Effects of Organic Amendments on Soil Physical Attributes and Aggregate-Associated Phosphorus Under Long-Term Rice-Wheat Cropping

Mitran, Tarik; Mani, Pabitra Kumar; Bandyopadhyay, P.; Basak, Nirmalendu

doi:10.1016/s1002-0160(17)60423-5

Cited by 54 publications

(22 citation statements)

References 34 publications

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“…Similar results were reported by Wei et al ., who found a positive correlation between TP and AP 6 . The inverse proportion of AP content in the aggregate to the size of the aggregate and the TP in the soil in the present study confirmed the findings by Mitran et al ., 44 who showed higher AP content is associated with a smaller aggregate size fraction in a long‐term rice‐wheat experiment. Therefore, the large proportion of micro‐aggregates determines the effective adsorption capacity which is the key factor regulating the soil TP and AP content in aggregates.…”

Section: Discussionsupporting

confidence: 92%

Influence of tillage practices on phosphorus forms in aggregates of Mollisols from northeast China

Zhai

et al. 2021

J Sci Food Agric

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BACKGROUND Phosphorus (P) is an essential mineral nutrient for crop growth and development. Much remains unknown regarding the content and distribution of P forms in different soil aggregates as affected by tillage practices. A 3‐year field experiment was conducted to investigate the effects of no‐tillage (NT), rotary tillage (RT), subsoiling (SS), and deep tillage (DT) on soil aggregate distribution pattern, aggregate‐associated P content, and to understand the conversion trend. RESULTS Tillage has the potential to accelerate the processes in transforming macro‐aggregates (> 0.25 mm) into micro‐aggregates (< 0.25 mm). Greatest aggregate stability was attained under RT. Total phosphorus (TP) and available phosphorus (AP) under NT were increased by 21.1–82.0% in contrast to other tillage treatments. The NT had high content in inorganic phosphorus (IP), aluminum phosphorus (Al‐P), and iron phosphorus (Fe‐P) with 416.7, 107.9, and 99.1 mg·kg−1 on average, respectively. Aggregates with a size dimension of < 2 mm were more sensitive than other sizes of aggregates. IP was evenly distributed throughout all aggregates, ranging from 336.3 to 430.6 mg kg−1. No differences in organic phosphorus (OP) were found in all tillage treatments, while NT promoted the transformation of labile OP to IP. The AP and OP were generally more abundant in aggregates of 2 to 0.25 mm and < 0.25 mm. CONCLUSION Short‐term NT can improve soil structure and increase P reserves, thus, enhancing the conversion of P from being scarce to available. © 2021 Society of Chemical Industry

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Section: Discussionsupporting

confidence: 92%

Influence of tillage practices on phosphorus forms in aggregates of Mollisols from northeast China

Zhai

et al. 2021

J Sci Food Agric

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“…Conversely, organic fertilizer has been reported to enhance the soil biological activities, chemical, and physical properties, thus increase plant growth and yield [4,5]. The application of organic fertilizers sustains the cropping system through better nutrient recycling and has a significant beneficial effect on food production worldwide [6].…”

Section: Introductionmentioning

confidence: 99%

Organic cultivation practices enhanced antioxidant activities and secondary metabolites in giant granadilla (Passiflora quadrangularis L.)

et al. 2021

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Passiflora quadrangularis L. belongs to the family Passifloraceae which bears larger fruit with edible juicy mesocarp and pulp known as a good source of phytochemicals. Cultivation and plant management practices are known to influence the phytochemical compositions of agricultural produce. This study aimed to examine the influence of the cultivation practices on the antioxidant activities and secondary metabolites of the organically and conventionally grown P. quadrangularis. Findings revealed organically treated P. quadrangularis plants showed enhancement in their antioxidant properties and secondary metabolites profiles. Among the plant parts, leaves of P. quadrangularis grown organically possessed higher antioxidant activities compared to the conventional in all assays evaluated. The antioxidant activities in the edible parts of the P. quadrangularis fruit have also been enhanced through organic cultivation with significantly higher total phenolic content and DPPH in mesocarp, and the pulp showed higher total flavonoid content, DPPH and FRAP. This observation is supported by a higher level of vitamins and secondary metabolites in the samples. The secondary metabolites profile showed mesocarps were phenolic rich, the pulps were flavonoids rich while leaves showed good composition of phenolics, flavonoids and terpenoids with outstanding antioxidant activities. The common secondary metabolites for organically produced P. quadrangularis in different plant parts include 2-isopropyl-3-methoxycinnamic acid (mesocarp and pulp), myricetin isomers (pulp and leaves), and malvidin-3-O-arabinoside isomers (pulp and leaves). This study confirmed that organic cultivated P. quadrangularis possessed higher antioxidant activities contributed by its vitamins and secondary metabolites.

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“…Olsen’s P was the same in both rotations because of an external supply of fertilizer P and mineralization of organic P over time 35 , 36 . Tillage effect was apparent on Olsen’s P, and RT showed a higher values of Olsen’s P, which can be attributed to increased immobilization of P by soil microorganisms 37 in CT and ZT.…”

Section: Discussionmentioning

confidence: 99%

Deficit saline water irrigation under reduced tillage and residue mulch improves soil health in sorghum-wheat cropping system in semi-arid region

Soni

Basak

Kumar

et al. 2021

Sci Rep

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Judicious application of saline water except for critical growth stages, could be the only practical solution to meet the crop water demand in arid and semi-arid regions, due to limited access to freshwater, especially during dry winter months. A field experiment was conducted to study the effect of tillage [conventional (CT), reduced (RT), and zero (ZT)], rice straw mulch and deficit saline-water irrigation in wheat (100, 80 and 60% of wheat water requirement, CWR) followed by rainfed sorghum on soil properties and the yields of the cropping system. Yields of both the crops were comparable between RT and CT, but the wheat yield was reduced in ZT. The RT, mulching and deficit saline irrigation in wheat season (60% CWR) increased the sorghum fodder yield. Olsen’s P (8.7–20.6%) and NH4OAc-K (2.5–7.5%) increased in RT and ZT, respectively, over CT under both the crops. Deficit irrigation reduced soil salinity (ECe) by 0.73–1.19 dS m−1 after each crop cycle, while soil microbial biomass C (MBC) and N (MBN), dehydrogenase, urease and alkaline phosphatase reduced with an increase in ECe. The α-glucosidase, MBC, ECe, KMnO4oxidizable N, and urease were identified as major contributors in developing the soil health index. Deficit irrigation (60% CWR) and rice straw mulching under ZT and RT showed higher values of soil health index. Overall, deficit saline-water irrigation under reduced tillage and straw mulching had the greatest potential in maintaining soil health, saving fresh irrigation water without affecting the productivity of the sorghum-wheat system in the semi-arid regions of India. Results also demonstrated that salt affected areas of arid and semiarid countries can replicate the protocol for indexing and screening of soil health indicators to assess the sustainability of a cropping system. This integrated management based on the nature of the available resources also provided a practical approach to achieve the target of land degradation neutrality and land restoration.

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Effects of Organic Amendments on Soil Physical Attributes and Aggregate-Associated Phosphorus Under Long-Term Rice-Wheat Cropping

Cited by 54 publications

References 34 publications

Influence of tillage practices on phosphorus forms in aggregates of Mollisols from northeast China

Influence of tillage practices on phosphorus forms in aggregates of Mollisols from northeast China

Organic cultivation practices enhanced antioxidant activities and secondary metabolites in giant granadilla (Passiflora quadrangularis L.)

Deficit saline water irrigation under reduced tillage and residue mulch improves soil health in sorghum-wheat cropping system in semi-arid region

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