施肥对植物群落及土壤理化性质的影响

Effects of Fertilization on Plant Community and Soil Physical and Chemical Properties

科学研究开展了不同的施肥,以研究其对退化草地植物物种产量和理化性质的损害。结果表明:改良化学物质与有机肥配合施用可以解决干草增产的问题,干草产量达到4505 kg/hm^(2),是无肥产量的4.9倍;解决高产的实际效果是改良化学物质和有机肥>巴黎有机肥和灰泥>有机肥和活性炭>有机肥>不施肥;施肥后,植被覆盖率增加,土壤容重降低,水分含量增加,且充分营养该物质逐渐得到改善。使用有机肥料和土壤改良化学品(如石青石或活性炭)可以显著提高牧草产量,改善土壤层特性,并对退化的草地植被恢复有极大的实际影响。

Scientific research has carried out different fertilization to solve the damage to the yield and physicochemical properties of plant species in degraded grassland.The results showed that the combined application of improve chemical substances and organic fertilizer could solve the problem of increasing the yield of dry grasses.The yield of dry grasses reached 4505 kg/hm^(2),which was 4.9 times of that without fertilizer.The practical effect of solving high yield is improve chemical substances and organic fertilizer>Paris organic fertilizer and plaster>organic fertilizer and activated carbon>organic fertilizer>no fertilizer;After fertilization,the vegetation coverage rate increased,soil bulk density decreased,water content increased,and the nutrient was gradually improved.The results showed that the use of organic fertilizer and soil improvement chemicals(such as lapis lazuli or activated carbon)could significantly increase forage yield,improve soil layer characteristics,and have a significant practical impact on vegetation restoration of degraded grassland.