Customer Testimonials

　　Organic fertilizers are fertilizers made from raw materials primarily composed of organic matter-rich byproducts such as animal excrement or plant and animal remains, after fermentation and composting. Organic fertilizers have the characteristics of improving soil, enriching soil fertility, enhancing soil nutrient vitality, purifying the soil ecological environment, and ensuring high-quality, high-yield, and high-efficiency vegetable production. They are irreplaceable fertilizers in protected vegetable cultivation. Commonly used organic fertilizers in protected vegetable cultivation mainly include commercial organic fertilizers and farmyard manure.

　　With the increasing modernization of agriculture, organic food has received more and more attention from people. Along with this, there is increasing emphasis on ecological agriculture, because only ecological agriculture can produce ecological food. In this aspect, the country has invested a great deal of support, both in terms of policy support and in practical actions. The widespread application of organic fertilizers that we understand is a prime example. It can be said that organic fertilizers will gradually replace other fertilizers and become an essential fertilizer in crop growth.

　　In the production of organic fertilizers, many experts have provided strong support. At the same time, there is also strong support in terms of equipment from the country. Many places now have specialized equipment and production lines for organic fertilizer production to produce better organic fertilizers. In terms of policy support, many local governments have also provided a great deal of assistance. In particular, there is strong support in utilizing waste materials and processing discarded daily necessities, because this not only addresses waste, reducing environmental pollution, but also turns waste into treasure by producing valuable organic fertilizers. In many places, this is a very good initiative, and therefore many local governments provide strong support for the production and use of organic fertilizers, and even provide some economic subsidies to encourage people to use them.

　　It can be said that it is the widespread use of organic fertilizers that allows our agriculture to gradually transition towards harmless agriculture, and allows more organic food, fruits, and vegetables to reach our tables.

　　With economic development and the acceleration of urbanization, there has been a surge in urban populations, and urban pollutants are also increasing continuously. In fact, urban pollutants can be processed into organic fertilizers. Organic fertilizers are essential for organic agriculture and ecological agriculture; they can improve soil properties, enhance soil fertility, increase the yield and quality of agricultural products, and also curb environmental pollution. It is recommended that the government increase investment, and in the planning of urban construction, design a system for the classification and treatment of urban pollutants, and develop this as a new industry, processing urban pollutants into inexpensive, easily transportable organic fertilizers—turning waste into treasure to serve agriculture.

　　Organic fertilizers contain abundant organic matter and various nutrient elements, with the advantages of large quantities, wide sources, and comprehensive nutrients; however, they also have disadvantages such as being dirty, smelly, unhygienic, having low nutrient content, slow effectiveness, and being inconvenient to use. Inorganic fertilizers are the opposite; they have high nutrient content, rapid effectiveness, and ease of use, but also the shortcoming of single nutrient components. Therefore, the application of organic fertilizers usually needs to be combined with chemical fertilizers to fully exert their benefits. The combined application of organic and chemical fertilizers can make up for each other’s shortcomings and achieve a balance. Organic fertilizers inherently have the functions of improving soil, enriching soil fertility, increasing yield and improving quality, and these functions are further enhanced with the combined application of chemical fertilizers. Since the use of chemical fertilizers in agricultural production, the combined application of organic and chemical fertilizers has objectively existed, although it was initially a blind combination and was not yet perfect. Since the 1970s, chemical fertilizers have developed rapidly in China. Through the research of many scientific workers and the practice of a large number of farmers, fertilization methods such as soil testing and fertilization, and formula fertilization have been successively promoted and applied in production, making the combined application of organic and inorganic fertilizers more perfect.

　　Improving soil and enriching soil fertility

　　The main substance in organic fertilizers is organic matter. The application of organic fertilizers increases the organic matter content in the soil. Organic matter can improve the physical, chemical, and biological properties of the soil, mature the soil, and enrich its fertility. The Chinese rural proverb, “Land relies on manure for nourishment, seedlings rely on manure for growth,” reflects to some extent the role of applying organic fertilizers in improving soil. Applying organic fertilizers not only adds many organic colloids, but also, with the help of microorganisms, decomposes and transforms many organic substances into organic colloids, which greatly increases the soil adsorption surface and produces many adhesive substances, causing soil particles to aggregate into a stable granular structure, improving the soil’s water retention, fertilizer retention, and air permeability, as well as its ability to regulate soil temperature.

　　With the application of 3500-7000 kg of organic fertilizer alone, after 9 years, soil organic carbon increased by 0.04%-0.16%, bulk density decreased by 0.04-0.06 g/cm3, total porosity increased by 1.5%-2.3%, capillary porosity increased by 3.45%-4.05%, and field water holding capacity increased by 1.13%-1.31%. After the combined application of 9.2-18.4 kg of urea, the above indicators were significantly improved compared with the treatment of single application of organic fertilizer. Organic carbon increased by 0.09%-0.19% compared with the control, bulk density decreased by 0.03-0.1 g/cm3, total porosity increased by 1.1%-3.8%, capillary porosity increased by 3.45%-5.0%, and field water holding capacity increased by 2.49%-4.24%.

　　The results of a 9-year experiment on the application of organic fertilizers and the combined application of organic and inorganic fertilizers conducted by the Soil and Fertilizer Institute of the Chinese Academy of Agricultural Sciences and Laiyang Agricultural College in Laiyang, Shandong, show that the application of organic fertilizers plays a very important role in the balance of phosphorus and potassium nutrients in the soil.

　　Note: CK-No fertilizer control; N1-9.2 kg N/mu; N2-18.4 kg N/mu; M1-3500 kg/mu organic fertilizer (pure N 9.2 kg); M2-7000 kg/mu organic fertilizer (pure N 18.4 kg); M1N1, M1N2, M2N1, M2N2-Different amounts of organic fertilizer and inorganic nitrogen fertilizer combined treatments.

　　In treatments with single application of nitrogen fertilizer, single application of low-amount organic fertilizer, or low-amount organic fertilizer combined with nitrogen fertilizer, phosphorus in the soil was deficient. The former was more deficient than the latter. Only treatments with high amounts of organic fertilizer and high amounts of organic fertilizer combined with chemical fertilizers showed surplus phosphorus in the soil. Similar to the changes in soil phosphorus, compared with the control, the average soil available potassium content in each treatment over 9 years showed almost no difference in treatments with single nitrogen fertilizer application. In treatments with single low-amount organic fertilizer application and low-amount organic fertilizer combined with nitrogen fertilizer, available potassium increased by 6-7 mg/kg. In treatments with high-amount organic fertilizer application and combined nitrogen fertilizer application, available potassium increased by 11 mg/kg. This shows that the application of organic fertilizer is very important for the balance of soil phosphorus and potassium. The nitrogen, phosphorus, and potassium ratios are unbalanced in Chinese chemical fertilizer production, with nearly 300 million mu of cultivated land lacking potassium and 1 billion mu lacking phosphorus.

　　Using organic fertilizers can also lead to a large increase in soil microorganisms, especially many beneficial ones such as nitrogen-fixing bacteria, ammonifying bacteria, cellulose-decomposing bacteria, and nitrifying bacteria. Organic fertilizers contain various active enzymes secreted from the animal digestive tract, as well as various enzymes produced by microorganisms. When these substances are applied to the soil, they can significantly increase the soil's enzyme activity. Applying more organic fertilizers can improve soil activity and biological reproduction and conversion capacity, thereby enhancing soil absorption, buffering, and resilience.

　　The role of increasing crop yields and improving the quality of agricultural products

　　Organic fertilizers contain a large number of nutrients that plants need, various trace elements, sugars, and fats. Analysis shows that pig manure contains 2.91% total nitrogen, 1.33% total phosphorus, 1.0% total potassium, and 77% organic matter. Livestock and poultry manure contains 21.7-24 mg/kg of boron, 29-290 mg/kg of zinc, 143-261 mg/kg of manganese, 3.0-4.2 mg/kg of molybdenum, and 29-290 mg/kg of effective iron. Long-term field experiments conducted by the Soil and Fertilizer Institute of the Chinese Academy of Agricultural Sciences and Laiyang Agricultural College in Shandong Province showed the yield statistics for 18 crop seasons over 9 years (Table 3-3). Table 3-3 shows that applying nitrogen fertilizers alone (N1 and N2), organic fertilizers alone (M1 and M2), and a combination of organic and inorganic fertilizers (M1N1, M1N2, M2N1, M2N2) can effectively increase wheat and corn yields, and yields increase with the amount of fertilizer applied. In treatments using a combination of organic and inorganic fertilizers, crop yields were significantly higher than those with single application of chemical fertilizers or organic fertilizers alone. With single application of organic fertilizers, the average annual yield over 9 years increased by 54.7% to 107.7% compared to the control, while with a combination of organic and inorganic fertilizers, the average yield over 9 years increased by 130.8% to 153.3% compared to the control. This shows that combined application of organic and inorganic fertilizers is an important way to achieve high and stable yields. Calculated in terms of nitrogen, the ratio of organic nitrogen to inorganic nitrogen is preferably 1:1 to 2:1.

　　Research by Wang Xiaoping and others from the Soil and Fertilizer Institute of the Chinese Academy of Agricultural Sciences on the effect of organic fertilizers in reducing heavy metal pollution shows that when the chromium content in the soil is 10 mg/kg, there is no significant effect on the emergence of Chinese cabbage, but it greatly affects the growth and development of Chinese cabbage, even causing seedling death. The lowest yield was 155 g/pot without organic fertilizer. Applying a small amount of any type of organic fertilizer (chicken manure, horse manure, sheep manure, pig manure) significantly reduced or even eliminated the toxic effects on Chinese cabbage. The highest yield was achieved with the treatment using 5% pig manure and 2.5% chicken manure, respectively reaching 2180 g/pot and 2590 g/pot. Measurements on the changes in chromium concentration in soil at different concentrations show that in the treatment with pure chemical fertilizer, the chromium content in the soil water remained high. After adding pig manure, the initial soil chromium content was 50 mg/kg, decreasing to 2-3 mg/kg after 8 days. In the treatment without organic fertilizers, the chromium content in Chinese cabbage was as high as 29.7 mg/kg. With the addition of organic fertilizer, the chromium content in Chinese cabbage decreased sharply to the normal range of 0.1-0.3 mg/kg. This clearly demonstrates that applying organic fertilizers can effectively reduce the toxic effects of chromium-contaminated soil on crops. Similar results were obtained when corn was grown in chromium-contaminated soil.

　　Organic fertilizers are the main source of fertilizers for producing green food

　　The production of pollution-free, safe, and high-quality green food was first welcomed in countries with higher living standards such as Western Europe and the United States. Although the Price of green food is 50% to 200% higher than that of ordinary food, it is still very popular. In recent ten years, the living standards of the Chinese people have rapidly improved, and the demand for green food is increasing day by day. Coupled with the advocacy and emphasis of government departments, the production and development of green food in China have developed rapidly.

　　The "Basic Standards for Organic Agriculture and Food Processing" (IFOAM) includes regulations on fertilizer use. The main points are: "Promote natural systems and biological recycling, so that a sufficient amount of organic matter returns to the soil to maintain and increase soil organic matter, soil fertility, and soil biological activity"; "Inorganic fertilizers are only considered as supplements to nutrient cycling, not substitutes"; "The use of chemically synthesized fertilizers and chemically synthesized growth regulators must be limited to avoid adverse effects on the environment and crop quality, and to prevent the accumulation of toxic substances in crop products to levels that affect human health.". These regulations indicate that in green food production, it is necessary to pay great attention to protecting a good ecological environment and to limit the excessive use of inorganic fertilizers. Organic fertilizers (including green manure and microbial fertilizers) are the main source of fertilizers for green food production.

　　The advantages and problems of using organic fertilizers have been discussed earlier. To ensure that green food production has a sufficient quantity of organic fertilizers that meet the requirements, the following aspects must be addressed.

　　①To ensure sufficient organic fertilizer resources, existing organic fertilizer resources must first be utilized well, and a large amount of farm manure must be produced, and the phenomenon of discarding livestock and poultry manure, drying manure, and burning straw everywhere must be stopped.

　　②The collection of organic fertilizer materials mainly includes human and animal excreta, oil cakes, food processing by-products, straw, peat, mountain green, lake grass, etc.

　　③Organic fertilizers can be processed in various ways, and various organic fertilizers produced must meet the following standards.

　　A.The composting maturity must meet the comprehensive indicators of compost maturity identification. That is, for mature compost, the volume of the compost heap has collapsed by 1/3 to 1/2 compared to when it was first piled up, the straw in the compost has turned dark brown, has an ammonia smell, the straw is soft when wet and easily broken when dry. The color of the compost leachate is yellowish-brown, the C/N ratio is 20-30:1, and the humification coefficient is about 30%.

　　B.All types of organic fertilizers must meet the harmless hygiene indicators for manure.

　　1.Composting temperature: The maximum composting temperature reaches above 50-55℃ and lasts for 5-7 days.

　　2. Ascaris egg mortality rate: 95%-100%

　　3. Coliform value: 10-1～10-2

　　4. Flies: Effectively control the breeding of flies, and there are no live maggots, pupae, or newly hatched adult flies around the compost heap.

　　Cited from "Sanitary Inspection Method for Compost and Manure" 1976

　　1.Sealed storage period: More than 30 days

　　2.Fermentation temperature: 53℃±2℃ for 2 days

　　3.Parasite egg sedimentation rate: 95% or more

　　4. Schistosome and hookworm eggs No live schistosome and hookworm eggs shall be detected in the fecal liquid.

　　5. Fecal coliform value Ordinary biogas fermentation is greater than 10-4, high-temperature biogas fermentation is 10-1～10-2

　　6. Mosquitoes and flies Effectively control the breeding of mosquitoes and flies, no wrigglers in the fecal liquid, and no live maggots or newly hatched adult flies around the pool.

　　7. Biogas pool sludge Needs to be treated harmlessly before it can be used as fertilizer.

　　Cited from "Sanitary Inspection Method for Compost and Manure" 1976

　　4. Compost needs to pass through a 12mm sieve to remove large pieces of bricks and rubble. Impurities in the compost product (including plastics, glass, metal, rubber, etc.) shall not exceed 3%, the pH value shall be controlled at 6.5～8.5, and the water content shall be at 25%～35%.

　　⑤ Organic fertilizers are generally used as base fertilizers. 各地可根据不同土壤肥力，不同作物，不同的肥料质量来确定施肥量。目中国农村的有机肥用量在304吨/亩。饼肥对提高西瓜、烟草、水果、蔬菜的品质有很好的作用。生产绿色食品可适当多用饼肥。腐熟的，达到无害化要求的沼气肥水，人畜粪尿可作追肥，严禁在蔬菜等作物上浇不腐熟的人粪尿。

　　⑥ The raw materials for making farm fertilizers are all natural products, with very low levels of harmful heavy metals, and are unlikely to cause heavy metal harm. The key is to prevent materials containing heavy metals from being mixed in when collecting organic fertilizer materials.

　　⑦ According to local natural conditions and planting systems, select suitable green manure varieties, vigorously develop green manure, and make rational and scientific use of green manure.

　　⑧ Develop ecological agriculture and create a good ecological environment.

　　Following ecological laws and creating a good ecological environment are essential conditions for producing green food. Ecological agriculture has the characteristics of integrated operation and multiple use of agricultural resources, which can avoid and even eliminate vicious cycles, eliminate pollution, promote benign cycles, and obtain good economic, environmental, and social benefits. Organic matter circulation runs through the entire ecological agriculture.

　　⑨ Rational application of chemical fertilizers: Applying chemical fertilizers can effectively increase crop yields. However, improper use can easily pollute the environment. The proportion of nitrogen, phosphorus, and potassium chemical fertilizers produced in China is seriously unbalanced. The utilization rate of chemical nitrogen fertilizer is only about 30%, and about 70% of nitrogen is lost through surface runoff, etc. The utilization of chemical phosphorus and potassium fertilizers is also only about 35%. Therefore, the pollution of chemical fertilizers to the environment is quite serious, reflected in the enrichment of nitrogen and phosphorus nutrients in surface water, exceeding the standard of nitrates in groundwater and food. To prevent fertilizer pollution and ensure high crop yields, the key lies in increasing the amount of organic fertilizer, rationally controlling the amount of chemical fertilizer applied, adjusting the proportion of nitrogen, phosphorus, and potassium fertilizers, and implementing deep application of chemical fertilizers.

　　Issues to note in the application of organic fertilizers

　　First, it is important to understand that while organic fertilizers are very effective, they are not a panacea. The nutrients contained in organic fertilizers are not balanced and cannot meet the needs of high-yield and high-quality crops. Therefore, when applying organic fertilizers, chemical fertilizers can be applied as required, and various foliar fertilizers can be applied during crop growth.

　　Second, compared with other fertilizers, organic fertilizers decompose relatively slowly and have a delayed effect. Although its nutrient element content is comprehensive, the content is low, and it decomposes slowly in the soil. Therefore, experts suggest that organic fertilizers should be used in combination with chemical fertilizers to make up for each other's shortcomings and give full play to their respective advantages.

　　Third, generally speaking, it is best to ferment organic fertilizers before use. Because many organic fertilizers carry bacteria, insect eggs, and weed seeds, which are not conducive to the healthy growth of crops, they must be processed before use.

　　Fourth, the last point is the precautions for the use of organic fertilizers. Fully decomposed organic fertilizers should not be mixed with alkaline fertilizers. If mixed with alkaline fertilizers, ammonia will volatilize, reducing the nutrient content of organic fertilizers and leading to nutrient imbalance. At the same time, bio-organic fertilizers contain a large amount of organic matter and should not be mixed with nitrate ammonia fertilizers.