肥与沸石对节水稻作产量及氮素吸收利用的影响  

Effect of Fertilizer and Zeolite on Rice Yield and Nitrogen Utilization under Water Saving Irrisation

作　　者：迟道才[1] 孙一迪[1] 吴奇[1] 卜凡刚 许杏娟 陈涛涛[1] 张丽[3] 

机构地区：[1]沈阳农业大学水利学院,沈阳110161 [2]武义县农业综合开发办公室,浙江金华321200 [3]国网辽宁省电力有限公司鞍山供电公司,辽宁鞍山114014

出　　处：《沈阳农业大学学报》2015年第5期588-595,共8页Journal of Shenyang Agricultural University

基　　金：国家公益性行业(农业)科研专项项目(201303125);高等学校博士学科点专项科研基金联合资助项目(20112103110007);辽宁省优秀人才支持计划项目(2012);辽宁省特聘教授基金项目(2013)

摘　　要：为探讨沸石潜在的应用价值,在设有遮雨棚的测坑试验条件下采用裂区试验设计,研究了节水灌溉时不同沸石与氮肥水平对水稻理论产量、干物质积累量及氮肥利用率的影响。结果表明：水稻理论产量随氮肥量的增加而增加,但增加趋势变缓;中低水平沸石5～10t·hm^-2对水稻的增产效应显著,高水平沸石15t·hm^-2增产趋势变缓。随着氮肥的增加水稻各器官的干物质积累量和含氮量增加;适量沸石的投入也有利于提高水稻的干物质积累量和含氮量。沸石和肥都能显著提高氮肥利用率,不同氮肥水平对氮肥利用率的影响表现为：N3（105kg·hm^-2）〉N4（157.5kg·hm^-2）〉N2（52.5kg·hm^-2）〉N1（0kg·hm^-2）,沸石的影响为：Z2（5t·hm^-2）〉Z3（10t·hm^-2）〉Z4（15t·hm^-2）〉Z1（0t·hm^-2）。节水灌溉时适量的肥与沸石混施于土壤,不仅可以提高水稻的理论产量,也可减少氮肥流失。In order to learn the potential value of zeolite under water saving irrigation condition,the effect of different fertilizer and zeolite levels on rice theoretical yield, dry matter accumulation and nitrogen use efficiency were studied through the split plot experiment under the condition of pit field with water proof. The results showed that the rice theoretical yield increased along with the increase of nitrogen fertilization amount, but the increasing trend became slower. The zeolite of medium and low level 5-10t·hm^-2had significant impact on rice yield-increasing effect, but the increasing trend became slower with zeolite of high level 15t·hm^-2. The increasing of nitrogen fertilizer increased the dry matter accumulation of different organs and nitrogen amount, right amount of zeolite was also beneficial to increase dry matter accumulation and nitrogen amount. Zeolite and nitrogen could significantly increased the utilization rate of nitrogen fertilizer, the effect of different nitrogen in following order： N3（105kg·hm^-2）〉N4（157.5kg·hm^-2）〉N2（52.5kg·hm^-2）〉N1（0kg·hm^-2）, zeolite：Z2（5t·hm^-2）〉Z3（10t·hm^-2）〉Z4（15t·hm^-2）〉Z1（0t·hm^-2）.Therefore right amount of fertilizer and zeolite mixed in soil under the saving irrigation condition, not only improve the rice production, but also reduce the loss of nitrogen fertilizer, so as to reduce the environmental pollution.

关 键 词：水稻 沸石 理论产量 干物质积累量 氮肥利用率 

分 类 号：S161.4[农业科学—农业气象学]