Cotton Science

Effects of N-life on the physiological characteristics, nitrogen use efficiency, lint yield, and fiber quality of cotton

Ma Xinyu, Zhu Yueyi, Shi Yiqi, Zhu Shuijin, Zhao Tianlun

Cotton Science, 2023, 35(5): 398-411. DOI: 10.11963/cs20230029

年份 Year	处理 Treatment		编号 Number	减氮率 Nitrogen reduction rate/%	667 m²纯氮用量 Pure nitrogen application level per 667 m²/kg	667 m²尿素用量 Urea application level per 667 m²/kg	667 m² N-life用量 N-life application level per 667 m²/kg
2021	A1	B1	T0	0	19.0	23.5	1.5
		B2	T1	10	17.1	19.4	1.5
		B3	T2	20	15.2	15.2	1.5
	A2	B1	CK0	0	19.0	25.0	0
		B2	CK1	10	17.1	20.9	0
		B3	CK2	20	15.2	16.7	0
2022	A1	B1	T0	0	19.0	23.5	1.5
		B2	T1	10	17.1	19.4	1.5
		B3	T2	20	15.2	15.2	1.5
		B4	T3	30	13.3	11.1	1.5
	A2	B1	CK0	0	19.0	25.0	0
		B2	CK1	10	17.1	20.9	0
		B3	CK2	20	15.2	16.7	0
		B4	CK3	30	13.3	12.6	0

Table 2 Application levels of nitrogen and N-life in different treatments

Other figure/table from this article

Table 1 The original soil-fertility in the experimental field
Table 3 Treatments of the pot experiment in greenhouse
Fig. 1 Effects of N-life on SOD, POD, and CAT activity of cotton leaves at different developmental stages S1, S2, and S3 represent the seedling stage, flowering and boll stage, and boll opening stage, respectively. * represents significant difference (P < 0.05); ** represents extremely significant difference (P < 0.01).
Fig. 2 Effects of N-life on MDA content and NR activity of cotton leaves at different developmental stages S1, S2, and S3 represent the seedling stage, flowering and boll stage, and boll opening stage, respectively. * represents significant difference (P < 0.05); ** represents extremely significant difference (P < 0.01).
Table 4 Effects of N-life on photosynthetic indicators of cotton leaves at different growth stages
Table 5 Effects of N-life on the nitrogen use efficiency of cotton
Table 6 Effects of N-life on cotton agronomic traits
Table 7 Effects of N-life on cotton yield traits
Table 8 Effects of N-life on cotton fiber quality index