Improving wheat grain yield via promotion of water and nitrogen utilization in arid areas

Tan, Yan; Chai, Qiang; Li, Guang; Zhao, Chunjiang; Yu, Aizhong; Fan, Zhilong; Yin, Wang; Hu, Fang; Fan, Hong; Wang, Qiaomei; Guo, Yaping; Tian, Xuemei

doi:10.1038/s41598-021-92894-6

Cited by 24 publications

(14 citation statements)

References 52 publications

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“…All plants in each plot were harvested after crop maturation. Air-dried GY (kg ha −1 ) was obtained in each plot and weighed 43 , and ear length (EL), ear diameter (ED), kernel number per ear (KN), and 100-kernel weight (KW) were determined.…”

Section: Methodsmentioning

confidence: 99%

Effects of fertilizer under different dripline spacings on summer maize in northern China

Bai

Wang

et al. 2021

Sci Rep

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Maximizing grain yields with effective fertilization technologies and minimizing nitrogen losses is essential in agroecosystems. In this research, we conducted a two-year field experiment to explore whether dripline spacing and fertilization rate would affect maize grain yield. Two dripline spacings (i.e., one drip line per row of maize with a row space of 60 cm and one drip line per two rows of maize) and two fertilization rates (i.e., high fertilization level: N, 180 kg ha−1; P2O5, 90 kg ha−1; and K2O, 90 kg ha−1 and low level: N, 139.5 kg ha−1; P2O5, 76.5 kg ha−1; and K2O, 76.5 kg ha−1) were employed in this research. The results showed that maize yield was significantly affected by both dripline spacing and fertilization rate. The maize yield was 10.2% higher in the treatment with one drip line per two rows than that in the treatment with one drip line per row. Maize yield increased by 10.9% at the high fertilization level compared to that at the low fertilization level. The quantity of cumulative ammonia volatilization was reduced by 15.1% with one drip line per two rows compared to that with one drip line per row, whereas it increased by 26.9% at the high fertilization level compared with that at the low fertilization level. These results indicated that one drip line per two rows with a high fertilization rate increased the yield and could reduce the environmental burden, which may be economically beneficial and environmentally sound for maize fertigation for green agricultural development.

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Section: Methodsmentioning

confidence: 99%

Effects of fertilizer under different dripline spacings on summer maize in northern China

Bai

Wang

et al. 2021

Sci Rep

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“…Similar results by Abedi et al (2011) reported that higher grain yield was obtained under treatment with 240 kg N ha -1 (Optimum N) as compared to 120 kg N ha -1 (lower N), and 360 kg N ha -1 (Higher N). Tan et al (2021) observed the wheat production and performance under three fertilizers N rates (135, 180, and 225 kg N ha -1 ) with two irrigation quotas and concluded that wheat production was higher under the optimum dose of fertilizer N rate at 180 kg N ha −1 .…”

Section: Effect Of Different Nitrogen and Phosphorous Dose On Yield A...mentioning

confidence: 99%

Physiological traits and expression profile of genes associated with nitrogen and phosphorous use efficiency in wheat

Sagwal

Kumar

Sihag

et al. 2023

Preprint

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Background Nitrogen (N) and phosphorous (P) play a very important role in growth and development of wheat as well as major constituents of biological membrane. To meet the plant nutritional demand these nutrients applied in the form of fertilizers. But plant can utilize only half of the applied fertilizer whereas rest is lost thorough surface run off, leaching and volatilization. Thus, to overcome the N/P loss we need to elucidate the molecular mechanism behind the N/P uptake. Methods In our study, we used DBW16 (low NUE), and WH147 (high NUE) wheat genotypes under different doses of N, whereas HD2967 (low PUE) and WH1100 (high PUE) genotypes were studied under different doses of P. To check the effect of different doses of N/P, the physiological parameters like Total chlorophyll content, net photosynthetic rate, N/P content, and N/PUE of these genotypes were calculated. In addition, gene expression of various genes involved in N/P uptake, utilization, and acquisition were studied by quantitative real time- PCR. Results Statistical analysis revealed a lower percent reduction in TCC, NPR, N/P content in N/P efficient wheat genotypes (WH147 & WH1100). A significant increase in relative fold expression of genes under low N/P concentration was observed in N/P efficient genotypes as compared to N/P deficient genotypes. Conclusion Significant differences in physiological data and gene expression among N/ P efficient and deficient wheat genotypes could be useful for future improvement of N/P use efficiency.

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“…Water use efficiency (WUE) is an important indicator for assessing crop productivity, and the increase in wheat yield is highly dependent on water and nutrient supply. In general, an appropriate irrigation and fertilizer strategy can improve WUE, maintaining the crop yield (Tan et al, 2021). However, Wang et al (2017) found increased crop evapotranspiration (ET) at higher fertilizer application, which reduced crop yield and WUE.…”

Section: Core Ideasmentioning

confidence: 99%

Effects of irrigation and fertilization on soil salt migration, yield, and water use efficiency of winter wheat in the Yellow River Delta

Chen

Ren²,

et al. 2022

Crop Science

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Irrigation and fertilization are the most effective measures to inhibit soil salt accumulation and increase yield of wheat (Triticum aestivum L.) grown in saline soils. The present study used a split-plot experimental design with irrigation as the main plot and fertilizer application as the subplot from 2014 to 2016. The experiment had four levels each of irrigation (W0, no irrigation; W1, one irrigation; W2, two irrigations; W3, three irrigations) and fertilization (M, no fertilizer; Y, cow manure; W, chemical fertilizer; and H, 50% cow manure and 50% chemical fertilizer). The study identified sowing, jointing, and maturity as the major salt accumulation periods. After irrigation, the 0-to 20-cm soil salinity during presowing, jointing, and grain filling decreased by 1.09, 0.28, 0.19 g kg −1 , and 0.76, 0.46, and 0.23 g kg −1 , from 2014 to 2016. The wheat roots were mainly distributed in the 0-to 30-cm soil layer. Meanwhile, wheat evapotranspiration (ET) ranged from 153 to 402 and 202 to 451 mm from 2014 to 2016, respectively; and the ET under W3W were 2.62-and 2.23-times higher than W0M. Additionally, W3W increased yield of wheat by 567.0 and 422.2% from 2014 to 2016, compared with W0M. Generally, the water use efficiency (WUE) decreases as irrigation increases; however, this study found no significant difference in WUE between W2 and W3. Meanwhile, the chemical fertilizer resulted in the highest WUE, 3.16-and 2.63-times higher than no fertilizer.Thus, the study proposes W3W as a suitable treatment for wheat in the Yellow River Delta.

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Improving wheat grain yield via promotion of water and nitrogen utilization in arid areas

Cited by 24 publications

References 52 publications

Effects of fertilizer under different dripline spacings on summer maize in northern China

Effects of fertilizer under different dripline spacings on summer maize in northern China

Physiological traits and expression profile of genes associated with nitrogen and phosphorous use efficiency in wheat

Effects of irrigation and fertilization on soil salt migration, yield, and water use efficiency of winter wheat in the Yellow River Delta

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