Meteorological disaster defense is a major challenge in agricultural production.Low temperature and weak light are the main factors of disastrous weather conditions.The commonly used measures for disaster prevention are artificial lighting and temperature increase,but these are difficult to apply in field conditions.Research on fertilization for resistance to low tem-perature and weak light stress has mostly focused on the physiological effects of fertilizers,with less research on the use of mi-crobial fertilizers to prevent meteorological disasters.This paper investigates the efficacy of microbial fertilizers in resisting light and temperature stress.The results show that the harm caused by light and temperature stress is primarily due to the in-hibition of photosynthesis,leading to a reduction in carbon framework(photosynthetic products)and the obstruction of nitro-gen organic transformation,resulting in toxic levels of inorganic nitrogen in cells.This study achieved increased yields by using microbial fertilizers to raise the level of carbon framework or reduce the amount of nitrogen fertilizers.Compared to the control(CK)using chemical fertilizers,microbial carbon supplementation increased yields by 33.8％-39.2％,while reducing nitro-gen treatment resulted in a yield increase of 4.8％.Both methods can adjust the carbon-nitrogen balance to obtain increased yields.The principle of stress resistance in microbial fertilizers is to reduce carbon deficiencies through the secretion of organic carbon,which reduces carbon deficit,improves the carbon-nitrogcn balance and achieves an active high level of carbon-nitrogcn balance.
关键词
微生物/氮肥减量/施肥抗逆/弱光低温
Key words
microorganisms/nitrogen fertilizer reduction/fertilization for stress resistance/low light and low temperature
维普
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