Comparative test of fertilizer efficiency of different slow-release fertilizers in rice with equal nitrogen applications

doi:10.16178/j.issn.0528-9017.20230864

Abstract

Abstract:

In this experiment, a comparative test of fertilizer efficiency of different slow-release fertilizers in rice under the condition of equal nitrogen was designed. The results showed that the application of slow-release fertilizer can replace the traditional application of chemical fertilizer by farmers on the premise of reducing the primary tillering fertilizer, so as to save labor and cost, increase yield and efficiency. However, due to the differences in nutrient distribution and slow-release processes between different brands of slow-release fertilizers, the field application effects are different. In this experiment, the yield increase effect of Haolegeng and Duoyicheng slow-release fertilizer were relatively better than that of the other two slow-release fertilizer brands.

Key words: rice, slow-release fertilizer, use effect

CLC Number:

S511.5

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DI Aifang, LI Jianqiang. Comparative test of fertilizer efficiency of different slow-release fertilizers in rice with equal nitrogen applications[J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(4): 830-833.

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URL: http://www.zjnykx.cn/EN/10.16178/j.issn.0528-9017.20230864

http://www.zjnykx.cn/EN/Y2024/V65/I4/830

Figures/Tables 3

Table 1 Fertilization rates and nutrient inputs of different treatments

处理	667 m²养分投入理论值/kg			667 m²基肥		667 m²分蘖肥		667 m²穗肥
处理	N	P₂O₅	K₂O	肥料	用量/kg	肥料	用量/kg	肥料	用量/kg
1	0	0	0	—	0	—	0	—	0
2	13.65	6.75	6.75	劲久	30.0	尿素	15	劲久	15
3	13.65	5.25	7.88	稻坚强	34.8	—	0	尿素	10
4	13.65	5.46	8.19	利祥	45.3	—	0	尿素	10
5	13.65	3.79	7.58	好乐耕	50.3	—	0	尿素	10
6	13.65	5.78	7.88	多益成	34.8	—	0	尿素	10

Table 1 Fertilization rates and nutrient inputs of different treatments

处理	667 m²养分投入理论值/kg			667 m²基肥		667 m²分蘖肥		667 m²穗肥
处理	N	P₂O₅	K₂O	肥料	用量/kg	肥料	用量/kg	肥料	用量/kg
1	0	0	0	—	0	—	0	—	0
2	13.65	6.75	6.75	劲久	30.0	尿素	15	劲久	15
3	13.65	5.25	7.88	稻坚强	34.8	—	0	尿素	10
4	13.65	5.46	8.19	利祥	45.3	—	0	尿素	10
5	13.65	3.79	7.58	好乐耕	50.3	—	0	尿素	10
6	13.65	5.78	7.88	多益成	34.8	—	0	尿素	10

Table 2 Plant traits of different treatments

处理	株高/cm	每丛有效穗数	每穗总粒数	每穗实粒数	结实率/%	千粒重/g
1	87.8 b	15.4 b	108.0 c	98.7 c	91.4 b	24.7 a
2	95.0 a	17.9 a	124.0 b	116.9 b	94.3 a	25.1 a
3	93.3 a	18.2 a	126.7 ab	119.1 b	94.0 a	25.5 a
4	93.9 a	17.8 a	127.9 ab	118.3 b	92.5 b	25.6 a
5	91.9 a	17.7 a	135.9 a	129.0 a	94.9 a	25.5 a
6	92.5 a	18.1 a	131.5 ab	125.3 ab	95.3 a	25.2 a

Table 2 Plant traits of different treatments

处理	株高/cm	每丛有效穗数	每穗总粒数	每穗实粒数	结实率/%	千粒重/g
1	87.8 b	15.4 b	108.0 c	98.7 c	91.4 b	24.7 a
2	95.0 a	17.9 a	124.0 b	116.9 b	94.3 a	25.1 a
3	93.3 a	18.2 a	126.7 ab	119.1 b	94.0 a	25.5 a
4	93.9 a	17.8 a	127.9 ab	118.3 b	92.5 b	25.6 a
5	91.9 a	17.7 a	135.9 a	129.0 a	94.9 a	25.5 a
6	92.5 a	18.1 a	131.5 ab	125.3 ab	95.3 a	25.2 a

Table 3 Physicochemical properties of soil after the test

处理	全氮含量/ (g·kg^-1)	有效磷含量/ (mg·kg^-1)	速效钾含量/ (mg·kg^-1)	有机质含量/ (g·kg^-1)	pH值
1	2.46	17.9	68	26.6	6.73
2	2.68	19.2	70	23.5	6.33
3	2.47	23.6	75	26.1	6.79
4	2.87	19.9	74	26.8	6.49
5	2.64	17.0	81	25.3	6.75
6	2.51	21.3	78	26.4	6.77

Table 3 Physicochemical properties of soil after the test

处理	全氮含量/ (g·kg^-1)	有效磷含量/ (mg·kg^-1)	速效钾含量/ (mg·kg^-1)	有机质含量/ (g·kg^-1)	pH值
1	2.46	17.9	68	26.6	6.73
2	2.68	19.2	70	23.5	6.33
3	2.47	23.6	75	26.1	6.79
4	2.87	19.9	74	26.8	6.49
5	2.64	17.0	81	25.3	6.75
6	2.51	21.3	78	26.4	6.77

References 5

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