Effect of Liquid Mulch on Potato Yield Structure and Soil Physico-chemical Structure

doi:10.11924/j.issn.1000-6850.casb2024-0760

Abstract

Abstract:

To investigate the effects of liquid mulch on potato yield composition and soil physicochemical structure, considering the arid and semi-arid climatic characteristics of Inner Mongolia, liquid mulch was selected as the mulching material in this study with a view to increasing potato yield and reducing pollution to the environment. The experiment was conducted in Wuchuan County, Hohhot City, Inner Mongolia Autonomous Region, and three treatment plots were set up, namely, basic liquid mulch (A), functional liquid mulch (B) and open field cultivation (CK). The results showed that through comparative analysis, the potato yield of the functional liquid mulch (B) treatment was the highest, reaching 1.98 kg/plant, with an increase of 0.26 kg per plant over the bare-ground (CK) treatment, with a yield increase of 15.12%. In addition, the commercial potato yield and commercial potato rate of the functional liquid mulch treatment were higher than those of the other treatments, indicating its superiority in improving the economic traits of potato. The results of soil nutrient analysis showed that there were significant differences in organic carbon, total phosphorus, pH and effective phosphorus content of soil under different mulching film treatments. Among them, the organic matter content was higher in the soil treated with functional liquid mulch. The economic benefit analysis showed that the functional liquid mulch film cover had higher profit and reduces the environmental problems of plastic mulch film at the same time. In terms of ecological benefits, the use of biodegradable liquid mulch was of great benefit to the alleviation of “white pollution” and the promotion of sustainable green development of agriculture. In summary, functional liquid mulch shows significant advantages in improving potato yield and quality and reducing environmental pollution, and it is an agricultural technology with good economic and ecological benefits.

Key words: liquid film mulching, potato yield, soil physico-chemical structure, biodegradable, economic benefits, ecological benefits

LI Lu, HU Zhichao, QIN Jie, WANG Ying, CHANG Jiang. Effect of Liquid Mulch on Potato Yield Structure and Soil Physico-chemical Structure[J]. Chinese Agricultural Science Bulletin, 2025, 41(15): 88-94.

Figures/Tables 6

References 26

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处理	株高/cm	茎粗/cm	单株块茎数/(粒/株)	单株块茎重/(kg/株)	单株商量薯/(粒/株)	单株商品薯重/(kg/株)
A	56.17±9.33	4.60±1.23	12.67±3.61	1.87±0.47	8.00±1.79	1.61±0.46
B	57.67±9.52	4.45±1.75	11.83±2.64	2.13±0.26	9.33±1.75	1.98±0.25
CK	65.00±4.98	4.47±1.32	10.83±1.47	1.72±0.35	7.83±1.47	1.55±0.35

处理	株高/cm	茎粗/cm	单株块茎数/(粒/株)	单株块茎重/(kg/株)	单株商量薯/(粒/株)	单株商品薯重/(kg/株)
A	56.17±9.33	4.60±1.23	12.67±3.61	1.87±0.47	8.00±1.79	1.61±0.46
B	57.67±9.52	4.45±1.75	11.83±2.64	2.13±0.26	9.33±1.75	1.98±0.25
CK	65.00±4.98	4.47±1.32	10.83±1.47	1.72±0.35	7.83±1.47	1.55±0.35

处理	全氮/(g/kg)	有机碳/(g/kg)	土壤全磷/(g/kg)	C/N	N/P	pH均值	有效磷/(g/kg)
A	1.64±0.28a	12.56±0.47b	0.57±0.06b	7.75±1.03a	2.88±0.25a	8.60±0.12b	0.09±0.01b
B	1.81±0.03a	15.07±0.77a	0.65±0.05ab	8.32±0.48a	2.82±0.2a	8.28±0.13ab	0.05±0.01a
CK	1.92±0.07a	15.87±0.11a	0.81±0.1a	8.26±0.37a	2.40±0.3a	8.09±0.14a	0.12±0.02b

处理	全氮/(g/kg)	有机碳/(g/kg)	土壤全磷/(g/kg)	C/N	N/P	pH均值	有效磷/(g/kg)
A	1.64±0.28a	12.56±0.47b	0.57±0.06b	7.75±1.03a	2.88±0.25a	8.60±0.12b	0.09±0.01b
B	1.81±0.03a	15.07±0.77a	0.65±0.05ab	8.32±0.48a	2.82±0.2a	8.28±0.13ab	0.05±0.01a
CK	1.92±0.07a	15.87±0.11a	0.81±0.1a	8.26±0.37a	2.40±0.3a	8.09±0.14a	0.12±0.02b

处理	总产量/(kg/hm²)	商品薯产量/(kg/hm²)	商品薯率/%	产值/(元/hm²)	人工成本/(元/hm²)	购买成本/(元/hm²)	利润/(元/hm²)
A	28050.00	24150.00	86.00	84150.00	600.00	2158.80	81391.20
B	31905.00	29625.00	93.00	95715.00	600.00	2158.80	92956.20
CK	25860.00	23295.00	90.00	77580.00	0.00	0.00	77580.00