文档介绍：
饼肥与无机氮肥配施对水稻根系形态生理
和产量的影响#
张耗,徐正群,华小龙,王志琴,杨建昌**
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(扬州大学农学院,江苏扬州 225009)
摘要:以扬稻 6 号(籼稻)和扬辐粳 8 号(粳稻)为材料,设置 4 个处理:(T1)不施氮
肥;(T2)施用无机氮;(T3)施用饼肥;(T4)饼肥与无机氮肥配施。研究饼肥与无机
氮肥配施对水稻根系形态生理和产量形成的影响。结果表明:各处理的产量表现为饼肥与无
机氮肥配施(T4)>施用无机氮(T2)>施用饼肥(T3)>不施氮肥(T1),4 个处理间差异
显著。饼肥与无机氮肥配施(T4)显著增加了穗数、结实率、千粒重和收获指数。饼肥与
无机氮肥配施(T4)显著提高了抽穗期有效叶面积和高效叶面积、灌浆期叶片叶绿素含量
和光合速率以及各主要生育时期的根干重、根长、根系氧化力、根系伤流量、根系总吸收表
面积和活跃吸收表面积。表明饼肥与无机氮肥配施可以促进根部生长,进而促进地上部生长
并提高产量。
关键词:饼肥;氮肥;根系;产量
中图分类号:S511
Effect of Applying Rapeseed Cake bined with
anic Nitrogen Fertilizer on Morphology and
Physiology of Roots and Yield of Rice
Zhang Hao, Xu Zhengqun, Hua Xiaolong, Wang Zhiqin, Yang Jianchang
(College of Agriculture, Yangzhou University, JiangSu YangZhou 225009)
Abstract: Two local high-yielding cultivars, Yangdao 6 (indica) and Yangfujing 8 (japonica),
were grown in field. Four treatments, no N application (T1), application of anic N fertilizer
(T2), application of rapeseed cake fertilizer (T3) and application of rapeseed cake fertilizer
combined with anic nitrogen fertilizer (T4), were conducted. This study investigated the
effect of applying rapeseed cake bined with anic nitrogen fertilizer on
morphology and physiology of roots and yield of rice. Results showed that the order of grain yield
was T4 > T2 >T3 > T1, the differences among four treatments were significant. The T4 treatment
significantly increased panicles, percentage of filled grains, 1000-grain weight, and harvest index.
It also significantly increased effective leaf area index and high effective leaf area index at the
heading time, SPAD (soil-plant analysis department) values and photosynthetic rate during the
grain filling period. Root dry weight, root length, root oxidation activity, amount of root bleeding,
the total absorbing surface area and active absorbing surface area at different growth stages were
greater under the T4 treatment than those under any other treatments. The results suggest th