商品有机肥替代部分化肥对连作棉田土壤养分、棉花生长发育及产量的影响

卢合全, 唐薇, 罗振, 孔祥强, 李振怀, 徐士振, 辛承松

Effects of commercial organic fertilizer substituting chemical fertilizer partially on soil nutrients, plant development, and yield in cotton

LU He-Quan, TANG Wei, LUO Zhen, KONG Xiang-Qiang, LI Zhen-Huai, XU Shi-Zhen, XIN Cheng-Song

表2 2016-2018年商品有机肥替代部分化肥对0~20 cm土层土壤养分的影响

Table 2 Effects of commercial organic fertilizer replacing partial chemical fertilizer on 0-20 cm soil nutrient in cotton field from 2016 to 2018

年份 Year	处理 Treatment	有机质 Organic matter (g kg^-1)	碱解氮 Alkaline hydrolysis nitrogen (mg kg^-1)	有效磷 Available phosphorus (mg kg^-1)	速效钾 Available potassium (mg kg^-1)
2016	NF	11.14 b	36.00 b	24.71 b	103.00 b
	NPK	11.18 b	43.55 a	28.61 a	120.11 a
	COF	11.24 a	43.25 a	28.36 a	119.05 a
	NPK+COF	11.26 a	43.65 a	28.64 a	120.22 a
	0.70NPK+COF	11.23 a	43.45 a	28.55 a	120.00 a
2017	NF	11.05 c	25.71 c	22.03 c	85.20 c
	NPK	11.12 b	43.73 a	28.72 a	120.34 a
	COF	11.30 a	40.11 b	25.71 b	100.25 b
	NPK+COF	11.33 a	43.82 a	28.77 a	122.32 a
	0.70NPK+COF	11.26 ab	43.70 a	28.57 a	120.22 a
2018	NF	10.85 c	20.30 c	20.11 b	59.00 c
	NPK	11.02 ab	43.95 a	28.77 a	122.01 a
	COF	11.38 a	38.07 b	23.33 b	93.75 b
	NPK+COF	11.40 a	44.08 a	28.90 a	123.25 a
	0.70NPK+COF	11.30 a	43.88 a	28.57 a	120.22 a