【摘要】 采用田间试验与室内化验分析相结合的方法,对花生(花育16)在地膜覆盖栽培、荚果产量6378.8kg.hm-2水平下植株氮磷钾吸收特性进行了研究。结果表明:平均每生产100 kg荚果,植株需吸收N 4.224kg,P2O51.269 kg,K2O 3.610 kg,比例为1.00∶0.30∶0.85。出苗后61~80 d,是植株吸收N,P2O5,K2O最多的时期,分别占各自总吸收量的41.14%,40.45%,50.03%。收获时,植株吸收N,P2O主要贮存在荚果中,分别占植株总吸收量的65.32%,62.54%;K2O主要贮存在茎枝中,占植株总吸收量的35.04%。更多还原

【Abstract】 Combining field experiment with inner chemical examination and analysis,the assimilation characteristics of peanut plants’ assimilating Nitrogen,Phosphorus and Potassium were studied under the condition of being plastic film-cultivated with the output of pods being at the level of 6 378.8kg·hm-2.The results showed that,to produce every 100 kg pods,4.224 kg N,1.269 kg P2O5 and 3.610 kg K2O were absorbed by the plant,with the proportion of 1.00∶0.30∶0.85.Most of the N,P2O5,K2O were assimilated by the plants 61～80 days after the emergence,which were of 41.14%,40.45%,and 50.03% of the total assimilation respectively.During harvest time,N and P2O5 absorbed were mainly stored in the pods,which were of 65.32%,62.54% of the total assimilation value of the plants;K2O was mainly stored in the stems and branches,which was of 35.04% of the total assimilation value.更多还原