花生(花育16)地膜覆盖栽培氮磷钾的吸收特性  

Assimilation Characteristics of Nitrogen,Phosphorus and Potassium in Plastic Film-cultivated Peanut

作　　者：吴旭银[1] 吴贺平[2] 张淑霞[3] 王文颇[1] 周印富[1] 

机构地区：[1]河北科技师范学院农学系,河北秦皇岛066000 [2]河北科技师范学院外语系,河北秦皇岛066000 [3]河北科技师范学院分析测试中心,河北秦皇岛066000

出　　处：《河北科技师范学院学报》2007年第1期29-32,51,共5页Journal of Hebei Normal University of Science & Technology

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100kg荚果，植株需吸收N4．224kg,P2O5 1．269kg，K2O 3．610kg，比例为1．00：0．30：0．85。出苗后61～80d，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％。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.

关 键 词：花生 地膜覆盖栽培 氮 磷 钾 

分 类 号：S565.2[农业科学—作物学]