High-yield and high-efficiency agricultural crops account for about 70% of the total amount of fruits and vegetables grown in greenhouse vegetables. The long-term use of chemical fertilizers to boost output growth has led to the economic benefits that many planting individuals have come to expect. Be aware of the protection of the environment. Such long-term consciousness has not been well corrected. Instead, the effect of increasing output has become smaller and smaller. The efficiency of the use of fertilizer nutrients has been reduced. More importantly, the environment has been destroyed. Therefore, the soil fertilizers can be tested in advance. After the meter's measurement, reasonable fertilization will bring about different results.
Since the phenomenon of blind fertilization of greenhouse vegetables is very common, without the use of scientific instruments such as soil fertiliser detectors, or consciousness has not been well corrected, there have been varying degrees of salt problems in greenhouse soils. Due to the occurrence of salt damage in the soil, the growth of vegetables in the glass greenhouse occurs in 2 to 3 years. Plastic greenhouses have different degrees of obstacles in about 5 years. The early stage of vegetable damage shows the growth of plants with short stature; in severe cases, the plants cannot stand, and the plants wither and die. .
Soil nutrient parameters determine the use of fertilizer varieties, application rates, and application methods. In order to achieve the greatest economic, social, and ecological benefits of agricultural production, it is important to pay attention to the investigation of soil nutrients in cultivated land. County and township agro-technical extension departments should establish a rapid-test diagnostic technology system related to soil fertilizer detector as soon as possible, and vigorously develop new technologies for soil fertilizer testing with strong timeliness, low cost, quick results, and easy operation. According to the characteristics of fertility and crop nutrient abundance indicators, scientific and rational investment in fertilizer.
Increase the experiment, demonstration and promotion of scientific fertilization: Agricultural science and technology promotion departments should make investigations, formulate standards for crop fertilization, study the agricultural environment of soil nitrogen pollution through soil fertility detectors, and propose a new center for efficient use of nitrogen fertilizer pollution prevention and control. technology. In order to strengthen research on organic fertilizers and promote the use of biological fertilizers, organic fertilizers and bio-fertilizers can be used in areas where conditions permit, to increase soil organic matter, improve soil structure and crop nutrient status, improve soils, increase crop yields, and improve the quality of agricultural products.
Since the phenomenon of blind fertilization of greenhouse vegetables is very common, without the use of scientific instruments such as soil fertiliser detectors, or consciousness has not been well corrected, there have been varying degrees of salt problems in greenhouse soils. Due to the occurrence of salt damage in the soil, the growth of vegetables in the glass greenhouse occurs in 2 to 3 years. Plastic greenhouses have different degrees of obstacles in about 5 years. The early stage of vegetable damage shows the growth of plants with short stature; in severe cases, the plants cannot stand, and the plants wither and die. .
Soil nutrient parameters determine the use of fertilizer varieties, application rates, and application methods. In order to achieve the greatest economic, social, and ecological benefits of agricultural production, it is important to pay attention to the investigation of soil nutrients in cultivated land. County and township agro-technical extension departments should establish a rapid-test diagnostic technology system related to soil fertilizer detector as soon as possible, and vigorously develop new technologies for soil fertilizer testing with strong timeliness, low cost, quick results, and easy operation. According to the characteristics of fertility and crop nutrient abundance indicators, scientific and rational investment in fertilizer.
Increase the experiment, demonstration and promotion of scientific fertilization: Agricultural science and technology promotion departments should make investigations, formulate standards for crop fertilization, study the agricultural environment of soil nitrogen pollution through soil fertility detectors, and propose a new center for efficient use of nitrogen fertilizer pollution prevention and control. technology. In order to strengthen research on organic fertilizers and promote the use of biological fertilizers, organic fertilizers and bio-fertilizers can be used in areas where conditions permit, to increase soil organic matter, improve soil structure and crop nutrient status, improve soils, increase crop yields, and improve the quality of agricultural products.
Transmission Line Steel Tubular Tower
Our steel poles are made from quality sheet through bending,
forming, automatic welding and hot galvanization. We can reach one-run
machining length of 14m and can bend sheet of thickness up to 45mm. We
adopt advanced welding procedures, automatically weld main joints and
reach rank-II welding quality. We
have got 500kV Transmission Line Tubular Tower Quality Certificate from Power
Industry Steel Tower Qualified Inspection & Test Center from 2009
year.
Transmission Line Steel Tubular Tower, Transmission Line Tower, Steel Tubular Tower, Mono Steel Tower
Jiangsu Xinjinlei Steel Industry Co., Ltd. , https://www.steel-pole.com