Crop yield stability and sustainability in a rice-wheat cropping system based on 34-year field experiment

Han, Xi; Hu, Cheng; Chen, Yunfeng; Qiao, Yan; Liu, Donghai; Fan, Jun; Li, Shuanglai; Zhang, Zhi

doi:10.1016/j.eja.2019.125965

Cited by 54 publications

(23 citation statements)

References 51 publications

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“…The higher CV values of rice and wheat grain yield under mineral fertilizer plots (Table 8) indicated poor yield stability, and an optimized nutrient input was required to attain a sustainable yield (Chen et al, 2018;Han et al, 2020;V. K. Singh et al, 2019).…”

Section: Sustainability Of the Rwsmentioning

confidence: 99%

Long‐term impact of organic and inorganic fertilizers on soil organic carbon dynamics in a rice‐ wheat system

et al. 2022

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Deep soil carbon (C) plays an important role in the global carbon cycle because it is more recalcitrant and remains in the soil for a longer period. Yet, very few studies have reported the impact of long-term fertilization on soil organic carbon (SOC) dynamics in deep soil in a rice-wheat system (RWS). Hence, the objectives of this study were to evaluate the long-term fertilization impact on carbon sequestration and C pools in RWS in the Indo-Gangetic Plain (IGP) of India. Application of 90 kg N, 20 kg P and 25 kg K ha À1 through mineral fertilizers (NPK) + green gram incorporation (GR) + 30 kg N ha À1 through farmyard manure (FYM) sequestered more C (25.86 Mg ha À1 ) in the 0-105 cm soil depth compared with mineral fertilizer alone (1.25 Mg ha À1 ). The C-sequestration rate ranged between 0.61 to 1.23 Mg C ha À1 yr À1 under treatments having organic fertilizer and mineral fertilizer, whereas it varied from 0.06 to 0.39 Mg C ha À1 yr À1 in the treatments receiving mineral fertilizer only. Total C and critical C input were 197 Mg kg À1 and 1.94 Mg C ha À1 yr À1 , respectively under NPK + GR + FYM treatment. Integrated application of mineral fertilizers and organics in treatments NPK + FYM, NPK + SPM (sulphitation press mud), NPK + GR, NPK + GR + FYM and NPK + CR (crop residue) resulted in higher sustainable yield index of RWS compared to mineral fertilizer alone. We conclude that application of organic material along with mineral fertilizers is essential to mitigate the atmospheric C load through C-sequestration in deep soils and to attain sustainable RWS productivity in the IGP.

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Section: Sustainability Of the Rwsmentioning

confidence: 99%

Long‐term impact of organic and inorganic fertilizers on soil organic carbon dynamics in a rice‐ wheat system

et al. 2022

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“…The value of SYI is affected by many field management factors including fertilization, types of plants, and so on. Han et al studied the SYI of wheat and rice under eight different fertilization levels through an experiment over 30 years [16]. They found that fertilization could increase the SYI of both wheat and rice, and the SYI value of wheat ranged from 0.28 to 0.47, while that of rice was higher, ranging from 0.51 to 0.70.…”

Section: Effect Of Long-term Plastic Film Mulching On Maize Yieldmentioning

confidence: 99%

“…However, most previous investigations are field experiments conducted for about 2-4 years [5]. Compared with short-term experiments, long-term studies have more advantages in agricultural sciences, as long-term experiments can provide better opportunities to study crop yield dynamics over time and estimate agricultural sustainability [16,17]. Therefore, long-term field studies need to be carried out to investigate the persistent influence of RFM on agriculture in semiarid regions.…”

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confidence: 99%

Plastic Film Mulching Sustains High Maize (Zea mays L.) Grain Yield and Maintains Soil Water Balance in Semiarid Environment

Zhang

Eldoma

et al. 2020

Agronomy

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Ridge–furrow cultivation with plastic film mulching has been widely used for many years to increase crop yields in semiarid regions. The long-term effects of plastic mulching on crop yield and soil water balance need to be seriously considered to assess the sustainability of this widely used field management technique. A seven-year maize field experiment was conducted during 2012–2018 to estimate the yield sustainability and soil water balance with two treatments—mulching (yes; no) and nitrogen fertilization (yes; no). This resulted in the following four groups—no film mulching, no N application (M0N0); film mulching, no N application (M1N0); no film mulching, N application (M0N1); film mulching and N application (M1N1). Our results show that plastic mulching significantly increased maize yield. A combination of mulching and nitrogen application had the highest sustainability yield index (SYI) of 0.75, which was higher than the other three treatments, with SYI values of 0.31, 0.33, and 0.39, respectively. Plastic film mulching increased soil water content and water storage in both the sowing and harvesting periods and did not cause the formation of dry soil layers. Precipitation storage efficiency (PSE) in the nongrowing season played a key role in maintaining the soil water balance and it was positively affected by plastic film mulching. Our research indicates that plastic mulching and N application could maintain maize yield sustainability and the soil water balance of agriculture in semiarid regions. In addition, we highlight the importance of nongrowing season precipitation, and thus, we suggest that mulching the field land with plastic film throughout the whole year should be adopted by farmers to store more precipitation, which is important to crop growth.

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“…In each treatment, the SI and CV of a parameter were calculated as follows: SI = (P average − SD)/P max (1) CV = SD × 100/P average (2) where P average is the average value, SD is the standard deviation and P max is the maximum value of a parameter across the experimental years. The yield contribution rate (YCR) was calculated to estimate the contributions of fertilizer or soil to maize yields according to the equations described by Han et al [32] as follows:…”

Section: Sampling Measurement and Calculationmentioning

confidence: 99%

Integrated Soil–Crop System Management with Organic Fertilizer Achieves Sustainable High Maize Yield and Nitrogen Use Efficiency in Northeast China Based on an 11-Year Field Study

et al. 2020

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To increase crop productivity while reducing environmental costs, an integrated soil–crop system management (ISSM) strategy was developed and successfully adopted in China. However, little information is available on the long-term ISSM effects on maize agronomic and environmental performance. Therefore, we evaluated the effects of ISSM with combining inorganic and organic fertilizers on maize productivity, N use efficiency (NUE) and N balance and losses as compared with farmers’ practice (FP) and high-yielding practice (HY), based on an 11-year field experiment in Northeast China. Maize yield in ISSM (11.7–14.3 Mg ha−1) achieved 97.7% of that in HY and was increased by 27% relative to FP. The excellent yield performance in ISSM was mainly attributed to optimum plant population structure and yield components. Annual N surplus in ISSM was only 7 kg ha−1, which was considerably lower than that in FP (52 kg ha−1) and HY (109 kg ha−1). Consequently, ISSM obtained significantly lower N losses and greenhouse gases emissions and higher NUE. In contrast to FP, crop performance in ISSM showing better sustainability and inter-annual stability. In conclusion, ISSM is an effective strategy to achieve long-term sustainable high crop yields and NUE with less environmental costs in the intensive agricultural system.

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Crop yield stability and sustainability in a rice-wheat cropping system based on 34-year field experiment

Cited by 54 publications

References 51 publications

Long‐term impact of organic and inorganic fertilizers on soil organic carbon dynamics in a rice‐ wheat system

Long‐term impact of organic and inorganic fertilizers on soil organic carbon dynamics in a rice‐ wheat system

Plastic Film Mulching Sustains High Maize (Zea mays L.) Grain Yield and Maintains Soil Water Balance in Semiarid Environment

Integrated Soil–Crop System Management with Organic Fertilizer Achieves Sustainable High Maize Yield and Nitrogen Use Efficiency in Northeast China Based on an 11-Year Field Study

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