摘要
3 a试验结果表明:氮肥有利于增加分蘖和粒数,对产量起决定性作用,但不利于提高稻米品质;磷肥能够促进氮肥的吸收,增施磷肥有提高成熟度和增加产量的作用,同时又提高出米率和降低蛋白质含量;钾肥和镁肥对于产量影响不明显,但对改善稻米品质作用最明显。氮、磷、钾配施产量最高,增产6.3%,米质趋中,如果再加施镁肥,既有利于提高产量又有利于提高稻米品质。
The experimental results in three years showed that nitrogen fertilizer was helpful to increase tillers and grains and had crucial effect on yield increase, but lowered rice quality; phosphorus fertilizer was able to accelerate nitrogen absorption and increase ripeness and yield, meanwhile raise milling rice rate and lower protein content; potassium fertilizer and magnesium fertilizer had no significant effect on grain yield increase, but had significant effect on quality improvement. The yield was the highest with an increasing by 6.3%, if nitrogen, phosphorus and potassium fertilizers were applied coordinately. If magnesium fertilizer was applied, the grain yield and quality would be enhanced simultaneously.
出处
《北方水稻》
CAS
2007年第4期31-33,共3页
North Rice
关键词
北方粳稻
不同营养元素
产量
米质
North japonica rice
Different nutrients
Yield
Quality
作者简介
严光彬（1949-），男，研究员。
