| 高志建， 尹飞虎， 张国桥，等.不同基追比施磷对滴灌稻田土壤无机磷组分及水稻产量的影响[J].广东农业科学,2015,42(6):45-50 |
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不同基追比施磷对滴灌稻田土壤无机磷组分及水稻产量的影响 |
| Effects of different ratios of base P to dressingP on inorganic phosphorus fractions inpaddy soil and rice yield |
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| DOI： |
| 中文关键词: 基追比 水稻 无机磷 转化 产量构成 |
| 英文关键词: ratio of base P to dressing P rice inorganic phosphorus transformation yield components |
| 基金项目: |
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| 摘要点击次数: 1641 |
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| 中文摘要: |
| 为寻求滴灌水稻最适磷肥基追比方案，设计不同基追比处理（CK：无磷肥，T1：全基，T2：30%基+
70%滴，T3：70%基+30%滴，T4：全滴），采用土壤分层取样、生育时期干物质测定和收获后考种的方法，研究不
同基追比对滴灌稻田土壤无机磷组分及水稻产量构成的影响。 结果表明： 在收获期， 较其他处理，T1 处理的
Resin-P、NaHCO3-P 含量最高，HCl-P 含量最低；T2 处理的残渣-P 含量最高，NaOH-P 含量最低；T3、T4 处理的
无机磷各组分含量互有高低。 30%基施、70%追施的施磷模式在同等条件下可以获得最大生物量及产量，分别
比对照增产 11.67%、9.92%，类似趋势还表现在有效穗数、穗粒数、实粒数、结实率及千粒重上。 |
| 英文摘要: |
| To seek for the optimal ratio of base P to dressing P for drip irrigation rice, different ratios of base P
to dressing P were designed, including CK: no phosphatic fertilizer, T1: 100%, T2: 30% base P + 70% dressing P,
T3: 70% base P+30% dressing P, T4: 100% dressing P, the impacts of different ratios of base P to dressing P on soil
inorganic phosphorus components and rice yield components were studied by adopting soil stratification sampling, dry
matter determination at growth stage and test species after harvest. The results showed that the contents of Resin-P,
NaHCO3-P of T1 treatment were the highest, HCl-P of which was the lowest compared with other treatments in the
harvest period. Residue-P content of T2 treatment was the highest, NaOH -P content of which was the lowest.
Inorganic phosphorus content of each component of T3 and T4 treatment had no regular pattern. The mode of 30%
basal application and 70% topdressing of phosphorus could obtain the highest biomass and yield, increasing by
11.67% and 9.92% respectively, compared to CK. There was a similar trend reflecting in the effective panicles, grain
number, real grain number, seed rate and grain weight on. |
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