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Acta Agronomica Sinica ›› 2019, Vol. 45 ›› Issue (11): 1691-1698.doi: 10.3724/SP.J.1006.2019.94029

• TILLAGE & CULTIVATION·PHYSIOLOGY & BIOCHEMISTRY • Previous Articles     Next Articles

Effects of plant density and N fertilizer spraying concentration on growth of rapeseed blanket seedlings

ZHANG Han-Xiao1,LIN Shen2,ZUO Qing-Song1,YANG Guang1,FENG Qian-Nan1,FENG Yun-Yan1,LENG Suo-Hu1,*()   

  1. 1 Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Yangzhou University, Yangzhou 225009, Jiangsu, China
    2 Jiangsu Tianfeng Seed Co. Ltd, Huai’an 223001, Jiangsu, China;
  • Received:2019-02-26 Accepted:2019-06-22 Online:2019-11-12 Published:2019-06-22
  • Contact: Suo-Hu LENG E-mail:oilseed@yzu.edu.cn
  • Supported by:
    This study was supported by the National Key Research and Development Program of China(2018YFD0200905)

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Abstract:

In order to explore the effects of sowing density and N fertilizer on the key biological indicators of rapeseed blanket seedlings, the cultivation methods of rapeseed blanket seedlings suitable for mechanical transplantation were studied. In this paper, Ningza 1818, a Brassica napus variety, was used to analyze the effect of sowing density and N fertilizer spraying concentration on some important morphological and physiological indicators, including number of survival plants, number of green leaves, dry matter accumulation, ratio of shoot to root and so on. With the increase of sowing density, the number of survival plants, the number of leaves and green leaves decreased. High sowing density reduced dry matter accumulation of shoots and roots, and that of roots had a greater decline, resulting in a decreased ratio of shoot to root. At the same time, the root collar length and plant height increased, and seedling fullness decreased. With the increase of N fertilizer spraying concentration, the above indicators were optimized. Under the low sowing density condition, the quality of blanket seedlings was improved, however, it was not conducive to forming the good blanket of seedlings and transplanting, and the transplanting density could not be guaranteed. Therefore, considering the quality of blanket seedlings and the effect of mechanized transplanting, the combination of the nutrient solution of 3 g urea L -1 and sowing density of 800 seed plate -1 is reasonable to cultivate rapeseed blanket seedlings when the seedling age of late rice stubble is about 30-40 days.

Key words: rapeseed blanket seedling, sowing density, N fertilizer spraying concentration, seedling quality, number of green leaves

Table 1

Effect of planting density and N rate on survival and death blanket rapeseed seedings during process of growth"

密度
Density (Seed plate-1)		 施肥浓度
Nitrogen (g L-1)		 存苗数 Number of survival plants 死苗数Number of death plants
20 d 30 d 40 d 20 d 30 d 40 d
400 1 378.12 j 375.48 k 367.48 i 14.72 gh 17.36 j 25.36 l
2 380.20 j 378.24 k 372.24 i 13.19 h 15.15 j 21.15 l
3 384.20 j 382.56 k 377.52 i 10.43 h 12.07 j 17.11 l
600 1 563.14 i 550.50 j 535.50 h 25.44 f 38.08 gh 53.08 i
2 567.18 hi 556.45 ij 545.48 h 22.44 fg 33.17 hi 44.14 ij
3 574.70 h 567.78 i 558.84 h 17.17 g 24.09 ij 33.03 jk
800 1 731.52 g 710.12 h 657.52 g 48.42 c 69.82 d 122.42 f
2 740.24 fg 723.28 h 683.28 fg 41.94 d 58.90 f 98.90 g
3 754.00 f 742.44 g 712.48 ef 32.32 e 43.88 g 73.84 h
1000 1 908.50 e 827.90 f 717.60 e 57.50 b 138.10 b 248.40 b
2 921.00 de 854.10 e 773.60 d 49.21 c 116.11 c 196.61 c
3 940.30 d 892.20 d 831.67 c 36.82 d 84.92 d 145.45 e
1200 1 1059.96 c 956.36 c 820.36 c 68.64 a 172.24 a 308.24 a
2 1080.00 b 996.92 b 903.36 b 58.44 b 141.52 b 235.08 b
3 1109.64 a 1053.52 a 985.04 a 43.08 d 99.20 e 167.68 d

Table 2

Effect of planting density and N rate on number of leaves and green leaves during the blanket rapeseed growth process"

密度
Density
(Seed plate-1)		 施肥浓度
Nitrogen
(g L-1)		 出叶数 The number of leaves 绿叶数 The number of green leaves
20 d 30 d 40 d 20 d 30 d 40 d
400 1 2.36 d 3.59 e 4.38 d 2.36 d 3.26 d 3.28 d
2 2.60 bc 4.26 b 4.96 b 2.60 bc 3.83 b 4.05 b
3 2.93 a 4.86 a 5.68 a 2.93 a 4.18 a 4.51 a
600 1 2.28 d 3.46 e 4.20 d 2.28 d 3.19 de 3.20 de
2 2.50 bc 4.17 bc 4.78 b 2.50 bc 3.77 b 3.85 b
3 2.87 a 4.60 a 5.55 a 2.87 a 4.05 a 4.22 a
800 1 2.20 de 3.40 e 3.96 g 2.20 de 3.12 e 2.88 f
2 2.41 d 3.93 c 4.56 c 2.41 d 3.32 d 3.36 d
3 2.67 b 4.30 b 5.12 b 2.67 b 3.87 b 3.93 b
1000 1 2.15 ef 3.23 f 3.73 e 2.15 ef 2.88 f 2.62 g
2 2.33 d 3.76 d 4.31 d 2.33 d 3.22 de 3.03 e
3 2.54 bc 4.13 c 4.45 c 2.54 bc 3.51 c 3.53 c
1200 1 2.03 f 3.12 f 3.56 e 2.03 f 2.83 f 2.46 g
2 2.23 d 3.62 d 4.22 d 2.26 d 3.15 e 2.93 e
3 2.46 c 3.86 c 4.33 d 2.46 c 3.22 de 3.15 de

Table 3

Effect of planting density and N rate on agronomic traits of the blanket rapeseed seedings during process of growth"

密度
Density
(Seed plate-1)		 施肥浓度Nitrogen
(g L-1)		 根颈长
Root collar length (cm)		 苗高
Plant height (cm)		 叶长
Leaf length (cm)
20 d 30 d 40 d 20 d 30 d 40 d 20 d 30 d 40 d
400 1 1.33 h 1.34 f 1.35 h 4.74 i 7.75 g 8.85 h 1.39 fg 2.14 fg 2.79 efg
2 1.37 g 1.38 e 1.38 g 5.23 g 8.04 f 9.06 g 1.74 bc 2.52 c 3.08 bc
3 1.40 ef 1.41 e 1.42 f 5.47 f 8.52 d 9.52 e 2.03 a 2.86 a 3.37 a
600 1 1.35 h 1.36 f 1.36 g 5.15 h 7.78 g 8.96 h 1.38 fg 2.11 fg 2.73 efg
2 1.40 efg 1.42 e 1.42 f 5.73 g 8.12 ef 9.33 f 1.70 bcd 2.43 cd 3.00 cd
3 1.45 ef 1.48 d 1.47 e 6.05 ef 8.66 d 9.70 e 1.96 a 2.73 a 3.25 ab
800 1 1.38 g 1.41 e 1.41 f 5.25 h 7.97 ef 9.89 de 1.28 gh 2.08 g 2.64 gh
2 1.45 ef 1.51 d 1.51 d 5.88 g 8.41 d 10.42 d 1.57 de 2.37 d 2.87 de
3 1.52 c 1.63 c 1.67 c 6.36 e 8.87 c 10.73 c 1.77 b 2.65 b 3.04 cd
1000 1 1.40 efg 1.50 d 1.53 d 5.76 f 8.25 e 10.13 c 1.21 gh 1.96 h 2.48 hi
2 1.53 c 1.62 c 1.67 c 6.58 cd 8.80 c 10.75 c 1.44 ef 2.19 ef 2.67 fgh
3 1.60 b 1.71 b 1.72 bc 6.99 ab 9.64 b 11.46 ab 1.61 bcd 2.41 d 2.82 ef
1200 1 1.45 d 1.58 c 1.58 d 5.85 f 8.36 e 10.35 c 1.19 h 1.90 h 2.36 i
2 1.58 bc 1.73 ab 1.73 ab 6.73 bc 8.98 c 11.04 bc 1.38 f 2.11 fg 2.51 hi
3 1.67 a 1.81 a 1.81 a 7.18 a 9.93 a 11.9 4a 1.53 d 2.30 e 2.63 fgh

Table 4

Effect of planting density and N rate on overground and underground part dry weight of the blanket rapeseed seedings during process of growth"

密度
Density
(Seed plate-1)		 施肥浓度
Nitrogen
(g L-1)		 地上干物重
Dry weight of shoots (mg plant-1)		 地下干物重
Dry weight of roots (mg plant-1)
20 d 30 d 40 d 20 d 30 d 40 d
400 1 26.3 f 58.1 f 77.6 f 1.6 c 5.1 e 8.6 ef
2 32.1 bc 64.6 c 87.2 c 2.2 b 6.5 b 9.7 cd
3 35.5 a 70.7 a 93.6 a 2.5 a 7.6 a 12.6 a
平均 Mean 31.3 64.5 86.1 2.1 6.4 10.3
600 1 25.9 f 57.9 ef 77.4 f 1.5 cd 4.9 ef 8.0 fg
2 31.3 c 63.3 c 85.9 d 2.0 b 6.1 c 9.5 d
3 34.8 a 69.7 ab 92.6 ab 2.3 a 7.1 ab 11.7 ab
平均 Mean 30.7 63.6 85.3 1.9 6.0 9.7
800 1 25.6 f 57.5 ef 77.1 g 1.4 d 4.6 g 7.9 g
2 30.8 c 62.7 c 85.1 e 1.8 c 5.7 d 9.3 d
3 33.5 b 68.1 b 92.8 ab 2.1 b 6.2 c 11.5 b
平均 Mean 30.0 62.8 85.0 1.8 5.5 9.6
1000 1 23.4 i 54.9 g 75.5 e 1.1 g 4.1 h 7.6 gh
2 27.3 g 59.9 e 80.0 d 1.3 e 4.8 f 8.4 e
3 30.1 d 66.1 c 87.8 c 1.6 c 5.6 d 9.6 cd
平均 Mean 26.9 60.3 81.1 1.3 4.8 8.5
1200 1 22.4 j 53.6 h 74.6 e 1.1 g 3.5 i 7.1 h
2 25.8 h 58.6 f 79.0 d 1.2 f 4.1 h 7.7 gh
3 28.1 e 61.9 d 86.1 d 1.5 cd 4.8 f 8.7 e
平均 Mean 25.4 58.0 79.9 1.3 4.1 7.8

Table 5

Effect of planting density and N rate on ratio of shoot to root and seedling fullness of blanket rapeseed seedings during process of growth"

密度
Density (Seed plate-1)		 施肥浓度
Nitrogen (g L-1)		 根冠比Ratio of shoot to root 充实度Seedling fullness (mg cm-1)
20 d 30 d 40 d 20 d 30 d 40 d
400 1 0.061 d 0.088 e 0.111 c 0.555 c 0.750 d 0.877 d
2 0.069 ab 0.101 ab 0.111 c 0.613 ab 0.803 ab 0.962 ab
3 0.070 a 0.107 a 0.135 a 0.649 a 0.830 a 0.983 a
600 1 0.058 e 0.085 ef 0.103 d 0.503 f 0.744 de 0.864 d
2 0.063 c 0.096 c 0.111 c 0.546 d 0.779 bc 0.921 c
3 0.066 b 0.102 b 0.126 b 0.575 b 0.805 ab 0.955 b
800 1 0.055 f 0.080 f 0.102 d 0.488 fg 0.722 e 0.780 f
2 0.058 e 0.087 e 0.109 c 0.524 e 0.745 d 0.817 ef
3 0.063 c 0.091 d 0.124 b 0.527 e 0.768 c 0.865 d
1000 1 0.047 i 0.075 hi 0.101 f 0.406 j 0.666 h 0.745 h
2 0.048 hi 0.080 f 0.105 e 0.415 i 0.681 g 0.744 h
3 0.053 g 0.085 ef 0.109 c 0.431 h 0.686 f 0.766 g
1200 1 0.049 hi 0.065 j 0.095 f 0.383 k 0.641 i 0.721 i
2 0.047 i 0.070 i 0.097 e 0.383 k 0.653 ij 0.716 ij
3 0.053 g 0.078 gh 0.101 d 0.391 j 0.623 j 0.721 i
[1] 刘恒新 . 油菜生产机械化发展步伐加快. 农机科技推广, 2010, ( 1):14-15.
Liu H X . Speeding up the development of rape production mechanization. Agric Mach Technol Extern, 2010, ( 1):14-15 (in Chinese with English abstract).
[2] 张尧锋 . 油菜全程机械化生产配套技术研究与示范. 浙江大学硕士学位论文, 浙江杭州, 2012.
Zhang Y F . Development and Demonstration of Integrated Technologies for Mechanized Production in Oilseed Rape. MS Thesis of Zhejiang University, Hangzhou, Zhejiang, China, 2012 (in Chinese with English abstract).
[3] 于晓旭, 赵匀, 陈宝成, 周脉乐, 张昊, 张智超 . 移栽机械发展现状与展望. 农业机械学报, 2014,45(8):44-53.
Yu X X, Zhao Y, Chen B C, Zhou M L, Zhang H, Zhang Z C . Current situation and prospect of transplanter. Trans CSAM, 2014,45(8):44-53(in Chinese with English abstract).
[4] 吴玉珍, 张建明, 谢巧泉, 吴正贵 . 苏州市油菜毯状苗机械化生产技术初探. 安徽农业科学, 2015,43(30):74-77.
Wu Y Z, Zhang J M, Xie Q Q, Wu Z G . Preliminary study on mechanized production technology of rape blanket seeding in Suzhou. J Anhui Sci, 2015,43(30):74-77 (in Chinese with English abstract).
[5] 南京农业机械化研究所. 油菜毯状苗机械移栽技术取得重大突破. 农业装备与车辆工程, 2014, ( 12):32.
Nanjing Agricultural Machinery Research Institute. Great breakthrough has been made in mechanical transplanting technology of rape blanket seedlings. Agric Equip Vehic Eng, 2014, ( 12):32 (in Chinese with English abstract).
[6] 赵敏, 卢青, 张耘祎 . 油菜毯状苗机械化移栽技术及应用. 江苏农机化, 2016, ( 4):18-20.
Zhao M, Lu Q, Zhang Y W . Mechanized transplanting technology and application of rape blanket seedlings. Jiangsu Agric Mechan, 2016, ( 4):18-20 (in Chinese with English abstract).
[7] 黄大山 . 播期、播量和移栽密度对宁粳1号机插稻产量形成及氮素吸收的影响. 扬州大学硕士学位论文, 江苏扬州, 2008.
Huang D S . Effects of Sowing Date, Sowing Rate and Transplanting Density on the Yield Formation and Nitrogen Absorption of Mechanical Transplanting Rice Ninggeng 1. MS Thesis of Yangzhou University, Yangzhou, Jiangsu, China, 2008 (in Chinese with English abstract).
[8] 殷发国, 董根生, 李清, 成海燕, 王益民 . 水稻软(硬)质塑盘机插育秧试验研究. 现代农业科技, 2005, ( 3):39-40.
Yin F G, Dong G S, Li Q, Cheng H Y, Wang Y M . Experimental study on rice transplanting with soft (hard) plastic disc machine. Mod Agric Sci Technol, 2005, ( 3):39-40 (in Chinese).
[9] Colnenne C, Meynard J M, Roche R . Effects of nitrogen deficiencies on autumnal growth of oilseed rape. Eur J Agron, 2002,17:11-28.
[10] 李晓蕾, 钱永德, 黄成亮, 王龙, 赵祥, 蔡永盛 . 苗期氮素用量对水稻秧苗素质的影响. 江苏农业科学, 2014,42(3):47-49.
Li X L, Qian Y D, Huang C L, Wang L, Zhao X, Cai Y S . Effects of nitrogen application on seedling quality of rice seedlings. Jiangsu Agric Sci, 2014,42(3):47-49 (in Chinese).
[11] Rathke G W, Behrens T, Diepenbrock W . Integrated nitrogen management strategies to improve seed yield, oil content and nitrogen efficiency of winter oilseed rape (Brassica napus L.): a review. Agric Ecosyst Environ, 2006,117:80-108.
[12] 傅寿仲, 戚存扣, 浦惠明, 张洁夫 . 中国油菜栽培科学技术的发展. 中国油料作物学报, 2006,28:86-91.
Fu S Z, Qi C K, Pu H M, Zhang J F . Development of rapeseed cultivation science and technology in China. Chin J Oil Crop Sci, 2006,28:86-91 (in Chinese).
[13] 马霓, 肖圣元, 张明海, 汤万香, 李光明, 张春雷 . 栽培方式对油菜中双11生长及收获特性的影响. 湖北农业科学, 2011,50(2):244-247.
Ma N, Xiao S Y, Zhang M H, Tang W X, Li G M, Zhang C L . Effects of cultivation method on the growth and mechanical harvesting properties of Zhongshuang No. 11 (Brassica napus L.). Hubei Agric Sci, 2011,50(2):244-247 (in Chinese with English abstract).
[14] 官春云, 陈社员, 吴明亮 . 南方双季稻区冬油菜早熟品种选育和机械栽培研究进展. 中国工程科学, 2010,12(2):4-10.
Guan C Y, Chen S Y, Wu M L . Research evolution on breeding and mechanical cultivation of early-mature winter rapeseed in double-crop rice area in southern China. Chin Eng Sci, 2010,12(2):4-10 (in Chinese with English abstract).
[15] 松岛省三 . 稻作诊断与增产技术. 南京: 江苏科学技术出版社, 1982. pp 65-84, 74-75, 96-101.
Matsushima M. Rice Cropping Diagnosis and Yield Increasing Technology. Nanjing: Jiangsu Science and Technology Press, 1982. pp 65-84, 74-75, 96-101(in Chinese).
[16] 周拾禄 . 稻作科学技术. 北京: 农业出版社, 1981. p 22.
Zhou S L. Rice Science and Technology. Beijing: Agriculture Press, 1981. p 22 (in Chinese).
[17] 沈锦根, 徐少安, 王学军, 刘健, 韩东捷 . 后季稻塑盘旱育壮秧标准及培育措施. 江苏农业科学, 1997, ( 6):17-19.
Shen J G, Xu S A, Wang X J, Liu J, Han D J . Standard and cultivation measures for dry season seedlings of late season rice. Jiangsu Agric Sci, 1997, ( 6):17-19 (in Chinese).
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