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为探讨在提高马铃薯产量的同时改良土壤的有效方法,2011~2012年在黑龙江省农业科学院克山分院马铃薯种薯网棚内设置2种EM菌肥料处理,研究了EM菌肥料的不同处理方法对连作的马铃薯原原种生产网棚土壤及马铃薯生长的影响。结果表明:2012年秋季测得土壤真菌和细菌的数量均为处理3(常规发酵的马粪肥-对照)>处理2(EM菌发酵的马粪与秸秆的混合物)>处理1(EM菌发酵的马粪肥),各处理的菌量均比2011年秋季减少;土壤放线菌的数量为处理3(对照)>处理2>处理1,各处理放线菌的数量均比2011年秋季增加,处理2增加最大。土壤容重的变化:2012年测得处理1和处理3的10,20和30cm处的土壤容重均减低,10cm土壤容重较未进行任何处理的空白对照降低6.1%。对马铃薯产量的影响:2012年各处理的小区产量和株高均比2011年增加,处理1和处理2的单株结薯个数也增加。
In order to explore the effective ways to improve the soil while increasing the potato yield, two kinds of EM fungi fertilizer treatments were set up in the potato seed net shed of Keshan Branch of Heilongjiang Academy of Agricultural Sciences from 2011 to 2012, and the different treatment methods of the EM fungi fertilizer were studied Effect of Continuous Cropping of Potato Protozoa on Net Shed Soil and Potato Growth. The results showed that the quantities of soil fungi and bacteria measured in autumn 2012 were both treatments 3 (conventional fermented horse manure-control)> treatment 2 (mixture of horse manure and straw fermented by EM bacteria)> treatment 1 Horse manure), the amount of bacteria in each treatment decreased compared with the autumn of 2011. The number of soil actinomycetes was 3 (control)> 2 (treatment 1), the number of actinomycetes in each treatment was increased compared with the autumn of 2011, the treatment 2 increase the maximum. Changes in soil bulk density: Soil bulk density decreased at 10, 20 and 30 cm in treatments 1 and 3 in 2012, and the bulk density at 10 cm decreased by 6.1% compared to the blank control without any treatment. Impact on Potato Production: In 2012, the yield and plant height of all plots increased compared to 2011, and the number of single plant tubers of treatments 1 and 2 also increased.