Effects of different fertilization treatments on nitrogen and phosphorus in sugarcane field runoff

doi:10.16178/j.ssn.0528-9017.20240256

Abstract

Abstract:

In this study, four different fertilization treatments were conducted in 12 dry sugarcane plots with single row and single irrigation to detect the nitrogen and phosphorus content of runoff water generated by natural rainfall during the growth period of sugarcane under 4 fertilization schemes. The results showed that: Total nitrogen and total phosphorus in CK runoff were always at a low level; From the long-term trend, the content of TN in runoff showed as CT>BS>NSPC-BS; Total phosphorus content in runoff water showed as CT>NSPC-BS>BS. Total nitrogen loss load in runoff showed as NSPC-BS<; total phosphorus loss load in runoff BS<NSPC-BS<CT.

Key words: sugarcane, runoff, nitrogen, phosphorus, organic fertilizer

CLC Number:

S143
S566.1

JIN Chengzhou, JIN Zhiyong, HONG Qinghong. Effects of different fertilization treatments on nitrogen and phosphorus in sugarcane field runoff[J]. Journal of Zhejiang Agricultural Sciences, 2025, 66(7): 1607-1611.

Figures/Tables 7

References 11

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日期	雨量/ mm	TN含量/ (mg·kg^-1)	TP含量/ (mg·kg^-1)	径流量/ L
2022-11-27	103	0.43	0.016	1 398
2022-12-03	92	0.47	0.014	1 259
2023-02-15	76	1.37	0.014	1 171
2023-03-26	130	2.32	0.018	2 061
2023-04-07	35	2.32	0.018	361
2023-04-15	37	2.98	0.048	433
2023-04-26	49	1.30	0.019	479
2023-05-08	51	1.00	0.014	711
2023-05-19	50	1.71	0.056	457
2023-06-09	68	1.38	0.023	838
2023-06-24	124	1.05	0.023	2 696
2023-06-27	103	1.56	0.021	827
2023-09-16	130	0.88	0.031	3 182

日期	雨量/ mm	TN含量/ (mg·kg^-1)	TP含量/ (mg·kg^-1)	径流量/ L
2022-11-27	103	0.43	0.016	1 398
2022-12-03	92	0.47	0.014	1 259
2023-02-15	76	1.37	0.014	1 171
2023-03-26	130	2.32	0.018	2 061
2023-04-07	35	2.32	0.018	361
2023-04-15	37	2.98	0.048	433
2023-04-26	49	1.30	0.019	479
2023-05-08	51	1.00	0.014	711
2023-05-19	50	1.71	0.056	457
2023-06-09	68	1.38	0.023	838
2023-06-24	124	1.05	0.023	2 696
2023-06-27	103	1.56	0.021	827
2023-09-16	130	0.88	0.031	3 182

处理	各形态氮磷径流损失负荷/( kg·hm^-2)
处理	总氮	可溶性总氮	硝态氮	铵态氮	总磷	可溶性总磷
CK	24.27	21.27	14.81	2.21	0.667	0.353
CT	54.14±1.30	49.28±1.29	34.05±1.00	5.60±0.31	0.907±0.223	0.377±0.007
BS	48.38±4.56	43.78±5.05	29.89±4.77	5.02±0.21	0.813±0.160	0.349±0.025
NSPC-BS	44.92±2.51	40.35±2.11	27.88±2.15	4.80±0.19	0.892±0.066	0.368±0.020

处理	各形态氮磷径流损失负荷/( kg·hm^-2)
处理	总氮	可溶性总氮	硝态氮	铵态氮	总磷	可溶性总磷
CK	24.27	21.27	14.81	2.21	0.667	0.353
CT	54.14±1.30	49.28±1.29	34.05±1.00	5.60±0.31	0.907±0.223	0.377±0.007
BS	48.38±4.56	43.78±5.05	29.89±4.77	5.02±0.21	0.813±0.160	0.349±0.025
NSPC-BS	44.92±2.51	40.35±2.11	27.88±2.15	4.80±0.19	0.892±0.066	0.368±0.020

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