侧深施肥用量对中籼杂交水稻生长和产量的影响  

Effects of Different Side-depth Fertilization Rates on the Growth and Yield of Medium Indica Hybrid Rice

作　　者：胡根生 HU Gen-sheng(Jinshen Town Agricultural Technology Extension Station of Tongcheng City,Tongcheng,Anhui 231400)

机构地区：[1]桐城市金神镇农业技术推广站,安徽桐城231400

出　　处：《安徽农业科学》2021年第7期167-169,共3页Journal of Anhui Agricultural Sciences

摘　　要：[目的]研究侧深施肥不同用量对中籼杂交稻两优688生长和产量的影响,以便合理使用化肥,寻求更科学的施肥方法。[方法]试验设5个处理(处理①为基肥用缓释肥375.0 kg/hm^(2)机插秧同步侧深施肥,在倒二叶时追施187.5 kg/hm^(2)复合肥作穗肥;处理②为基肥用缓释肥450.0 kg/hm^(2)机插秧同步侧深施肥,在倒二叶时追施187.5 kg/hm^(2)复合肥作穗肥;处理③为基肥用缓释肥525.0 kg/hm^(2)机插秧同步侧深施肥,在倒二叶时追施187.5 kg/hm^(2)复合肥作穗肥;CK1为基肥用复合肥450.0 kg/hm^(2)机插秧同步侧深施肥,在倒二叶时追施187.5 kg/hm^(2)复合肥作穗肥;CK2为基肥用复合肥450.0 kg/hm^(2)旋耕前人工撒施,机插后8和15 d分别追施尿素75.0、150.0 kg/hm^(2),倒二叶时追施复合肥187.5 kg/hm^(2)做穗肥),对比分析各处理条件下水稻生育进程、分蘖动态和产量的差异。[结果]各处理生育期由长到短排序为处理③、处理②、处理①、CK1、CK2,其中处理③生育期最长,CK1、CK2均最短;各处理最终有效穗数的差异较小,但成穗率差异较明显,处理①成穗率最高;CK2倒三叶长度最长,处理①长度较为适中;实际产量由大到小排序为处理①、处理③、处理②、CK1、CK2。[结论]常量侧深施肥可以为水稻定量、均匀施肥提供保证,可提高水稻对肥料的利用率,促进形成大穗和高产,同时可降低肥料的损失和对环境的污染,值得在大规模水稻生产中应用和推广。[Objective]To study the effects of different levels of lateral fertilization on the growth and yield of medium Indica hybrid rice Liangyou 688,in order to rationally use chemical fertilizers and seek a more scientific method of fertilization.[Method]A total of 5 treatments were carried out.The differences in rice growth process,tiller dynamics and yield under different treatments were compared.[Results]The growth periods of different treatments from long to short were in the order of treatment③,treatment②,treatment①,CK1,CK2.Among them,treatment③had the longest growth period,CK1 and CK2 were the shortest.The difference of the final effective ear number of each treatment was relatively small,but the difference in ear formation rate was more obvious.Treatment①had the highest ear formation rate.The length of CK2 inverted clover was the longest,and the treatment①was relatively moderate in length.The actual output was from large to small was in the order of treatment①,treatment③,treatment②,CK1,CK2.[Conclusions]Constant lateral deep fertilization could provide guarantee for quantitative and uniform fertilization of rice,improve the utilization rate of fertilizer in rice,promote the formation of large panicles and high yield,and reduce fertilizer loss and environmental pollution.It was worthy of application in large-scale rice production and promotion.

关 键 词：侧深施肥 中籼杂交稻 施用量 生长发育 产量 影响 

分 类 号：S511.21[农业科学—作物学]