Effects of different zinc application methods on rice growth

doi:10.16178/j.issn.0528-9017.20221196

Abstract

Abstract:

In order to study the effects of different zinc application methods on rice growth, experiments were carried out in three paddy field experimental sites in Zhejiang Province. The effects of different fertilization rates, different rice varieties and different fertilizers on the zinc application in rice were studied, and the effects of different treatments on rice growth, grain yield and nutrient content were compared with the treatment without zinc fertilizer. The results showed that the appropriate application of zinc fertilizer could promote the growth of rice, increase the yield and nutrient content of rice, but excessive zinc application would lead to the decrease of fertilizer efficiency. The effect of zinc application to increase yield was also affected by rice varieties and fertilization methods, inorganic zinc fertilizer was suitable for basal fertilizer, organic zinc fertilizer was suitable for foliar fertilizer application, and the combination of basal application and foliar spraying had the best effect on yield increase.

Key words: zinc fertilizer, rice, yield

CLC Number:

S511.5

Yupei CHEN, Jianqiang LI, Haimin XU, Zhonglin WANG, Yingjie SHAN, Jie WANG, Weifeng ZHU, Ruohui LU. Effects of different zinc application methods on rice growth[J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(2): 268-271.

Figures/Tables 3

References 20

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处理	产量/ (kg·hm^-2)	籽粒元素含量
处理	产量/ (kg·hm^-2)	氮/ (g·kg^-1)	磷/ (g·kg^-1)	钾/ (g·kg^-1)	锌/ (mg·kg^-1)
CK1	6 375	13.65	2.25	2.16	24.42
T1	6 720	14.70	2.36	2.42	34.00
T2	6 555	14.10	2.28	2.27	32.10
T3	6 825	15.81	2.49	2.85	28.70

处理	产量/ (kg·hm^-2)	籽粒元素含量
处理	产量/ (kg·hm^-2)	氮/ (g·kg^-1)	磷/ (g·kg^-1)	钾/ (g·kg^-1)	锌/ (mg·kg^-1)
CK1	6 375	13.65	2.25	2.16	24.42
T1	6 720	14.70	2.36	2.42	34.00
T2	6 555	14.10	2.28	2.27	32.10
T3	6 825	15.81	2.49	2.85	28.70

品种	处理	株高/ cm	2个1 m长的样段穗数	千粒重/ (g·kg^-1)
浙大锌稻	CK2	82.5 Ca	98 Db	18.52 Cc
	A1	85.6 Da	102 Db	19.46 Db
	A2	86.5 Ca	130 Ca	21.88 BCa
中浙优8号	CK2	116.5 Ba	123 Cc	21.00 Bb
	A1	123.0 BCa	192 Aa	22.12 Ba
	A2	117.2 Ba	171 Ab	22.71 Ba
甬优15	CK2	133.0 Ac	138 Bb	22.31 Ac
	A1	155.2 Aa	154 Ba	25.58 Aa
	A2	143.1 Ab	150 Ba	23.84 Ab
甬优1540	CK2	117.0 Ba	160 Aa	17.92 Cb
	A1	118.0 Ca	144 Cb	18.34 Eb
	A2	120.2 Ba	131 Cc	19.85 Da
嘉丰优2号	CK2	119.0 Bb	145 Bab	20.73 Ba
	A1	127.0 Ba	139 Cb	21.14 Ca
	A2	124.0 Bab	152 Ba	21.23 Ca

品种	处理	株高/ cm	2个1 m长的样段穗数	千粒重/ (g·kg^-1)
浙大锌稻	CK2	82.5 Ca	98 Db	18.52 Cc
	A1	85.6 Da	102 Db	19.46 Db
	A2	86.5 Ca	130 Ca	21.88 BCa
中浙优8号	CK2	116.5 Ba	123 Cc	21.00 Bb
	A1	123.0 BCa	192 Aa	22.12 Ba
	A2	117.2 Ba	171 Ab	22.71 Ba
甬优15	CK2	133.0 Ac	138 Bb	22.31 Ac
	A1	155.2 Aa	154 Ba	25.58 Aa
	A2	143.1 Ab	150 Ba	23.84 Ab
甬优1540	CK2	117.0 Ba	160 Aa	17.92 Cb
	A1	118.0 Ca	144 Cb	18.34 Eb
	A2	120.2 Ba	131 Cc	19.85 Da
嘉丰优2号	CK2	119.0 Bb	145 Bab	20.73 Ba
	A1	127.0 Ba	139 Cb	21.14 Ca
	A2	124.0 Bab	152 Ba	21.23 Ca

处理	产量/ (kg·hm^-2)	秸秆干重/ (kg·hm^-2)	株高/ cm	穗长/ cm	2株有效穗数	每穗实粒数	结实率/ %	千粒重/ g
CK3	8 811	9 404	94.9	16.2	17.7	113.4	94.1	24.8
B1	9 287	9 816	96.2	16.0	19.1	114.9	94.6	25.7
B2	8 931	9 593	94.6	17.4	18.3	120.4	95.8	25.9
B3	9 365	9 966	96.5	17.1	19.3	122.5	96.1	24.9
C1	9 194	9 791	96.0	16.4	18.4	117.3	94.7	25.2
C2	9 677	9 956	96.0	17.6	18.0	133.7	96.5	25.0
C3	9 759	9 899	95.5	17.4	18.6	129.2	96.2	25.4