agricultural and forestry products. It is completely pollution-free, non-polluting, and free from biological hormones. Unlike other fertilizers, pesticides, foliar fertilizers, and biological hormones on the international market, it is a new type of green production data for agroforestry in the world.
Humic acid soil conditioners improve soil physical, chemical, and microbial reactions and increase soil fertility. The main components of humic acids in peat are humic acid and fulvic acid, which have been shown to promote root development and beneficial microbial activity. Simply put, humic acid soil conditioner can help the soil release all kinds of nutrient elements that are beneficial to plant absorption, control soil consolidation, desertification, salinization, increase soil permeability, increase soil water retention and fertility, and reduce soil Evaporation of water increases the cation exchange capacity of the soil, promotes better absorption of trace elements by plant roots, facilitates the chelation of iron, magnesium, zinc, and copper by plants, and reduces Na+ absorption in salt-absorbed soils.
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