When the winter arrived, when the author guided the production of vegetables in the countryside, he found that many farmers used excessive fertilizing materials and the amount was too large, causing soil compaction, rot, roots, and wilting of plants, which seriously affected the economy of greenhouse vegetables. benefit. According to many years of practical experience, it is suggested that the fertilization of vegetable vegetables should be done in the following four ways:
(a) The combination of organic fertilizer and inorganic fertilizer. That is, the combination of slow effect and quick effect. Many farmers use chemical fertilizers as the main fertilizer, which is easy to reduce the temperature. In addition, nitrogen fertilizers such as ammonium nitrate and urea are the main fertilizers. In the short term, the growth of vegetables is good, but the lack of long-term effects makes the plants susceptible to premature aging; Hempseed cakes, cotton cakes, bean cakes, and diammonium phosphate (or ammonium nitrate) are the main products, and the effect is not good because of the time required for cake fats to ferment.
(b) Combination of chase and fertilization. The fertilizer is mainly composed of multiple compound fertilizers. The combination of topdressing and rushing is adopted. On the one hand, the problem of surface root fertilizer needs to be solved. On the other hand, topdressing can activate the soil layer, increase the root elongation area, and supplement plant nutrition.
(3) Combination of large water and small water flushing. Many farmers regardless of the seedling stage and the result period are fertilized with large amounts of water, making the fertilizer and water too large, causing seedling disease, rot and roots. Regardless of bio-fertilizers, organic fertilizers, and chemical fertilizers, the seedling fertilizer should be used, scientific and rational dosage, and timely cultivating loose soil after fertilizer and water are applied.
(d) The combination of biological fertilizer and chemical fertilizer. Bio-fertilizer contains a variety of beneficial bacteria, with activated soil, increased ground temperature, and regulate the role of soil nutrition. In combination with inorganic fertilizer (fertilizer), it can relieve the damage of the soil, increase the organic matter of the soil, enhance the nutritive effect of nutrients, and promote the development of the root system.
Tumor markers are substances, often proteins, that are produced by the cancer tissue itself or sometimes by the body in response to cancer growth. Because some of these substances can be detected in body samples such as blood, urine, and tissue, these markers may be used, along with other tests and procedures, to help detect and diagnose some types of cancer, predict and monitor a person`s response to certain treatments, and detect recurrence.
More recently, the idea of what constitutes a tumor marker has broadened. Newer types of tests have been developed that look for changes in genetic material (DNA, RNA), rather than proteins, in patient samples. The genetic changes have been found to be associated with certain cancers and can be used as tumor markers to help determine prognosis, guide targeted treatment, and/or detect cancers early on. Moreover, advances in technology have led to tests that can evaluate several genetic markers or panels of markers at the same time, providing expanded information about characteristics of a tumor.
Tumor Markers Tests,Prostate Specific Antigen Test,Alpha Fetoprotein Test,Carcinoma Embryonic Antigen Test,Fecal Occult Blood Test
Changchun ZYF science and technology CO.,LTD , https://www.zyf-medical.com