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灌溉与施磷对小麦-玉米-马铃薯间套群体作物生理特征的影响
引用本文:张礼军,张恩和,黄高宝,郭丽琢.灌溉与施磷对小麦-玉米-马铃薯间套群体作物生理特征的影响[J].甘肃农业大学学报,2005,40(1):53-58.
作者姓名:张礼军  张恩和  黄高宝  郭丽琢
作者单位:1. 甘肃农业大学农学院,甘肃,兰州,730070;兰州商学院小麦育种研究所,甘肃,兰州,730020
2. 甘肃农业大学农学院,甘肃,兰州,730070
摘    要:在景泰大田中进行了三个灌水水平,三个施磷量的试验。为了探讨水磷对复合群体作物生理特征的调控及其产量效应,结果表明:灌溉和供磷对间套群体中作物的生理特征具有明显的调控效应。在充分的磷肥供应和适当的水分灌溉条件下,作物叶绿素含量高,叶片水分状态良好,根系生长旺盛,根冠比例协调,能够获得较高的经济产量。同时,在所有的处理中,中灌(1 050m3 /hm2)和高磷(纯 P2O5150 kg/hm2)处理的经济产量最高。单作小麦、间作小麦、间作玉米、间作马铃薯在该处理条件下的产量依次是 7 253.8kg/hm2、3 320.5kg/hm2、6 269.3 kg/hm2、13 801.9 kg/hm2。

关 键 词:灌溉  施磷  间套群体  生理特征  产量
文章编号:1003-4315(2005)01-0053-06

Effects of irrigation and phosphorus on yields and crop physiological characters yield in wheat-corn-potato system
ZHANG Li-jun,ZHANG En-he,HUANG Gao-bao,GUO Li-zhuo.Effects of irrigation and phosphorus on yields and crop physiological characters yield in wheat-corn-potato system[J].Journal of Gansu Agricultural University,2005,40(1):53-58.
Authors:ZHANG Li-jun  ZHANG En-he  HUANG Gao-bao  GUO Li-zhuo
Abstract:The experiment was conducted in Jingtai County to investigate the effects of irrigation and phosphorus on crop yields and physiological characters in wheat-maize-potato intercropping system. The results indicated that the effects of irrigation and phosphorus were evident in all quality characters and yields. Under the condition of appropriate irrigation and adequate phosphorus application, crops in wheat-maize-potato system had the tendency to keep leaf chlorophyll content and root dry weight high, to maintain leaf water status well and to adjust the root/shoot ratio to the optimal value, which contributed to high economic yield. It was showed that crops in intercropping system and had the highest yield under the treatment of middle irrigation (1050m3 /hm2) and high phosphorus (150 kg P2O5/hm2). The economic yields of mono-wheat, inter-wheat, inter-corn and inter-potato yield were respectively 7 253.8kg/hm2, 3 320.5kg/hm2, 6 269.3kg/hm2and 13 801.9 kg/hm2under this condition.
Keywords:irrigation  phosphorus application  intercropping system  physiological character  yield
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