Effects of Full-nutrient Pipeline Trunk Transfusion and Drip on Nutritional Growth and Photosynthetic Characteristics of Chinese Chestnuts

doi:10.11923/j.issn.2095-4050.cjas2023-0270

Abstract

Abstract:

The effect of pipeline trunk transfusion and drip fertilizers on the nutritional growth and photosynthetic characteristics of Chinese chestnut was explored in this paper, with a view to providing a theoretical basis for the application of this technology in Chinese chestnut cultivation. The test was conducted with the 3-year-old Chinese chestnut cultivar ‘Yanzi’ as the material and set up 3 fertilization periods and 3 fertilization concentrations to carry out a 3-factor, 3-level orthogonal test. The test was conducted with no fertilizer as control (CK) and a total of 10 treatments. The results showed that pipeline trunk transfusion and drip fertilizers significantly improved branch growth indexes compared to CK treatment. Moreover, fertilization in early May (T₁) significantly affected branch length, thickness, and internode length, and fertilization in early-mid June (T₂) affected branch thickness. The promotional effects of pipeline trunk transfusion and drip fertilizers on the photosynthetic properties of Chinese chestnut leaves increased with increasing fertilizer application. Comprehensive evaluation and analysis by entropy weight-TOPSIS method revealed that the C₉ treatment with N₄ concentration (35.55 g MS powder+ 2.775 g CH₄N₂O+ 8.025 g KH₂PO₄+ 5 L of water) of water-soluble fertilizers applied at all the three periods of T₁, T₂, and T₃, respectively, was found to be the best fertilizer application. In conclusion, the pipeline trunk transfusion and drip fertilizers had a significant promotion effect on the nutritional growth and photosynthetic characteristics of Chinese chestnuts; the C₉ treatment was the most favorable to the nutritional growth and photosynthetic characteristics of Chinese chestnuts.

Key words: pipeline trunk transfusion and drip fertilizers, Chinese chestnuts, branch growth, photosynthetic characteristics

ZHANG Tengfei, WANG Jimeng, LI Wenlong, ZHANG Jingzheng, YU Liyang, ZHANG Hai’e, CAO Fei. Effects of Full-nutrient Pipeline Trunk Transfusion and Drip on Nutritional Growth and Photosynthetic Characteristics of Chinese Chestnuts[J]. Journal of Agriculture, 2025, 15(1): 51-56.

Figures/Tables 6

References 30

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处理	MS粉/g	尿素/g	磷酸二氢钾/g	清水/L
N₁	0	0	0	5
N₂	11.850	0.925	2.675	5
N₃	23.700	1.850	5.350	5
N₄	35.550	2.775	8.025	5

处理	MS粉/g	尿素/g	磷酸二氢钾/g	清水/L
N₁	0	0	0	5
N₂	11.850	0.925	2.675	5
N₃	23.700	1.850	5.350	5
N₄	35.550	2.775	8.025	5

编号	施肥浓度			单株(T₁+T₂+T₃)施肥总量
编号	T₁	T₂	T₃	MS粉/g	尿素/g	磷酸二氢钾/g
CK	N₁	N₁	N₁	0	0	0
C₁	N₂	N₂	N₂	35.550	2.775	8.025
C₂	N₂	N₃	N₃	59.250	4.625	13.375
C₃	N₂	N₄	N₄	82.950	6.475	18.725
C₄	N₃	N₂	N₃	59.250	4.625	13.375
C₅	N₃	N₃	N₄	82.950	6.475	18.725
C₆	N₃	N₄	N₂	71.100	5.550	16.050
C₇	N₄	N₂	N₃	71.100	5.550	16.050
C₈	N₄	N₃	N₂	71.100	5.550	16.050
C₉	N₄	N₄	N₄	106.650	8.325	24.075

编号	施肥浓度			单株(T₁+T₂+T₃)施肥总量
编号	T₁	T₂	T₃	MS粉/g	尿素/g	磷酸二氢钾/g
CK	N₁	N₁	N₁	0	0	0
C₁	N₂	N₂	N₂	35.550	2.775	8.025
C₂	N₂	N₃	N₃	59.250	4.625	13.375
C₃	N₂	N₄	N₄	82.950	6.475	18.725
C₄	N₃	N₂	N₃	59.250	4.625	13.375
C₅	N₃	N₃	N₄	82.950	6.475	18.725
C₆	N₃	N₄	N₂	71.100	5.550	16.050
C₇	N₄	N₂	N₃	71.100	5.550	16.050
C₈	N₄	N₃	N₂	71.100	5.550	16.050
C₉	N₄	N₄	N₄	106.650	8.325	24.075

施肥时期	结果枝长度		结果枝粗度		节间长		新生芽数
施肥时期	F值	P值	F值	P值	F值	P值	F值	P值
T₁	26.584	0.000	13.802	0.000	6.376	0.007	2.472	0.110
T₂	2.967	0.074	17.237	0.000	1.289	0.298	2.822	0.083
T₃	0.242	0.787	1.953	0.168	0.087	0.917	1.077	0.360