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一、土壤通气性对作物生长的影响保持良好的土壤通气性,是保证土壤空气质量,维持土壤肥力,促进作物正常生长发育的必要条件。在土壤空气流通、氧气充足的条件下,蔬菜根系发达,毛细根多,蔬菜根系吸收旺盛,对养分的吸收量增加,土壤中有机质分解转化也快;土壤透气性不佳,则根短而粗,毛细根减少,吸收养分和水分能力降低。土壤中的氧气含量保持在10%—15%时,才能保持根系正常生长,如果根系土壤中的氧气含量低于5%,新根基本不产生,生
First, the impact of soil aeration on crop growth Maintaining good soil aeration, is to ensure soil air quality, soil fertility and promote the normal growth and development of crops necessary conditions. Under the conditions of air circulation and sufficient oxygen, the roots of vegetables are well developed, the root of vegetables is rich, the roots of vegetables are well absorbed, the nutrient uptake is increased, and the decomposition of organic matter in the soil is also rapid. The soil is poor in air permeability, , Capillary root reduction, reduce nutrient absorption and water capacity. When the oxygen content in the soil is maintained at 10% -15%, the root system can maintain normal growth. If the content of oxygen in the root soil is less than 5%, the new root is basically not generated.