| 钾肥用量对寒地水稻产量和品质的影响 |
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| 引用本文： | 张国发,崔玉波,尤娟,张虹,徐长君.钾肥用量对寒地水稻产量和品质的影响[J].土壤通报,2010(2). |
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| 作者姓名： | 张国发 崔玉波 尤娟 张虹 徐长君 |
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| 作者单位： | 大庆师范学院生命科学系;南京农业大学农业部作物生长调控重点开放实验室;大庆师范学院教务处; |
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| 基金项目： | 大庆师范学院基金项目“钾素对稻米品质影响的生理机制研究”(YZQ001)资助 |
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| 摘 要： | 以粳稻品种空育131为试材,研究不同钾肥用量对其产量构成和品质性状的影响,为寒地水稻生产的合理施肥提供依据。结果表明,施用钾肥显著提高了有效穗数、穗粒数、稻谷产量和整精米率,降低了垩白粒率和胚乳直链淀粉含量,而对结实率、千粒重、糙米率、垩白面积和垩白度的影响较小;施钾使胚乳中总氮和蛋白氮含量增加,并提高蛋白氮比例,改善营养品质;施钾降低了糊化开始温度、冷胶黏度、回复值和消减值,提高了最高黏度、热浆黏度和崩解值,各特征值以回复值受影响最大。钾肥对水稻产量构成、品质指标及淀粉黏滞性谱特性的影响,在一定的范围内随施用量增加变化较明显,达到一定用量后继续增施钾肥效应减弱;试验条件下,以90.0kghm-2K2O的施用量较佳。
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| 关 键 词： | 施钾量 产量构成 品质性状 淀粉黏滞性谱 寒地水稻 |
Effects of K Fertilizer Application Amount on Yield and Qualities of Rice in Cold Region |
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| ZHANG Guo-fa,CUI Yu-bo,YOU Juan,ZHANG Hong,XU Chang-jun.Effects of K Fertilizer Application Amount on Yield and Qualities of Rice in Cold Region[J].Chinese Journal of Soil Science,2010(2). |
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| Authors: | ZHANG Guo-fa CUI Yu-bo YOU Juan ZHANG Hong XU Chang-jun |
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| Institution: | ZHANG Guo-fa1,3,CUI Yu-bo2,YOU Juan3,ZHANG Hong1,XU Chang-jun1(1.Department of Life Science Daqing Normal College,Daqing 163712,China,2.Office of Teaching Affairs,Daqing Normal College,3.Key Laboratory of Crop Growth Regulation,Ministry of Agriculture,Nanjing Agricultural University,Nanjing 210095,China) |
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| Abstract: | Kongyu131(Japonica) was used as material to analyze the effects of K fertilizer application amount on yield components and quality characters,and provide evidence for rational fertilization of high quality rice production in cool regions.The results showed that,the application of K fertilizer greatly increased effective panicles,grains per panicle,grain yield and head rice rate;decreased the chalky rice rate and amylose content in endosperm,but had a little influence on seed setting rate,1000-grains weight,... |
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| Keywords: | Amount of K fertilizer application Yield component Quality characters Starch viscosity profile Rice in cool region |
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