Yield and nitrogen use efficiency of rice-wheat cropping system in gypsum amended saline-sodic soil

Murtaza, Behzad; Murtaza, Ghulam; Imran, Muhammad; Amjad, Muhammad; Akhtar, Naeem; Shah, Ghulam Mustafa

doi:10.4067/s0718-95162017000300011

Cited by 19 publications

(14 citation statements)

References 16 publications

(17 reference statements)

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“…In calcareous soils, characterized by alkaline or sub-alkaline pH, the presence of calcium carbonate (CaCO 3 ) and bicarbonate (HCO 3 − ) is one of the main factors that induces nutritional deficiencies in plants, causing severe reductions in growth and productivity in vineyards (Covarrubias and Rombolà 2013;Cambrollé et al 2014;Murtaza et al 2017). In these soils, HCO 3 − concentrations may reach values over 15 mM.…”

Section: Introductionmentioning

confidence: 99%

Influence of Nitrogen on Physiological Responses to Bicarbonate in a Grapevine Rootstock

Molina

Covarrubias

2019

J Soil Sci Plant Nutr

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The presence of bicarbonate in soils is an important inducer of nutritional deficiencies in some grapevine genotypes. The aim of this experiment was to assess the effects of different nitrogen sources on physiological variables in the grapevine rootstock 110 Richter grown in a sub-alkaline media. Plants of the grapevine rootstock 110 Richter were treated with different nitrogen sources (NO 3 − , NH 4 + , or NH 4 NO 3) in a nutrient solution enriched with bicarbonate. Root enzyme (PEPC, MDH, CS, NADP +-IDH) activities, organic acid concentrations in roots, plant growth and leaf greenness, leaf gas exchange, and mineral concentrations in leaves were determined. The presence of NH 4 + promoted an enhancement in leaf greenness, and the treated plants did not trigger physiological response mechanisms to nutritional deficiencies in the roots. However, NH 4 + decreased the leaf K concentration. On the other hand, the presence of NO 3 − in the nutrient solution decreased the leaf greenness, and increased the organic acid concentration in the roots, indicating that these plants were affected by nutritional deficiencies. Instead, intermediate results were obtained in plants treated with NH 4 NO 3. Under the experimental conditions used in this experiment, treatments did not significantly influence the plant biomass, the activity of some enzymes related to organic acids biosynthesis, and the leaf gas exchange. These results suggest that the presence of NH 4 + can be an effective strategy to alleviate the negative effects on plant nutrition induced by bicarbonate in plants, an alternative to the soil acidification through inorganic acid applications to the soil.

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Section: Introductionmentioning

confidence: 99%

Influence of Nitrogen on Physiological Responses to Bicarbonate in a Grapevine Rootstock

Molina

Covarrubias

2019

J Soil Sci Plant Nutr

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“…Therefore, the application of amendments for soil improvement may contribute to nutrient use efficiency. Murtaza et al (2017) reported a significant variation in nitrogen use efficiency in saline-sodic soil in a rice-wheat cropping system. They found that the application of 100 kg N ha −1 with 50% soil gypsum requirement recorded the highest partial factor productivity; and that the application of 130 kg N ha −1 and 100% soil gypsum requirement had the highest agronomic use efficiency of nitrogen in both rice and wheat.…”

Section: Resource Use Efficiencymentioning

confidence: 99%

Soil Health and Its Improvement Through Novel Agronomic and Innovative Approaches

Shahane

Shivay

2021

Front. Agron.

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Soil is an important natural resource providing water, nutrient, and mechanical support for plant growth. In agroecosystem, continuous manipulation of soil is going on due to addition of input, removal of nutrients, changing water balance, and microbial life. These processes affect soil properties (physical, chemical, and biological), and the deviation of these properties from the normal status is controlled by soil buffering capacity and soil resilience. If these changes are beyond the reach of soil resilience, then soil loses its original state, leading to soil degradation. At present, the extent of the degraded area in the world is 1,036 to 1,470 million ha. This urges the need for maintaining soil health rather than the mere addition of input for crop production. Soil health is an integrative property that reflects the capacity of soil to respond to agricultural intervention, so that it continues to support both agricultural production and the provision of other ecosystem services. Maintaining the physical, chemical, and biological properties of soil is needed to keep it healthy, and this is possible through the adoption of different agronomic approaches. The diversification of nutrient sources with emphasis on organic sources, adoption of principles of conservation agriculture, enhancement of soil microbial diversity, efficient resource recycling through the integrated farming system, and amendment addition for correcting soil reactions are potential options for improving soil health, and are discussed in this review. This article reviewed the concept of soil health and its development, issues related to soil health, and indicators of healthy soil. At the same time, the impact of the ill health of the soil on crop productivity and resource use efficiency reported in different parts of the world in recent years are also reviewed. The agro-techniques such as green and brown manuring in arable land and agroforestry on degraded and marginal land were followed on piece meal basis and for economic gain. The potential of these and several other options for maintaining soil need to be recognized, evaluated, and quantified for their wider application on the front of soil health management avenues. The use of crop residue, agro-industrial waste, and untreated mineral or industrial waste (basic slag, phosphogypsum, etc.) as soil amendments has a huge potential in maintaining healthy soil along with serving as sources of crop nutrition. The review emphasizes the evaluation and quantification of present-day followed agro-techniques for their contribution to soil health improvement across agro-climatic regions and for wider implications. Furthermore, emphasis is given to innovative approaches for soil health management rather than mere application of manures and fertilizers for crop nutrition.

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“…Studies have shown that soil salinization is essentially soil degradation, which will increase soil bulk density and electrical conductivity, and reduce soil permeability and water retention capacity [6][7] . On this basis, in order to improve this bad property, the current improvement methods are generally accepted to add desulfurization gypsum, biomass charcoal and fly ash to the saline-alkali soil [8][9][10][11] . relies mainly on water conservancy measures to control the saline-alkali land, but because of its inland location, fresh water resources are scarce.…”

Section: Introductionmentioning

confidence: 99%

The Impacts of Freeze-thaw Cycles on Saturated Hydraulic Conductivity and Microstructure of Saline-alkali Soils

Chen

et al. 2021

Preprint

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Study on the microscopic structure of saline-alkali soil can reveal the change of its permeability more deeply. In this paper, the relationship between permeability and microstructure of saline-alkali soil with different dry densities and water content in the floodplain of southwestern Shandong Province was studied through freeze-thaw cycles. A comprehensive analysis of soil samples was conducted using particle-size distribution, X-Ray diffraction, Freeze-Thaw cycle test, saturated hydraulic conductivity test and mercury intrusion porosimetry. The poor microstructure of soil is the main factor that leads to the category of micro-permeable soil. The porosity of the local soil was only 6.19–11.51%, and ultra-micropores (< 0.05 µm) and micropores (0.05-2 µm) dominated the pore size distribution. Soil saturated water conductivity was closely related to its microscopic pore size distribution. As the F-T cycles progressed, soil permeability became stronger, with the reason the pore size distribution curve began to shift to the small pores (2–10 µm) and mesopores (10–20 µm), and this effect was the most severe when the freeze-thaw cycle was 15 times. High water content could promote the effects of freeze-thaw cycles on soil permeability and pore size distribution, while the increase of dry density could inhibit these effects. The results of this study provide a theoretical basis for the remediation of saline-alkali soil in the flooded area of Southwest Shandong.

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Yield and nitrogen use efficiency of rice-wheat cropping system in gypsum amended saline-sodic soil

Cited by 19 publications

References 16 publications

Influence of Nitrogen on Physiological Responses to Bicarbonate in a Grapevine Rootstock

Influence of Nitrogen on Physiological Responses to Bicarbonate in a Grapevine Rootstock

Soil Health and Its Improvement Through Novel Agronomic and Innovative Approaches

The Impacts of Freeze-thaw Cycles on Saturated Hydraulic Conductivity and Microstructure of Saline-alkali Soils

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