冬小麦生物有机肥对化肥氮磷钾单一元素缺失缓冲效应分析

Analysis of Buffering Effect of Bio-Organic Fertilizer on Single Element Deficiency of Nitrogen, Phosphorus, and Potassium in Chemical Fertilizers for Winter Wheat

为了探讨有机肥在不同土壤环境下对小麦产量的影响,试验采用2环境4处理3重复2年度的试验方法,以小麦品种济麦22为试验品种,对有机肥对土壤氮磷钾单一元素缺失缓冲效应进行了分析。研究结果表明:在土壤未施用有机肥的环境条件下,单一元素缺失对小麦产量影响的大小依次为:缺磷 > 缺氮 > 缺钾;而在土壤施用有机肥的环境条件下,其大小依次为:缺氮 > 缺磷 > 缺钾。在施用有机肥的环境下氮磷钾全肥处理、缺氮处理、缺磷处理及缺钾处理比不施用有机肥环境下各自对应处理2年度平均增产分别为12.39%、10.07%、21.10%及15.06%。有机肥与化肥不能相互代替,且有机肥的使用不能完全取代任何一种大量元素。In order to investigate the effects of organic fertilizer on wheat yield in different soil environments, the experiment adopted the test method of 2 environment 4 treatment and 3 repetition for 2 years, and the wheat variety Ji Mai 22 was used as the test variety to analyze the buffered effect of organic fertilizer on soil N (nitrogen), P (phosphorus), K (potassium) single element loss. The results showed that the effects of single element deficiency on wheat yield were as follows: phosphorus deficiency > nitrogen deficiency > potassium deficiency;Under the environmental conditions of soil application of organic fertilizer, the order is nitrogen deficiency > phosphorus deficiency > potassium deficiency. In the application of bio-organic fertilizer environment the average yield of NPK treatment, N deficiency treatment, P deficiency treatment and K deficiency treatment was 12.39%, 10.07%, 21.10% and 15.06%, respectively, compared with the corresponding treatment without bio-organic fertilizer. Organic fertilizer and chemical fertilizer cannot replace each other, and the use of organic fertilizer cannot completely replace any large number of elements.