不同用量沼液对茭白生长、产量及土壤理化性质的影响

Effects of Different Amount of Biogas Slurry on Growth,Yield of Water Bamboo and Soil Physicochemical Properties

为了探索沼液对茭白产量的影响以及合理用量,比较了不同用量沼液和常规化肥处理下的茭白生长、产量及效益,同时分析了茭白种植前后土壤理化性质的差异。结果表明:无论是秋季还是春季,施用沼液的茭白667 m^(2)产量均显著高于施用化肥的处理,茭白生长优于化肥处理,但施用沼液对土壤理化性质影响不大;在秋季生产中,667 m^(2)施用沼液肥14 t的茭白产量最高,其667 m^(2)产量比施用化肥提高36.6%;在春季生产中,667 m^(2)施用沼液肥10 t的茭白产量最高,其667 m^(2)产量比施用化肥提高58.7%。试验证明沼液有利于茭白的高产种植。

In order to explore the effects of biogas slurry on the yield of water bamboo and the reasonable dosage of biogas slurry,the effects of different dosage of biogas slurry and conventional chemical fertilizer on the growth,yield and benefit of water bamboo were compared,and the differences of soil physical and chemical properties before and after planting were analyzed.The results showed that both in autumn and spring,the yield per 667 m^(2)of water bamboo applied biogas slurry was significantly higher than that applied with chemical fertilizer,and the growth of water bamboo was better than that applied with chemical fertilizer,but the application of biogas slurry had little effect on soil physical and chemical properties.In autumn production,the yield of water bamboo was the highest when biogas slurry fertilizer was applied for 14 t per 667 m^(2),and the yield per 667 m^(2)was 36.6%higher than that of treatment applied with chemical fertilizer.In the spring production,the yield of water bamboo with biogas slurry fertilizer for 10 t per 667 m^(2)was the highest,and the yield per 667 m^(2)of water bamboo was 58.7%higher than that applied with chemical fertilizer.The experiment proved that biogas slurry was beneficial to high yield cultivation of water bamboo.