Effects of different nitrogen fertilization methods on growth and non-structure carbohydrate accumulation of Quercus nuttallii seedlings

doi:10.12302/j.issn.1000-2006.202005040

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2021, Vol. 45 ›› Issue (4): 107-113.doi: 10.12302/j.issn.1000-2006.202005040

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Effects of different nitrogen fertilization methods on growth and non-structure carbohydrate accumulation of Quercus nuttallii seedlings

NI Ming¹(), GAO Zhenzhou¹, WU Wen², ZHANG Yuhui², YU Fangyuan¹^,^*()

1. Co-Innovation Center for the Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing 210037, China
2. Shanghai Forestry Station, Shanghai 200040, China

Received:2020-05-22 Accepted:2021-05-31 Online:2021-07-30 Published:2021-07-30
Contact: YU Fangyuan E-mail:2455870069@qq.com;fyyu@njfu.com.cn

Abstract

Abstract:

【Objective】The effects of different fertilization methods and different nitrogen application rates on the growth and non-structure carbohydrate accumulation of Quercus nuttallii container seedlings were investigated in this study. This was done to reveal the fertilizer demand of Q. nuttallii seedlings so that optimal fertilization methods and nitrogen application rates could be determined.【Method】Two fertilization methods of average fertilization and exponential fertilization levels were set with one-year-old Q. nuttallii container seedlings as the experimental objects. Fertilization treatments along four concentration gradients were set for each method. The fertilization interval was 7 days and 15 rounds of fertilizer applications were applied. The seedling height and ground diameter were measured after fertilization. Seedling samples were harvested and dried to measure biomass, soluble sugar and starch contents at the end of the experiment.【Result】Both ave-rage fertilization and exponential fertilization significantly promoted the growth of one-year-old Q. nuttallii container seedlings, and the effect of exponential fertilization was better than that of average fertilization. With the increase in nitrogen application, seedling height, ground diameter, aboveground biomass, underground biomass and total biomass all reached the maximum values of 97.90 cm, 10.33 mm, 12.21 g, 26.74 g, and 38.95 g, respectively, under the treatment of Z900; which was 1.53, 1.15, 1.75, 2.47 and 2.19 times the values of CK, respectively. The application of nitrogen fertilizer assigned more biomass to the stems and leaves. Further, the soluble sugar content of each organ increased significantly in each fertilization group and the effect of exponential fertilization was better, whereas the starch content decreased significantly in the roots.【Conclusion】The exponential fertilization was found to be better than the traditional fertilization. The growth and development of one-year-old Quercus nuttallii container seedlings treated with Z900 were the most impressive, suggesting that this treatment is an ideal fertilization treatment for Quercus nuttallii container seedlings.

Key words: Quercus nuttallii, exponential fertilization, average fertilization, growth character, non-structure carbohydrate, container seedling

CLC Number:

S723

NI Ming, GAO Zhenzhou, WU Wen, ZHANG Yuhui, YU Fangyuan. Effects of different nitrogen fertilization methods on growth and non-structure carbohydrate accumulation of Quercus nuttallii seedlings[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2021, 45(4): 107-113.

Figures/Tables 5

Table 1

Fig.1

Table 2

Fig.2

Table 3

References 36

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处理 treat- ment	施肥量/(mg·株^-1) fertilization amount															总量 total
处理 treat- ment	1周	2周	3周	4周	5周	6周	7周	8周	9周	10周	11周	12周	13周	14周	15周	总量 total
CK	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
C300	20.00	20.00	20.00	20.00	20.00	20.00	20.00	20.00	20.00	20.00	20.00	20.00	20.00	20.00	20.00	300
C500	33.33	33.33	33.33	33.33	33.33	33.33	33.33	33.33	33.33	33.33	33.33	33.33	33.33	33.33	33.33	500
C700	46.67	46.67	46.67	46.67	46.67	46.67	46.67	46.67	46.67	46.67	46.67	46.67	46.67	46.67	46.67	700
C900	60.00	60.00	60.00	60.00	60.00	60.00	60.00	60.00	60.00	60.00	60.00	60.00	60.00	60.00	60.00	900
Z300	11.16	12.04	13.17	14.01	15.11	16.12	17.58	18.97	20.46	22.06	23.81	25.68	27.70	29.88	32.23	300
Z500	15.02	16.61	18.36	20.32	22.46	24.84	27.47	30.38	33.60	37.16	41.09	45.44	50.25	55.58	61.46	500
Z700	17.88	20.13	22.68	25.53	28.75	32.37	36.45	41.05	46.23	52.05	58.61	66.01	74.32	83.70	94.24	700
Z900	20.17	23.03	26.31	30.04	34.32	39.20	44.78	51.14	58.41	66.71	76.20	87.04	99.41	113.55	129.68	900

处理 treatment	生物量/g biomass
处理 treatment	地下部分 underground part	地上部分 aboveground part	总生物量 total biomass
CK	6.978±0.148 f	10.818±0.324 f	17.795±0.471 g
C300	7.867±0.151 e	18.336±0.353 d	26.203±0.462 e
C500	10.011±0.166 d	20.383±0.422 c	30.394±0.288 d
C700	10.584±0.231 c	21.975±0.310 b	32.559±0.191 bc
C900	10.175±0.152 cd	21.390±0.374 bc	31.573±0.434 c
Z300	7.362±0.126 ef	17.208±0.194 e	24.570±0.305 f
Z500	11.190±0.178 b	21.301±0.142 bc	32.491±0.098 bc
Z700	11.897±0.199 a	21.715±0.042 b	33.613±0.229 b
Z900	12.208±0.216 a	26.743±0.516 a	38.951±0.553 a

处理 treatment	可溶性糖含量 soluble sugar content			淀粉含量 starch content
处理 treatment	根root	茎stem	叶leaf	根root	茎stem	叶leaf
CK	61.653±1.042 cd	49.822±0.274 c	22.525±2.084 c	185.607±0.744 ab	112.427±4.337 c	54.762±0.398 cd
C300	56.098±3.780 d	68.212±2.534 a	23.691±2.708 c	155.921±6.988 cd	103.572±7.228 cd	59.915±7.605 b
C500	64.372±2.750 bc	57.987±2.390 bc	21.288±0.098 cd	170.129±12.173 bc	115.639±16.688 bc	67.844±0.178 a
C700	65.869±1.211 bc	67.924±0.783 a	28.898±1.394 b	188.455±1.278 ab	103.391±1.257 cd	65.123±5.039 a
C900	75.712±6.767 ab	68.212±0.661 a	23.648±0.179 c	142.838±9.659 de	99.199±5.667 e	66.338±8.653 a
Z300	84.953±4.616 a	67.496±7.029 a	40.915±2.231 a	124.185±9.072 e	104.098±0.911 cd	55.651±2.650 c
Z500	82.254±2.119 ab	70.025±0.025 a	44.674±1.964 a	200.921±14.614 a	97.802±6.662 e	51.477±1.288 d
Z700	70.186±5.044 b	68.360±0.634 a	16.966±1.072 d	177.568±5.489 b	116.528±2.681 bc	67.572±4.819 a
Z900	67.123±4.054 bc	66.157±3.781 ab	33.402±1.187 b	170.564±6.872 bc	127.977±0.450 a	58.209±2.409 bc

Effects of different nitrogen fertilization methods on growth and non-structure carbohydrate accumulation of Quercus nuttallii seedlings

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[3]	WEI Yajuan, GUO Jing, DANG Xiaohong, Xie Yunhu, WANG Ji, LI Xiaole, WU Huimin. Morphological characteristics and influencing mechanisms of Nitraria tangutorum nebkhas at different sandy land types in desert oasis ecotone of Jilantai [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2023, 47(5): 172-180.
[4]	SUN Wei, WANG Bin, CHU Xiuli, WANG Xiuhua, ZHANG Dongbei, WU Xiaolin, ZHOU Zhichun. Response and association of the growth and nutrient traits of Pinus massoniana container seedlings to phosphorus addition and inoculation of mycorrhizal fungi [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2023, 47(1): 226-233.
[5]	JI Yanhong, TANG Wenhua, DOU Quanqin, XIE Yinfeng. Effects of fertilizer application on seedling growth and nutrient accumulation in Carya illinoinensis container seedlings [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2021, 45(6): 47-56.
[6]	YANG Yang, SHI Haoran, JI Li, YANG Lixue. Effects of exponential fertilization on growth and root morphology of Tilia amurensis seedlings [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2020, 44(2): 91-97.
[7]	LI Fengqing, WANG Xiuhua, CHU Xiuli, ZHANG Dongbei, WU Xiaolin, ZHOU Shengcai, YE Ming. Effects of N/P ratio and loading on growth and construction of nutrients reserves of one-year-old seedlings for five kinds of precious tree species [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2020, 44(1): 72-80.
[8]	PAN Pingping, DOU Quanqin, TANG Wenhua, XIE Yinfeng. Effects of slow release fertilizer dosage on growth and nutrient contents of Carya illinoensis container seedlings [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2019, 43(5): 163-168.
[9]	ZHANG Yufeng, DAI Li, XIE Yinfeng, MA Yingli, TANG Wenhua, YUAN Tingting. Study on growth characteristics of young bamboo and shooting of Chimonobambusa utilis at different altitudes [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2019, 43(5): 199-203.
[10]	ZHAO Huifang, Lü Lianfei, YAO Bei, WU Wenlong, LI Weilin. The growth and fruiting characteristics of ‘Zhaixuan’ blueberry strains in Nanjing [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2019, 62(03): 163-168.
[11]	YAO Guanggang,LI Guolei,ZHENG Yonglin,XUE Dunmeng,LI Shian,YUAN Qihua. Effects of slow-release fertilizer rate on the quality of Quercus aliena container seedlings [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2019, 62(01): 69-75.
[12]	WU Qikui, WU Yali, YU Fangyuan. Variation of seedling growth in different families of Styrax tonkinensis [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2018, 61(02): 191-196.
[13]	SUN Qiaoyu, LIU Yong, CHEN Chuang, SHI Wenhui, WANG Weiwei, CHEN Xiao. Effects of container seedling quality on outplanting performance of Quercus variabilis [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2018, 61(01): 188-192.
[14]	TANG Guilan, LIU Xiaoxing, LU Jianguo. Effects of nitrogen exponential fertilization on growth and nutrient distribution of Sinocalycanthus chinensis seedlings [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2017, 60(06): 134-140.
[15]	WAN Fangfang, LIU Yong, LI Guolei, SUN Qiaoyu, JIANG Le, SHI Wenhui, TENG Fei, ZHANG Jin. Effect of sub-irrigation with slow-release fertilizer on growth and accumulation of nitrogen of Larix principis-rupprechtii Mayr container seedlings [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2017, 60(01): 75-81.