Effects of Application of Bag-Controlled Slow-Release Fertilizer on Growth and Soil Nutrients of Eucalyptus and Chinese Fir Plantation

doi:10.13466/j.cnki.lyzygl.2021.05.014

Abstract

Abstract:

This study aimed to explore the effect of bag-controlled slow-release fertilizer on forest growth and soil nutrient improvement in eucalyptus and Chinese fir plantations.We measured forest growth index and soil physical and chemical properties under six fertilization treatments:conventional fertilization (G1),bag controlled slow-release fertilizer (G2),biological fertilizer (G3-1,G3-2,G3-3)and no fertilizer (CK).The results showed that:1)Compared with G1,the tree height,DBH and volume of individual tree of eucalyptus were increased by 2.97%,5.14% and 1.89%,respectively,and those of Chinese fir were increased by-2.33%,0.82% and 15.79%,respectively after 16 months of fertilization.2)The effect on eucalyptus volume was as follows:G3-3>G3-2> G2>G1>G3-1>CK and the Chinese fir volume was G3-3> G2>G3-2> G1>G3-1>CK.3)The contents of organic matter,total nitrogen,total phosphorus,total potassium and nitrogen in the soil were increased,and the pH of the soil was decreased.In general,the application of G1,G2,and G3-1,G3-2,G3-3 can promote the growth of trees and improve the soil environment among which G2 is outperform G3-1 and G1,but worse than G3-3 indicating that the application of bag-controlled slow-release fertilizer could not only promote the growth of trees,but also facilitate soil stability and reduce the use of chemical fertilizer.

Key words: bag-controlled slow-release fertilizer, biological fertilizer, soil nutrient, eucalyptus, Chinese fir

CLC Number:

S147.2
S714

LUO Mi, HUANG Changmou, HAN Hua, HUANG Minqiu, NING Jian, PAN Bo, CAO Jizhao. Effects of Application of Bag-Controlled Slow-Release Fertilizer on Growth and Soil Nutrients of Eucalyptus and Chinese Fir Plantation[J]. FOREST RESOURCES WANAGEMENT, 2021, (5): 104-111.

Figures/Tables 8

Tab.1

Tab.2

Tab.3

Calculation formula of growing stock of different tree species

树种	立木材积公式	文献
杉木	$V 杉 = 0.65671 × 10 - 4 × D 1.769412 × H 1.069769$	[20]
桉树	$V 桉 = C 0 × D C 1 - C 2 × (D + H)) × H (C 3 + C 4 × (D + H))$	[21]

Tab.3

Tab.4

Tab.5

Tab.6

Fig.1

Fig.2

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供试树种	pH	有机质/(g/kg)	全氮/(g/kg)	全磷/(g/kg)	全钾/(g/kg)	碱解氮/(mg/kg)
桉树	4.45±0.07	48.06±5.87	1.82±0.32	0.74±0.11	3.03±0.44	78.80±45.36
杉木	4.63±0.18	17.14±0.59	0.74±0.19	0.35±0.01	8.05±0.47	54.03±19.07

处理组编号	施肥处理	桉树		杉木
处理组编号	施肥处理	施肥量/(kg/hm²)	施肥面积/hm²	施肥量/(kg/hm²)	施肥面积/hm²
CK	未施肥对照	0	0.5	0	0.5
G1	非袋控肥	1650	1	2505	2
G2	袋控缓释肥	1650	1	2505	2
G3-1	生物有机肥1	1650	1	2505	2
G3-2	生物有机肥2	3300	1	5010	1
G3-3	生物有机肥3	4950	1	7515	1

树种	处理	CK	G1	G2	G3-1	G3-2	G3-3
桉树
	DBH1/cm	9.40	9.37	9.29	9.12	10.14	9.75
	T1/cm	1.32	1.47	1.63	1.41	1.42	1.56
	T2/cm	2.0	2.36	2.43	2.16	2.08	2.62
	P1/%	14.04	15.69	17.55	15.46	14.00	16.00
	P2/%	21.28	25.19	26.16	23.68	20.51	26.87
杉木
	DBH1/cm	3.12	2.64	3.28	3.15	3.11	3.06
	T1/cm	2.86	3.60	3.34	3.30	4.01	4.00
	T2/cm	4.18	5.14	5.02	4.60	4.87	5.16
	P1/%	91.67	136.36	101.83	104.76	128.94	130.72
	P2/%	133.97	194.70	153.05	146.03	156.59	168.63

树种	处理	CK	G1	G2	G3-1	G3-2	G3-3
桉树
	H1/m	12.52	12.95	12.79	12.21	13.05	12.22
	T1/m	0.47	0.58	0.83	0.76	0.79	1.03
	T2/m	3.52	3.70	3.89	3.63	3.57	3.91
	P1/%	3.75	4.48	6.49	6.22	6.05	8.43
	P2/%	28.11	28.57	30.41	29.73	27.36	31.99
杉木
	H1/m	2.70	2.59	2.87	2.72	2.74	2.73
	T1/m	1.40	1.84	1.66	1.65	2.00	2.09
	T2/m	1.80	2.43	2.45	2.37	2.57	2.78
	P1/%	51.85	71.04	57.84	60.66	72.99	76.56
	P2/%	66.67	93.82	85.37	87.13	93.79	101.83

树种	处理	CK	G1	G2	G3-1	G3-2	G3-3
桉树
	V1/ cm³	0.04469	0.04582	0.04460	0.04134	0.05328	0.04672
	T1/ cm³	0.01401	0.01638	0.01884	0.01540	0.01812	0.02023
	T2/ cm³	0.03564	0.04229	0.04309	0.03649	0.04535	0.04693
	P1/%	31.36	35.75	42.23	37.26	34.02	43.30
	P2/%	79.76	91.63	96.93	88.26	85.11	100.47
杉木
	V1/ cm³	0.00142	0.00101	0.00166	0.00146	0.00144	0.00139
	T1/ cm³	0.00561	0.00723	0.00771	0.00715	0.00975	0.00983
	T2/ cm³	0.00964	0.01292	0.01496	0.01257	0.01402	0.01555
	P1/%	394.33	713.55	464.53	490.21	678.26	706.41
	P2/%	677.21	1273.96	900.38	861.53	975.25	1117.90