论文部分内容阅读
在杭州湾慈溪滩涂盐渍土试验区块中,研究施加固体有机肥、绿化栽培介质、有机液肥和无有机肥等对盐渍土和绿化植物的影响。利用统一栽植20种植物模式的每个试验块(15m×20m),进行4个试验组,试验周期为18个月的研究。结果表明:施加有机肥能够降低和稳定表层土壤的pH值和含盐量,但未达到显著差异;3种有机肥均显著增加了土壤有机质含量,有机液肥的长期效果比绿化栽培介质和固体有机肥料差;施加有机肥料对20种植物的存活率、高度生长速率和径向生长速率等指标,改善效果,因植物种类存在较大差异;综合慈溪滩涂表层土壤理化性质和植物的变化情况,4个试验组改良效果大小为:绿化栽培介质≈固体有机肥料>有机液肥>无有机肥。
In Cixi beach saline soil test block in Hangzhou Bay, the effects of application of solid organic fertilizer, green culture medium, organic liquid fertilizer and no organic fertilizer on saline soil and green plants were studied. Four test groups were used for each test block (15 m × 20 m) in which 20 plant models were uniformly planted, and the test period was 18 months. The results showed that the application of organic manure could reduce and stabilize the surface soil pH value and salinity, but did not reach significant difference. The three kinds of organic manure significantly increased the content of soil organic matter. The long-term effect of organic manure was better than that of green medium and solid organic Fertilizer is poor; The application of organic fertilizer to 20 kinds of plant survival rate, height growth rate and radial growth rate and other indicators, to improve the effect, due to the large differences in plant species; comprehensive Cixi beach surface soil physical and chemical properties and plant changes, 4 The experimental group to improve the effect size: green cultivation medium ≈ solid organic fertilizer> organic liquid fertilizer> no organic fertilizer.