Maize Straw Return and Nitrogen Rate Effects on Potato (Solanum tuberosum L.) Performance and Soil Physicochemical Characteristics in Northwest China
| Autor: | Philip Ghanney, Huizhen Qiu, Dominic Kwadwo Anning, Chunhong Zhang, Yajun Guo, Yujiao Zhang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Yield (finance) Soil acidification Geography Planning and Development TJ807-830 chemistry.chemical_element Management Monitoring Policy and Law TD194-195 01 natural sciences Renewable energy sources Nutrient GE1-350 Hectare photosynthetically active radiation specific gravity Environmental effects of industries and plants Renewable Energy Sustainability and the Environment Chemistry Nutrient management soil fertility fungi profit margin food and beverages 04 agricultural and veterinary sciences Straw crop growth rate Nitrogen Environmental sciences Agronomy dry matter accumulation 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Soil fertility 010606 plant biology & botany |
| Zdroj: | Sustainability Volume 13 Issue 10 Sustainability, Vol 13, Iss 5508, p 5508 (2021) |
| ISSN: | 2071-1050 |
| DOI: | 10.3390/su13105508 |
| Popis: | The average yield of fresh potato tubers per hectare is relatively low in China, partly due to poor nutrient management. Chronic inorganic N enrichment leads to soil acidification, which deteriorates soil fertility. Straw residues are removed from the field or burnt during land preparation, resulting in nutrient depletion and air pollution. However, these residues can be returned to the soil to improve its fertility. Therefore, a two–year experiment was conducted in an existing field with five years of different inorganic nitrogen (N) rate to determine the effects of straw return and N rate on potato growth, tuber yield, and quality, profit margin, and soil physicochemical properties. The experiment consisted of four N rates: 0 (control, CK), 75 (low N rate, LN), 150 (medium N rate, MN), and 300 (high N rate, HN) kg N ha−1 with and without straw (9 t ha−1) return. The results showed that straw with N enrichment improved soil fertility, which increased tuber yield and quality. Compared to the control, MN + straw treatment stimulated economic tuber yield (34.73% and 38.34%), profit margin (55.51% and 63.03%), and protein content (20.04% and 25.46%) in 2018 and 2019, respectively. Nitrogen enrichment after straw return is a sustainable practice for stimulating potato tuber yield, profit margin, and improving soil fertility to promote sustainable agriculture development. |
| Databáze: | OpenAIRE |
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