Nonexchangeable Potassium Displacement in Relation to Potassium Availability to Rainfed Maize under Nitrogen Fertilization

Sharma, Anil Kumar; Arora, Sanjay; Jalali, V. K.; Verma, V. S.; Singh, Bhavana

doi:10.1080/00103624.2012.693236

Cited by 5 publications

(2 citation statements)

References 10 publications

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“…However, researchers have found that many crops had no response to added K in some soils, a possible result of the progressive release of K from the nonexchangeable fraction in the soils (Niebes et al 1993;Sharma et al 2012). It may also be attributed to K fixation.…”

Section: Introductionmentioning

confidence: 91%

Potassium Fixation and Release Characteristics of Several Normal and K-Exhausted Soils in the Middle and Lower Reaches of the Yangtse River, China

Zhan

Lü

et al. 2014

Communications in Soil Science and Plant Analysis

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Potassium (K) fixation and release in soil are important factors affecting K availability to plants and the utilization efficiency of K fertilizer. Three typical soils (red soil, yellow cinnamon soil, and alluvial soil) were collected from the middle and lower reaches of Yangtse River, China, to study the K-fixation and K-release characteristics of the normal and K-exhausted soil. Results showed that K fixation of added K in K-exhausted soils were significantly (P < 0.05) greater than that of the normal soils. There were significantly (P < 0.05) negative correlations among K-fixation capacity, concentration of soil-available K, and K + saturation. Irrespective of soil K exhaustion, K fixation of added K was in the order of red soil > yellow cinnamon soil > alluvial soil, but the cumulative amount of K released from the three soils during successive extractions with 1.0 mol L −1 nitric acid (HNO 3 ) was in the opposite order. The cumulative amounts of K released with 1.0 mol L −1 ammonium acetate (NH 4 OAc) and 1.0 mol L −1 HNO 3 extraction increased with the increasing numbers of extractions. The K-releasing power of soil by successive extraction decreased gradually and finally became almost constant. The release of K was lower in K-exhausted soil than in normal soil. Overall, the information obtained in this study will be helpful in formulating more precise K fertilizer recommendations for certain soils.

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Section: Introductionmentioning

confidence: 91%

Potassium Fixation and Release Characteristics of Several Normal and K-Exhausted Soils in the Middle and Lower Reaches of the Yangtse River, China

Zhan

Lü

et al. 2014

Communications in Soil Science and Plant Analysis

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“…The illitic nature of saffron growing soils could be attributed to micaceous parent material of these soils 47 . Further a linear but negative relationship of illite with nitrate N leaching was noticed.…”

Section: Discussionmentioning

confidence: 99%

Plummeting anthropogenic environmental degradation by amending nutrient-N input method in saffron growing soils of north-west Himalayas

Sharma

Kumar

Khan³

et al. 2021

Sci Rep

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Nitrous-oxide emission and nitrate addition from agriculture to earth’s environment are two main agriculture related anthropogenic causes of environmental degradation that needs greater attention. For addressing the aforesaid issue, new techniques/practices need to be developed and implemented. The present investigation, which was focused on this issue, resulted in developing a new mode of nitrogen (N) placement, i.e. ‘mid rib placement upper to corms in two splits (MRPU-2S)’, that could reduce nitrous oxide N emission by around 70.11% and, nitrate N leaching and runoff by around 68.26 and 67.09%, respectively, over conventional method, in saffron growing soils of northwest Himalayas. Besides plummeting environmental degradation, MRPU-2S further resulted in enhancing saffron yield by 33.33% over conventional method. The findings of the present investigation were used to develop new empirical models for predicting saffron yield, nitrate N leaching and nitrous-oxide N emission. The threshold limits of nitrate N leaching and nitrous oxide N emission have also been reported exclusively in the present study.

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Identification, management and pecuniary impact of major carbon footprint contributor in potato production system of north-west India

Kumar,

Sharma,

Sharma

et al. 2024

Heliyon

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Nonexchangeable Potassium Displacement in Relation to Potassium Availability to Rainfed Maize under Nitrogen Fertilization

Cited by 5 publications

References 10 publications

Potassium Fixation and Release Characteristics of Several Normal and K-Exhausted Soils in the Middle and Lower Reaches of the Yangtse River, China

Potassium Fixation and Release Characteristics of Several Normal and K-Exhausted Soils in the Middle and Lower Reaches of the Yangtse River, China

Plummeting anthropogenic environmental degradation by amending nutrient-N input method in saffron growing soils of north-west Himalayas

Identification, management and pecuniary impact of major carbon footprint contributor in potato production system of north-west India

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