Effects of Rainfall Harvesting and Mulching on Corn Yield and Water Use in the Corn Belt of Northeast China

Lu, Xianju; Li, Zizhong; Bu, Qingguo; Cheng, Dongjian; Duan, Wenxiao; Sun, Ziqi

doi:10.2134/agronj14.0374

Cited by 34 publications

(18 citation statements)

References 18 publications

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“…Therefore, additional action may be needed to the impacts of precipitation variation. Although the annual precipitation in the region of 400 to 1000 mm basically fills the requirements for corn growth and development [16], extremes such as droughts in May and heavy rainfall in July and August do currently happen [17].…”

Section: Resultsmentioning

confidence: 99%

Weather Conditions Associated with Corn Simulated Yield in the Corn Belt of Northeastern China during the Past Three Decades

Sun¹,

Liu²

2017

Proceedings of the 2nd 2016 International Conference on Sustainable Development (ICSD 2016)

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Abstract-The Corn Belt of Northeastern China (CBNC)accounts for about 35% of the nation' corn production in China. In the past three decades, corn yield in CBNC have increased under changing in climate and crop management. It is important to investigate the contribution of these changing factors to the historical yield increases to improve our understanding of how we can ensure increased yield in the future. In this paper we conducted correlation and regression analyses of climate and simulated corn yield over the period 1980 to 2011 in CBNC. It was found that over three decades, the daily mean, minimum temperature and growing degree days (GDD) per ten year increased at a rate of 0.37°C, 0.47°C and 51°C, respectively. In contrast, the relative humidity and daily mean wind speed decreased gradually at a rate of 0.18 and 1.8 km day -1 , respectively. Not significant change in precipitation was found, although differences between years were large. The daily minimum temperature and solar radiation were the dominant factor to corn potential production. According to a regression analysis of the corn potential yield and the climate factors, the results indicate that corn potential yield decreased 1010 and 1314 kg ha -1 for each 1°C increase growing season mean and minimum temperature, respectively; rain-fed yield declined 2819 and 2437 kg ha -1 for each increase 1°C growing season mean and maximum temperature, respectively. To further improve the potential yield of corn in the coming decades, efforts should be paid to break the potential ceiling reduce the yield gaps by breeding higher yield variety and introduction of new agricultural technology.

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Section: Resultsmentioning

confidence: 99%

Weather Conditions Associated with Corn Simulated Yield in the Corn Belt of Northeastern China during the Past Three Decades

Sun¹,

Liu²

2017

Proceedings of the 2nd 2016 International Conference on Sustainable Development (ICSD 2016)

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“…Of these treatments, the common plastic film increased the maize biomass most significantly, while the two biodegradable mulch films did not differ significantly from each other. (2) During the three years, treatment A increased the maize biomass by 6 showed that the changes in maize biomass during the growth period fitted a logistic shape growth curve, with the film mulching having a greater impact on maize biomass in the later growth stages than in the early growth stages. Fig.…”

Section: Effect Of Different Mulch Films On Crop Biomassmentioning

confidence: 92%

The effects of biodegradable mulch film on the growth, yield, and water use efficiency of cotton and maize in an arid region

Deng

Wang

2019

Preprint

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Plastic residual film pollution in China is serious, and the use of degradable mulch film instead of plastic mulch can effectively alleviate this situation. The substitution of common polyethylene plastic mulch film with biodegradable mulch film in the agricultural production of cotton and maize in an arid region was investigated in the present study. Using bare soil as the control, we compared the effects of common polyethylene plastic film and biodegradable mulch film on crop growth, yield, and water use efficiency (WUE) in maize and cotton. The results indicated that: (1) the biodegradable mulch film in this region remained intact for 60 days after being laid down, significantly degrading after 120 days, and was associated with increased soil temperature, moisture conservation, and degradability in comparison to a bare soil control. (2) Both the biodegradable mulch film and the polyethylene plastic film significantly increased various physiological parameters, such as crop height, stalk diameter, and leaf area. (3) The biodegradable mulch film significantly increased maize and cotton crop yield by 69.4-76.2% and 65.2-71.9%, respectively, compared to the bare soil control. (4) Compared to the bare soil control, the biodegradable mulch film effectively increased WUE in the crops by 64.5-73.1%. In summary, biodegradable mulch film had comparable results to the common polyethylene plastic film in increasing soil temperature, moisture conservation, crop growth, yield, and WUE. As the biodegradable mulch film causes no residual pollution, it is thus preferable to common plastic mulch film for agricultural applications in arid regions and supports the sustainable development of agroecosystems.

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“…Northeast China produces 87 million Mg of corn annually, accounting for 34% of the total corn production, making it the largest commercial grain supply base in the country (National Bureau of Statistics of China, NBSC, ). However, regional drought often leads to large declines in corn yield due to annual and seasonal variations in rainfall (Lu et al., ). The key to increasing regional agricultural productivity is to maximize the utilization of erratic rainwater resources.…”

Section: Introductionmentioning

confidence: 99%

Horizontal variability of soil water content, evaporation and throughfall in corn row

Sun

2020

Soil Science Soc of Amer J

Self Cite

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Horizontal variability of soil water content (θ), soil surface water evaporation (E), and throughfall (TF) at the row scale have great influence on agricultural production, hydrological simulation and sampling strategy. The objective of the present study was to assess the horizontal variability and the most representative measurement position of θ, E, and TF at the corn (Zea mays L.) row scale in a field experiment. Five measurement positions of P0, P15, P30, P45 and P60 were at 0, 15, 30, 45 and 60 cm from the corn row line, respectively. The horizontal variability of θ mainly existed in 0–15 cm soil layer (P = 0.031). The coefficient of variation (CV) of the θ of 0–15, 30, and 50 cm ranged from 7.0–25.1%, 4.1–10.2%, and 5.3–11.4%, respectively. The CV of the E and TF ranged from 9.9–27.2% and 20.4–35.6%, respectively. The P15 or P45 was regarded as the most representative measurement position for measuring the θ of 0–15, 30, and 50 cm, with a probability of 51.0–58.8%, 43.1–43.1%, and 54.9–60.8%, respectively, and that for TF was 93.9–84.8%. The probability of P15 as the most representative measurement position to determine E was 61.1%. Therefore, horizontal variability of θ, E, and TF in a row‐planted crop field could not be ignored. The P15 was the most representative measurement position of θ, E, and TF in such an experimental condition.

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Effects of Rainfall Harvesting and Mulching on Corn Yield and Water Use in the Corn Belt of Northeast China

Cited by 34 publications

References 18 publications

Weather Conditions Associated with Corn Simulated Yield in the Corn Belt of Northeastern China during the Past Three Decades

Weather Conditions Associated with Corn Simulated Yield in the Corn Belt of Northeastern China during the Past Three Decades

The effects of biodegradable mulch film on the growth, yield, and water use efficiency of cotton and maize in an arid region

Horizontal variability of soil water content, evaporation and throughfall in corn row

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