小麦专用腐植酸控释肥一次施肥效应研究

以河南省粮食主产区冬小麦为试验作物，开展小麦专用腐植酸控释肥一次施肥效应研究。结果表明:与对照CK1(普通小麦肥底+追）、对照CK2(普通小麦肥一次性底施)相比，在减氮或减肥16%的情况下，穗粒数平均增加0.4-2.6粒，千粒重平均增加0.8-2.5g，小麦增产6.1%-14.9%、增收1396.5-3018元/hm2；不同区域、不同土壤类型、不同品种有差异，但表现趋势高度一致。说明专用腐植酸控释掺混肥养分释放与小麦生长需求吻合度更高，有利于通过简化施肥获得稳产、高产。

Study on single fertilization effect of special Humic acid controlled-release fertilizer for wheat

The primary fertilization effect of controlled release humic acid fertilizer for wheat was studied with winter wheat in main grain producing area of Henan province as experimental crop. The results show that: Compared with CK1(common wheat fertilizer base + topdressing) and CK2(common wheat fertilizer sole application), under the condition of reducing nitrogen or reducing weight by 16%, grain number per spike increased by 0.4-2.6 grains, 1000-grain weight increased by 0.8-2.5g on average, wheat yield increased by 6.1%-14.9% and income increased by 1396.5-3018 yuan /hm2. There were differences among different regions, different soil types and different varieties, but the trend was highly consistent. The results indicated that the nutrient release of special humic acid controlled release blended fertilizer was more consistent with the growth demand of wheat, which was beneficial to obtain stable yield and high yield through simplified fertilization.