Optimizing the lateral dripline spacing of drip-irrigated aerobic rice to increase water productivity and profitability under the water-limited condition

Samoy-Pascual, Kristine; Lampayan, Rubenito M.; Remocal, Alaissa T.; Orge, Ricardo F.; Tokida, Takeshi; Mizoguchi, Masahiro

doi:10.1016/j.fcr.2022.108669

Cited by 10 publications

(6 citation statements)

References 30 publications

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“…The average soil volumetric water content in the cultivated layer (0-40 cm) of spring tomato and autumn tomato treated with C2 was significantly higher than that of C3 by about 6.67% and 6.69%, respectively. Drought stress limits root morphological development ( Enciso et al., 2007 ; Samoy-Pascual et al., 2022 ; Fan et al., 2023 ). The conclusion of this study is consistent with the conclusion of Liu’s ( Liu et al., 2019 ) study that too high or too low drip pipe spacing is not conducive to the development of alfalfa root morphology under drip irrigation.…”

Section: Discussionmentioning

confidence: 99%

The layout measures of micro-sprinkler irrigation under plastic film regulate tomato soil bacterial community and root system

Zhang

Xiao²,

Li³

et al. 2023

Front. Plant Sci.

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IntroductionThe change in rhizosphere soil bacterial community and root system under new water-saving device is not clear.MethodsA completely randomized experimental design was used to explore the effects of different micropore group spacing (L1: 30 cm micropore group spacing, L2: 50 cm micropore group spacing) and capillary arrangement density (C1: one pipe for one row, C2: one pipe for two rows, C3: one pipe for three rows) on tomato rhizosphere soil bacteria community, roots and tomato yield under MSPF. The bacteria in tomato rhizosphere soil were sequenced by 16S rRNA gene amplicon metagenomic sequencing technology, the interaction of bacterial community, root system and yield in tomato rhizosphere soil was quantitatively described based on regression analysis.ResultsResults showed that L1 was not only beneficial to the development of tomato root morphology, but also promoted the ACE index of tomato soil bacterial community structure and the abundance of nitrogen and phosphorus metabolism functional genes. The yield and crop water use efficiency (WUE) of spring tomato and autumn tomato in L1 were about 14.15% and 11.27%, 12.64% and 10.35% higher than those in L2. With the decrease of capillary arrangement density, the diversity of bacterial community structure in tomato rhizosphere soil decreased, and the abundance of nitrogen and phosphorus metabolism functional genes of soil bacteria also decreased. The small abundance of soil bacterial functional genes limited the absorption of soil nutrients by tomato roots and roots morphological development. The yield and crop water use efficiency of spring and autumn tomato in C2 were significantly higher than those in C3 about 34.76% and 15.23%, 31.94% and 13.91%, respectively. The positive interaction between soil bacterial community and root morphological development of tomato was promoted by the capillary layout measures of MSPF.DiscussionThe L1C2 treatment had a stable bacterial community structure and good root morphological development, which positively promoted the increase of tomato yield. The interaction between soil microorganisms and roots of tomato was regulated by optimizing the layout measures of MSPF to provide data support for water-saving and yield-increasing of tomato in Northwest China.

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Section: Discussionmentioning

confidence: 99%

The layout measures of micro-sprinkler irrigation under plastic film regulate tomato soil bacterial community and root system

Zhang

Xiao²,

Li³

et al. 2023

Front. Plant Sci.

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“…The results showed that a 15% reduction in water demand (10,200 m 3 ·ha −1 , W 1 ) did not reduce the grain yield of drought‐resistant rice variety (T‐43). Studies have shown that drip‐irrigated rice achieves yields comparable to rice cultivated under conventional flooding via increased effective panicle number and reservoir capacity (J. Wang et al., 2023), but the low seed‐setting rate (65.0%–86.5%) led to the actual yield of drip‐irrigated rice (35,500‐77,000 kg·ha −1 ) being much lower than the expected yield (120,500 kg·ha −1 ; Kristine et al., 2022; Tang et al., 2022; J. Wang et al., 2023; X. B.…”

Section: Discussionmentioning

confidence: 99%

The effect of nitrogen and water management on the yield and endogenous hormone levels of drip‐irrigated rice

et al. 2023

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Improving the management of water and fertilizers is an effective method for enhancing the seed‐setting performance of rice. This study aimed to explore the regulation of optimized water and nitrogen management on the root‐leaf hormone balance and seed‐setting performance of drip‐irrigated rice. In a 2‐year field experiment, T‐43 (a drought‐resistant cultivar) and LX‐3 (a drought‐sensitive cultivar) were cultivated under two drip irrigation treatments (W1, limited, and W2, deficit) and three nitrogen fertilization treatments (N1, seedling:tillering:panicle:grain‐filling, 30%:50%:13%:7%; N2, 20%:40%:30%:10%; and N3, 10%:30%:40%:20%). Compared with other treatments, the W1N2 treatment increased the seed‐setting rate and grain biomass accumulation (2.7‐9.2% and 4.5‐69.8%) of the two cultivars on the basis of producing a higher effective panicle number, and T‐43 had a much higher seed‐setting rate and yield than LX‐3 (6.8‐14.6%). Increased fertilizer applications at the panicle and grain‐filling stages (N2) enhanced the root oxidation activity (ROA) and the zeatin+zeatin riboside (Z + ZR) and gibberellic acid (GA3) contents in the roots in the 0–10 cm layer and in the leaves from the heading stage to 20 d after heading. The grain biomass accumulation of T‐43 was significantly positively correlated with ABA and Z + ZR in the roots and leaves, while the grain biomass accumulation of LX‐3 was significantly positively correlated with IAA, ABA, Z + ZR/ABA and GA3/ABA in the roots in the 10–20 cm layer. Overall, W1N2 promoted grain biomass accumulation by modulating the Z + ZR and ABA balance in roots and leaves, improved the root–shoot ratio, and enhanced ROA, thereby improving the seed‐setting performance of drip‐irrigated T‐43 rice.This article is protected by copyright. All rights reserved

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“… S. No Technologies for Conserving Water in Rice Cultivation Reference 1 Surface irrigation techniques in rice cultivation. [ 72 , 73 , 74 ] Drip irrigation methodology in rice cultivation. [ 70 ] Sprinkler irrigation approach for rice cultivation.…”

Section: Different Water Management Practices For Rice Cultivationmentioning

confidence: 99%

The Effects of Heavy Metal Pollution on Soil Nitrogen Transformation and Rice Volatile Organic Compounds under Different Water Management Practices

Afzal,

Muhammad,

Tan

et al. 2024

Plants

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One of the most concerning global environmental issues is the pollution of agricultural soils by heavy metals (HMs), especially cadmium, which not only affects human health through Cd-containing foods but also impacts the quality of rice. The soil’s nitrification and denitrification processes, coupled with the release of volatile organic compounds by plants, raise substantial concerns. In this review, we summarize the recent literature related to the deleterious effects of Cd on both soil processes related to the N cycle and rice quality, particularly aroma, in different water management practices. Under both continuous flooding (CF) and alternate wetting and drying (AWD) conditions, cadmium has been observed to reduce both the nitrification and denitrification processes. The adverse effects are more pronounced in alternate wetting and drying (AWD) as compared to continuous flooding (CF). Similarly, the alteration in rice aroma is more significant in AWD than in CF. The precise modulation of volatile organic compounds (VOCs) by Cd remains unclear based on the available literature. Nevertheless, HM accumulation is higher in AWD conditions compared to CF, leading to a detrimental impact on volatile organic compounds (VOCs). The literature concludes that AWD practices should be avoided in Cd-contaminated fields to decrease accumulation and maintain the quality of the rice. In the future, rhizospheric engineering and plant biotechnology can be used to decrease the transport of HMs from the soil to the plant’s edible parts.

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Optimizing the lateral dripline spacing of drip-irrigated aerobic rice to increase water productivity and profitability under the water-limited condition

Cited by 10 publications

References 30 publications

The layout measures of micro-sprinkler irrigation under plastic film regulate tomato soil bacterial community and root system

The layout measures of micro-sprinkler irrigation under plastic film regulate tomato soil bacterial community and root system

The effect of nitrogen and water management on the yield and endogenous hormone levels of drip‐irrigated rice

The Effects of Heavy Metal Pollution on Soil Nitrogen Transformation and Rice Volatile Organic Compounds under Different Water Management Practices

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