CAJ | 학술논문

通过连续8年在黑龙江省6个生态区9个固定轮作场圃综合试验,试验区专项研究,框区、盆栽试验,实验室分析,以及大量的大面积生产调查,发现大豆重迎茬种植根系分泌物增加,且对大豆生长发育及土壤微生物区系有不利的影响,同时也影响到土壤微量元素的活化;根茬腐解物对大豆的生长和根系活力都有不利的影响,并使大豆的产量明显降低。研究结果表明,根系分泌物和根茬腐解物对重迎茬大豆的生长发育和产量有一定的影响,它们也是造成大豆重迎茬减产的一个原因。
통과련속8년재흑룡강성6개생태구9개고정륜작장포종합시험,시험구전항연구,광구、분재시험,실험실분석,이급대량적대면적생산조사,발현대두중영치충식근계분비물증가,차대대두생장발육급토양미생물구계유불리적영향,동시야영향도토양미량원소적활화;근치부해물대대두적생장화근계활력도유불리적영향,병사대두적산량명현강저。연구결과표명,근계분비물화근치부해물대중영치대두적생장발육화산량유일정적영향,타문야시조성대두중영치감산적일개원인。
The experiments had been carried out for 8 years in 9 fixed rotation fields and 6 ecological regions of Heilongjiang Province by comprehensive tests, special research, pot experi- ment, laboratory analysis, and series of field experiments. The re- sult showed that：（1） When the soybean was planted continuous- ly, root secretion was more than that in normal rotation, which would be disadvantageous to growth and development of soybean and the system of microorganism in soil. Also, it would effect the activation of microelements in soil. （2） decaying substance of stubble effected on growth of soybean and activation of soybean roots disadvantageously, and reduced yeild of soybean significantly. All of this told us that the root secretion and decaying substance of stubble effect on growth and development of soybean and yield determinately, and they are one of the important reasons to reduce yield of soybeans planted continuously and al- ternately.