摘要
为探索不同施肥方式对营山县小麦产量与养分利用的影响,促进科学施肥增效;设置不施肥(T1)、配方施肥无氮(T2)、配方施肥无磷(T3)、配方施肥无钾(T4)、配方施肥(T5)5个处理开展试验;结果表明,配方施肥提高了小麦籽粒产量,T5处理下小麦籽粒产量最高,显著高于T1和T2处理;配方施肥处理小麦籽粒和秸秆中氮、磷、钾含量均增加,养分吸收总量明显高于无肥处理和其他缺肥处理;配方施肥的化肥、氮肥、磷肥、钾肥农学利用率分别为23.78％、22.61％、11.10％、2.44％;综上,氮磷钾配方施肥显著提高了小麦籽粒产量、明显提升了小麦养分吸收,配方施肥在营山县小麦生产中较为适宜.
Abstract
To explore the effects of different fertilization methods on wheat yield and nutrient use in Yingshan County,Si-chuan,and to promote scientific fertilization;The experiment was conducted with five treatments:no fertilizer(T1),no nitrogen(T2),no phosphorus(T3),no potassium(T4)and no fertilizer(T5),the grain yield of T5 treatment was the highest,which was significantly higher than that of T1 and T2 treatment,the agronomic efficiency of chemical fertilizer,ni-trogen fertilizer,phosphorus fertilizer and potassium fertilizer were 23.78％,22.61％,11.10％and 2.44％,respective-ly,nitrogen,phosphorus and potassium fertilizers increased grain yield and nutrient uptake of wheat significantly,which was more suitable for wheat production in Yingshan County,Sichuan.
维普
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