Coupling effects of irrigation amount and fertilization rate on yield, quality, water and fertilizer use efficiency of different potato varieties in Northwest China

Zhang, Fan; Chen, Mingjia; Fu, Jintao; Zhang, Xiangzhu; Liu, Yuan; Shao, Yanchun; Xing, Yingying; Wang, Xiukang

doi:10.1016/j.agwat.2023.108446

Cited by 31 publications

(3 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similar findings were reported in previous studies, where irrigation water had a negative effect on tuber crude protein content [ 25 ]. This may be related to the fact that the increased irrigation amount improved the flow of water from xylem to tuber, resulting in a dilution of the crude protein content [ 26 ]. The main effect of N treatments followed the pattern N2 > N1 > N0, with significant increases of 17.2% and 16.7% for N2 and N1, respectively, compared with N0, indicating that N inputs had a positive effect on tuber crude protein content.…”

Section: Resultsmentioning

confidence: 99%

Synergistic Effects of Soil-Based Irrigation and Manure Substitution for Partial Chemical Fertilizer on Potato Productivity and Profitability in Semiarid Northern China

Jiang,

et al. 2024

Plants

View full text Add to dashboard Cite

Soil-based irrigation and the partial substitution of chemical fertilizers with manure are promising practices to improve water and nitrogen (N) use efficiency. We hypothesize that their combination would simultaneously benefit potato production, tuber quality and profitability. A two-year experiment was conducted in semiarid northern China to investigate the combined effects of three water treatments [rainfed (W0), soil-based irrigation (W1), conventional irrigation (W2)] and three N treatments [no N (N0), chemical N (N1), 25% manure substitution (N2)] on these indicators, and to perform a comprehensive evaluation and correlation analysis. The results showed that water and N treatments separately affected all indicators except vitamin C content. Compared to W2, W1 significantly increased water productivity by 12% and irrigation water use efficiency (IWUE) by 30% due to 10% lower evapotranspiration and 21% lower water use. However, W1 and W2 negatively affected crude protein content. Conversely, this was compensated by the combination with N1 and N2. There were slight differences between N1 and N2 for all indicators on average across water treatments, while under W1, N2 significantly increased leaf area index (LAI) and N recovery efficiency (REN) by 18% and 29.4%, respectively, over N1. Also, comprehensive evaluations showed that W1N2 performed best, with the highest tuber yield, profit and acceptable quality. This can be explained by the increase in LAI, IWUE and REN due to the positive correlations with tuber yield and net return. Consequently, soil-based irrigation combined with 25% manure substitution had complementary effects on tuber quality and synergistic effects on potato productivity and profitability.

show abstract

Section: Resultsmentioning

confidence: 99%

Synergistic Effects of Soil-Based Irrigation and Manure Substitution for Partial Chemical Fertilizer on Potato Productivity and Profitability in Semiarid Northern China

Jiang,

et al. 2024

Plants

View full text Add to dashboard Cite

show abstract

“…Agronomic measures are divided into tillage [ 13 ], mulching [ 14 ], water-fertilizer coupling [ 15 ], chemical regulation [ 16 ], and crop allocation (such as intercropping [ 17 ] and agroforestry [ 18 ]), deficit irrigaion [ 19 ]. Their purpose is to obtain more crop yield, increase soil fertility, and improve soil ecological environment and crop quality [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

Suitability of agronomic water saving in karst areas and its enlightenment in the karst desertification control

Wu,

Wang

2024

Heliyon

View full text Add to dashboard Cite

“…Insufficient N fertilizer results in dwarfed, yellowed potato plants and weakened growth, which in turn affects tuber formation and leads to lower yields [18]. On the contrary, abundant N fertilizer leads to luxuriant plant growth, enhanced photosynthesis, and the increased accumulation of organic matter, which contributes to improving the yield and quality of potatoes [19]. Many studies have shown that the rational application of additional N fertilizer can effectively promote the above-ground growth of potatoes, with yield improving with the increase in N [20,21].…”

Section: Introductionmentioning

confidence: 99%

Impacts of Multi-Strategy Nitrogen Fertilizer Management on Potato Yield and Economic Gains in Northeast China

He,

Luo,

Zha

et al. 2023

Agronomy

View full text Add to dashboard Cite

Differentiated nitrogen (N) application styles and dosages can directly affect crop yield and planting costs. To maximize the efficiency of N fertilizer utilization and solve the problem of increasing production without increasing income, the Decision Support Systems for Agrotechnology Transfer (DSSAT) model was used in this study to carry out experiments simulating different N application styles and dosages for potatoes at 15 meteorological observation stations in the northeast region of China during 2013–2017. The present study aims to analyze the relationship among yield, cost, and net gains under different N fertilizer management scenarios by combining the cost-benefit method. The main conclusions are as follows: (1) the staged and incremental application of N fertilizer during the potato growth period can promote a yield increase. The lowest yield was achieved by a one-time basal application of N fertilizer at sowing, and the highest yield was observed when N fertilizer was applied in a 1:1 ratio at sowing and the end of tuber formation, respectively. (2) The range for N fertilizer application to achieve the highest potato yield at each station is 275–330 kg·ha−1. (3) The highest potato yield under sufficient N application treatments did not correspond to the highest net gains. Potato net gains at all stations showed an increasing-then-decreasing trend with the increase in N application. The highest gains were obtained when 220 kg·ha−1, 220 kg·ha−1, and 275 kg·ha−1 of N fertilizer were applied in a 1:1 ratio as a basal fertilizer and supplementary fertilizer at sowing, and the end of tuber formation in Heilongjiang, Jilin, and Liaoning provinces, respectively. This study provides a reference program for potato planting with the highest benefits for regional governments, farmers, and enterprises and aims to improve the status quo of potato planting, increasing production without increasing income.

show abstract

Coupling effects of irrigation amount and fertilization rate on yield, quality, water and fertilizer use efficiency of different potato varieties in Northwest China

Cited by 31 publications

References 63 publications

Synergistic Effects of Soil-Based Irrigation and Manure Substitution for Partial Chemical Fertilizer on Potato Productivity and Profitability in Semiarid Northern China

Synergistic Effects of Soil-Based Irrigation and Manure Substitution for Partial Chemical Fertilizer on Potato Productivity and Profitability in Semiarid Northern China

Suitability of agronomic water saving in karst areas and its enlightenment in the karst desertification control

Impacts of Multi-Strategy Nitrogen Fertilizer Management on Potato Yield and Economic Gains in Northeast China

Contact Info

Product

Resources

About