不同促芽肥施用时期对再生稻产量影响初报

Primary study on the effect for the yield of ratoon rice by application of budding fertilizer in different period

【目的】为探讨前季稻不同促芽肥施用时期对再生稻产量的影响。【方法】试验共设五个处理,三次重复,共15个小区,随机排列,小区面积33.4m2,分别于前季稻收割前25d、20d、15d、10d、5d进行施用促芽肥试验,【结果】不同促芽肥施用时期出苗率以处理4最高143.4%;处理3次之140.2%;其它处理为103.8%-137.8%。成穗率以处理1、处理2、处理3较高为94%-97%;处理4、处理5为84.4%-86.6%。再生稻生育进程：各处理始苗期相同;够苗期,处理1、处理2、处理3、处理4、基本相同,处理5较迟,比其它处理迟7-8d;有效发苗期,处理4最快,处理3次之,处理2、处理1第三,处理5最迟;始穗期、齐穗期、成熟期各处理基本相同。再生稻产量以处理4最高,341.5kg/667m2;处理3第二,323.5kg/667m2;处理2第三,309.5kg/667m2;处理1第四,303.5kg/667m2;处理5最低,295.6kg/667m2。【结论】不同促芽肥施用时期对再生稻各方面的影响情况,以处理4产量最好,处理3次之,处理1和处理2对促进再生稻生长及提高再生稻产量不是很理想;处理5不能充分发挥促芽肥的促芽作用,亦不利于提高再生稻产量。

【Objective】In order to research the effect for the yield of ratoon rice by application of budding fertilizer in different period.【Method】Conducted field contrast test,Set 15 blocks of five treatment with 3replications;【Results】The test results show that, compare with control, the treatment 4 with the advantage of seedling emergencerate and yield.【Conclusion】 For study on the effect for the yield of ratoon rice by application of budding fertilizer in different period, the yield of the treatment 4 is the highest, than the treatment 3; while treatment 1 and 2 are not very ideal;Treatment 5 cannot give full play to promote bud while applying budding fertilizer, which can not improve the yield of ratoon rice.