滴施缩节胺与氮肥对棉花生长发育及产量的影响

张特, 王蜜蜂, 赵强

Effects of DPC and nitrogen fertilizer through drip irrigation on growth and yield in cotton

ZHANG Te, WANG Mi-Feng, ZHAO Qiang

表4 不同处理对棉花不同果枝第1、第2果节长的影响

Table 4 Effects of nitrogen and DPC treatments on the length of the first and second fruit node of the fruit branch in cotton (cm)

年份 Year	处理 Treatment			第1果枝 The first fruit branch					第4果枝 The fourth fruit branch		第7果枝 The seventh fruit branch
年份 Year	处理 Treatment			第1果节间长 Length of first fruit node		第2果节间长 Length of second fruit node			第1果节间长 Length of first fruit node	第2果节间长 Length of second fruit node	第1果节间长 Length of first fruit node	第2果节间长 Length of second fruit node
2018	D1	N1		9.50±2.39 a		2.00±0.54 a			13.00±2.32 a	7.50±2.35 b	5.00±1.02 ab	3.50±0.24 ab
		N2		10.50±3.66 a		5.91±1.46 a			14.75±2.90 a	5.62±1.88 ab	5.80±3.56 ab	4.40±2.38 bc
		N3		9.62±3.30 a		5.37±3.90 a			10.66±5.25 a	9.00±5.29 b	5.16±0.28 ab	2.83±0.57 ab
	D2	N1		8.83±1.15 a		2.66±0.28 a			9.16±3.17 a	7.33±3.75 ab	5.00±0.77 ab	3.50±0.81 ab
		N2		8.68±3.61 a		6.25±2.26 a			11.37±3.54 a	5.00±1.82 ab	3.83±1.44 a	3.16±2.02 ab
		N3		10.41±2.20 a		6.33±4.93 a			12.08±4.74 a	4.33±2.20 a	2.50±0.72 a	3.00±1.21 ab
	D3	N1		9.67±0.57 a		4.50±0.58 a			11.16±0.28 a	5.50±1.40 ab	4.33±2.30 ab	3.00±1.04 ab
		N2		8.50±2.19 a		6.35±3.71 a			12.70±4.38 a	3.60±1.19 a	4.50±1.57 ab	6.00±2.57 c
		N3		9.50±1.50 a		4.50±1.50 a			12.50±1.50 a	3.50±0.50 a	8.00±2.54 b	1.00±0.11 a
	D1			10.00±2.92 a		4.84±2.71 a			13.00±3.48 a	7.20±3.10 b	5.40±2.28 a	3.72±1.67 a
	D2			9.32±2.84 a		5.64±3.44 a			11.19±3.95 a	5.23±2.59 ab	3.77±1.30 a	3.22±1.03 a
2018	D3				9.00±1.77 a		5.53±2.86 a	12.22±2.93 a		4.09±1.20 a	5.61±2.13 a	3.33±2.17 a
	N1				9.33±0.75 a		3.11±1.24 a	11.11±2.30 a		6.77±2.10 a	4.77±1.20 a	3.33±0.25 ab
	N2				9.14±3.18 a		6.19±2.55 b	12.92±3.68 a		4.65±1.73 a	4.90±2.50 a	4.50±2.07 b
	N3				9.96±2.30 a		5.61±3.86 b	11.83±4.02 a		5.29±3.53 a	5.22±2.38 a	2.27±1.00 a
	D				0.385		2.454	0.419		1.812	2.308	0.152
	N				0.183		3.746^*	0.443		0.665	0.453	10.119^**
	D×N				1.123		0.581	0.150		1.451	2.762	7.561^**
2017	D1		N1		6.37±2.49 a		4.50±2.38 b	4.83±2.84 ab		3.16±0.28 ab	3.16±1.04 ab	3.13±0.80 a
			N2		6.25±2.22 a		2.75±0.82 ab	4.45±1.52 ab		2.38±0.78 a	3.00±0.50 a	2.25±0.35 a
			N3		6.00±1.22 a		3.50±1.32 ab	3.30±0.26 a		3.00±1.00 ab	4.83±0.28 bc	3.33±1.15 a
	D2		N1		8.75±1.76 a		3.75±0.35 ab	6.20±2.81 b		3.75±1.72 ab	4.50±0.70 bc	3.12±1.03 a
			N2		5.62±2.21 a		3.12±0.62 ab	5.41±1.80 ab		2.75±1.29 ab	3.66±1.04 ab	3.00±1.32 a
			N3		5.87±2.83 a		2.00±0.54 a	5.06±1.32 ab		2.92±0.83 ab	2.66±0.57 a	3.00±1.00 a
	D3		N1		6.58±2.10 a		3.41±1.80 ab	6.33±2.54 b		4.50±1.54 b	4.66±0.57 bc	3.83±1.25 a
			N2		5.20±1.82 a		2.70±0.75 ab	5.33±1.77 ab		3.75±2.04 ab	5.73±1.07 c	2.16±0.28 a
			N3		6.33±3.05 a		2.33±1.44 a	6.35±1.67 b		2.42±0.98 a	2.66±0.57 a	4.16±2.02 a
	D1				6.23±1.95 a		3.29±1.49 a	4.31±1.65 a		2.66±0.79 a	3.66±1.06 a	2.98±0.89 a
	D2				6.31±2.37 a		2.80±0.82 a	5.51±1.95 ab		3.13±1.31 a	3.70±1.05 a	3.05±0.98 a
	D3				6.03±2.14 a		2.92±1.39 a	6.02±1.96 b		3.50±1.71 a	4.35±1.58 a	3.38±1.51 a
	N1				6.80±2.10 a		3.83±1.81 b	5.98±2.57 a		3.93±1.48 b	4.15±0.97 a	3.34±0.98 a
	N2				5.79±2.03 a		2.81±0.74 a	4.93±1.65 a		2.88±1.43 a	4.13±1.46 a	2.50±0.84 a
	N3				6.05±2.19 a		2.55±1.14 a	5.27±1.70 a		2.73±0.90 a	3.38±1.26 a	3.50±1.36 a
	D				0.788		0.914	3.664^*		0.477	2.060	0.362
	N				0.836		3.297	0.436		0.383	2.116	1.854
	D×N				1.440		0.164	0.441		0.710	6.284^**	0.573