Deficit drip irrigation based on crop evapotranspiration and precipitation forecast improves water‐ use efficiency and grain yield of summer maize

Lu, Jun; Ma, Lihui; Hu, Tiantian; Geng, Chenming; Yan, Shicheng

doi:10.1002/jsfa.11394

Cited by 15 publications

(8 citation statements)

References 46 publications

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“…Zhou et al [92] found higher grain yields of hybrid rice due to improved WUE and crop-water relationships under water-deficit conditions. In addition to deficit irrigation, micro-irrigation, deficit drip irrigation, and planting patterns can also enhance WUE under drought-prone conditions [93][94][95]. However, productivity and WUE of hybrid crop cultivars can also strongly depend on agronomic practices and climatic conditions, e.g., Buczek [96] reported that grain yield and quality of hybrid wheat varied significantly with tillage practices, whereas Rezaei et al [97] found that phenology of wheat cultivars varied climatic changes.…”

Section: Discussionmentioning

confidence: 99%

Performance of Hybrid Wheat Cultivars Facing Deficit Irrigation under Semi-Arid Climate in Pakistan

et al. 2021

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Predicted decrease in water availability for crop production and uncertainty in climatic conditions require devising the irrigation strategies to increase water use efficiency (WUE) for sustainable crop production. The development of crop cultivars with higher WUE is a pre-requisite for such strategies, particularly in developing countries, including Pakistan, who face stern food security challenges. A two-year field study was conducted following a split-plot randomized complete block design to understand the effects of wheat cultivars (hybrid cultivars, 18A-1 and 18A-2, and local cultivar Ghaneemat IBGE-2016), sowing dates (15th November, 30th November, and 15th December), and irrigation regimes [I (103 mm), II (175 mm), III (254 mm), and IV (330 mm) at four different growth stages of tillering, booting, anthesis and grain filling on wheat productivity, biomass production and grain yield, and crop-water relations. Early sown hybrid cultivars 18A-1 and 18A-2 showed significantly higher biological and grain yields compared to the local cultivar (59% and 69% higher than the local cultivar). Trends in biomass production and grain yield were also similar at later sowing dates of 30th November and 15th December. However, biological and grain yields decreased with delay in sowing for each cultivar. The data also revealed that hybrid cultivars were better suited to deficient irrigation and generally produced significantly higher biological and grain yields under each moisture regime. Cultivars, sowing dates, and irrigation regime differed significantly for their effects on the Soil Plant Analysis Development (SPAD) values, chlorophyll a and b contents but not for carotenoids. Sowing dates and irrigation regimes had significant effects on relative water content (RWC), water saturation deficit (WSD), water uptake capacity (WUC), and water retention capacity (WRC); however, only WUC varied significantly between the cultivars. The phenological data show that hybrid cultivars took more days to maturity and grain filling than the local cultivar, and days decreased with delayed sowing. The biological and grain yields show significant positive correlations with SPAD values (p < 0.001) and days to maturity (p < 0.001). Our study shows that hybrid wheat cultivars can be opted for higher biomass production and grain yields under deficit irrigation scenarios of semi-arid climatic conditions in Pakistan. Moreover, the hybrid wheat cultivars can perform better than the indigenous cultivar even for delayed sowing dates of 30th November and 15th December.

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Section: Discussionmentioning

confidence: 99%

Performance of Hybrid Wheat Cultivars Facing Deficit Irrigation under Semi-Arid Climate in Pakistan

et al. 2021

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“…Beishan and Qinling Mountains divide Shaanxi Province into three natural regions: the northern Shaanxi Plateau, the central Guanzhong Plain, and the southern Qinba Mountains (Nascimento 2020, Yue et al 2021). The Guanzhong Plain has been known as a granary since ancient times (He and Zhou 2016, Forte et al 2017, Ruis 2021, Simão and Johnston 2021, Lu et al 2022). In the process of maize planting, it is necessary to study the main agronomic traits and their correlation with yield, to clarify the main factors affecting yield, and to provide a basis for selecting superior hybrids (Fernando 2020, Hou et al 2020, Tao 2020.…”

Section: Introductionmentioning

confidence: 99%

Multiple Linear Regression and Correlation Analysis Of Yield of Summer Maize Varieties in Shaanxi Province, China

Hao¹

2023

Bangladesh J. Bot.

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The main factors affecting the yield of mid-ripening maize varieties were clarified to provide reference for breeding and production of summer maize varieties in Guanzhong Plain, Shaanxi Province. According to the relevant agronomic trait data of 11 new maize varieties planted in the Guanzhong Plain summer maize regional trial introduced in Shaanxi Province in 2019, analysis of the main characters of the new maize varieties were carried out using the multiple linear regression method. It can provide reference for the selection of maize agronomic traits. The agronomic traits that were significantly related to yield of summer maize varieties in Shaanxi Province were 100-grain 1weight, number of grains in row, seed rate, empty stalk rate and ear length, etc. When selecting maize varieties, under the premise of ensuring proper 100-grain weight and ear length, one should pay attention to the selection of varieties with high seed rate and low empty stalk rate. In the breeding of high-yielding maize varieties, lodging resistance should be enhanced, the rate of empty stalks should be reduced, the rate of seed production should be increased, 100-grain weight and ear diameter should be appropriately increased, and ear height should be reduced. Bangladesh J. Bot. 51(4): 979-985, 2022 (December) Special

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“…Maximum nitrogen use efficiency was obtained with good quality irrigation treatment [ 13 ]. Deficit drip irrigation based on crop evapotranspiration and precipitation forecast is beneficial to improve crop water use efficiency and maintain high grain yield in semi-arid and semi-humid regions [ 14 ]. While the effects of irrigation treatments on average dry matter contents of the lines were not found to be significant, significant differences were observed in water use efficiency and kernel yield of dent corn lines [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Impact of Drip Irrigation and Nitrogen Fertilization on Soil Microbial Diversity of Spring Maize

Sarula

Heng-shan

Zhang

et al. 2022

Plants

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Given the shortage of water resources and excessive application of nitrogen fertilizers in irrigated areas, we explored the effect of water–nitrogen coupling on soil microbial diversity in maize fields irrigated using shallow buried droppers. A field experiment (split-plot design) was used with irrigation amounts set at 40%, 50%, and 60% of the conventional amount; furthermore, 13 water and nitrogen coupling treatments were designed. The secondary area was the nitrogen application level, corresponding to 50%, 70%, and the original conventional application amounts. The results showed that the effect of irrigation amount on bacterial community composition was greater than that of nitrogen, whereas the effect of nitrogen on fungi was greater than that on bacteria. No significant difference was detected in the α diversity index or species richness of bacteria and fungi. Available phosphorus and organic carbon contents significantly correlated with the community structure of soil bacteria (p < 0.05). The relative abundances of bacteria and fungi were stable with the decrease of nitrogen application rate at the irrigation rate of 2000 m3 ha−1. With the decrease of irrigation amount, the relative abundance of bacteria and fungi was stable under the treatment of 210 kg ha−1 nitrogen fertilizer. Moreover, the relative abundance of nitrogen-fixing bacteria related to the nitrogen cycle was increased by irrigation of 2000 m3 ha−1 and nitrogen application of 210 kg ha−1. Moderate reduction of subsequent N supply should be as a prior soil management option in a high N input agroecosystem.

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Deficit drip irrigation based on crop evapotranspiration and precipitation forecast improves water‐ use efficiency and grain yield of summer maize

Cited by 15 publications

References 46 publications

Performance of Hybrid Wheat Cultivars Facing Deficit Irrigation under Semi-Arid Climate in Pakistan

Performance of Hybrid Wheat Cultivars Facing Deficit Irrigation under Semi-Arid Climate in Pakistan

Multiple Linear Regression and Correlation Analysis Of Yield of Summer Maize Varieties in Shaanxi Province, China

Impact of Drip Irrigation and Nitrogen Fertilization on Soil Microbial Diversity of Spring Maize

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