After more than ten years of continuous planting, green moss or red moss begins to appear in the greenhouse soil, and the red moss is more serious than the moss. However, in recent years, some new sheds have been growing for 2-3 years or even 1 year, and this phenomenon has become more and more, so it has also attracted the attention of the majority of growers. Then let's analyze together what causes the moss and red moss in the soil. There are three reasons for this phenomenon: 1. Soil acidification Most of the soil in the north is neutral or alkaline. However, due to the long-term use of inferior acidic fertilizers, the soil pH decreases and becomes acidic. The pH of some areas is determined to fall below 3.0, but most of our crops are suitable for growth. The PH range is between 5.5 and 7.5. It is conceivable that in such an acidic environment, how can our crops grow? 2. Soil salinization During the base fertilizer period, many of our growers will use manure such as chicken manure as the base fertilizer, or use some fertilizers with higher EC values ​​for top dressing, resulting in increased soil salinity in the greenhouse. After the water evaporates, the salt remains. The surface layer of the soil gradually appears red after oxidation, and the pH of the salinized soil is generally high, which can be between 8-10. 3. Soil eutrophication Since the salt is enriched on the soil surface, it is suitable for some algae to survive. When the soil surface is dry, the algae die and the algae residue shows red color. The reason for this phenomenon is improper management in the field, causing salt segregation caused by soil impermeability and excessive evaporation to accumulate on the soil surface, resulting in excessive salt concentration and eutrophication on the soil surface, and some acidic soils and some alkaline soils. This phenomenon is found in the soil of the greenhouse. In order to alleviate and change the redness of the soil surface, in view of such a phenomenon, the following measures should generally be adopted: 1. Rational application of fertilizer Reduce the use of chemical fertilizers, and use high-quality bio-organic fertilizers or bacterial fertilizers; When selecting fertilizers, try to choose a fertilizer that is neutral or weakly acidic or weakly alkaline after dissolution, and a fertilizer with a smaller EC value (soil cation content). The smaller the value, the better; Reduce the use of compound fertilizer, use water soluble fertilizer to improve fertilizer utilization; The use of high-quality microbial agents for soil conditioning can both activate soil nutrients and prevent disease occurrence; 2. Choose the right irrigation method Change flood irrigation to drip irrigation, save water and reduce fertilizer damage. Through the above measures, we have achieved certain results in the improvement of these soils, and we have gained a lot of valuable experience to share with you: 1. The selected improver should not increase the soil nutrients (mainly nitrogen, phosphorus and potassium nutrients), and can adjust the soil acid-base balance. 2. More organic substances are used. Through the chelation of organic substances, the mobility of soil salt segregants is increased, and the concentration of salt segregants is reduced by soil, and the redness of soil surface is solved from the source. 3. In the greenhouse of farmers, it is recommended that farmers use drip irrigation. The use of flood irrigation must pay attention to the permeability of soil, reduce the evaporation of soil moisture, deepen the soil, and break the bottom of the plow. 4, greenhouse crops, base fertilizer must be combined with the use of organic fertilizer, preferably bio-organic fertilizer or fungus fertilizer. (Be sure to know what is the raw material for organic fertilizer, such as animal and plant cadaver organic fertilizer, manure organic fertilizer, and straw waste organic fertilizer. Other organic fertilizers have high organic matter, but only improve the organic matter at the time of measurement, such as The raw material is lignite organic fertilizer, and the raw material is organic fertilizer of furfural residue. This is a stable carbon, which has no effect on soil improvement. (Organic fertilizer agrochemicals) This article URL: What is the reason why the soil in the greenhouse turns green and red? Is the moss red moss related to soil properties? Lipstick,Red Lipstick,Loreal Lipstick,Lipstick Set Guangzhou Lingxue Cosmetics Co., Ltd , https://www.gzlxgj188.com