氮密调控对两个冬小麦品种碳氮代谢及产量的影响

王金凤,王壮壮,谷丰序,牟海萌,王宇,段剑钊,冯伟,王永华,郭天财

Effects of Nitrogen Fertilizer and Plant Density on Carbon Metabolism, Nitrogen Metabolism and Grain Yield of Two Winter Wheat Varieties

WANG JinFeng,WANG ZhuangZhuang,GU FengXu,MOU HaiMeng,WANG Yu,DUAN JianZhao,FENG Wei,WANG YongHua,GUO TianCai

表1 播前土壤基础养分

Table 1 Soil properties before sowing

年份 Year	品种 Variety	土层 Soil layers (cm)	有机质 Organic matter (g·kg^-1)	全氮 Total N (g·kg^-1)	碱解氮 Alkaline N (mg·kg^-1)	速效钾 Available K (mg·kg^-1)	有效磷 Available P (mg·kg^-1)	pH
2018-2019	鑫华麦818 Xinhua 818	0-20	17.82	1.27	102.97	263.67	4.17	8.19
	鑫华麦818 Xinhua 818	20-40	9.44	0.86	78.64	192.44	2.99	8.31
	百农207 Bainong 207	0-20	16.54	1.21	102.47	299.47	3.90	8.12
	百农207 Bainong 207	20-40	13.98	1.13	88.04	246.16	3.34	8.21
2019-2020	鑫华麦818 Xinhua 818	0-20	17.60	1.17	94.38	157.92	6.49	8.16
	鑫华麦818 Xinhua 818	20-40	7.97	0.75	74.39	112.95	3.50	8.24
	百农207 Bainong 207	0-20	17.78	1.16	96.52	211.90	6.13	8.07
	百农207 Bainong 207	20-40	8.54	0.89	76.96	156.68	3.77	8.16