The difference of potassium dynamics between yellowish red soil and yellow cinnamon soil under rapeseed (Brassica napus L.)–rice (Oryza sativa L.) rotation

Li, Xiaokun; Lu, Jianwei; Wu, Le; Chen, Fang

doi:10.1007/s11104-008-9879-7

Cited by 26 publications

(15 citation statements)

References 39 publications

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“…Crop nutrient uptake and crop yields are the principal factors that determine optimal fertilization practices 20 . Therefore, it is very important to apply fertilizers in an efficient way to minimize loss and to improve the nutrient use efficiency 21 . To the best of our knowledge, previous studies on fertilization responses were rarely conducted on rice and oilseed rape crops individually, and no one has reported fertilization responses in the rice-oilseed rape rotation, particularly in China.…”

Section: Introductionmentioning

confidence: 99%

Effects of fertilization on crop production and nutrient-supplying capacity under rice-oilseed rape rotation system

Yousaf

Lü

et al. 2017

Sci Rep

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191

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Incredible accomplishments have been achieved in agricultural production in China, but many demanding challenges for ensuring food security and environmental sustainability remain. Field experiments were conducted from 2011–2013 at three different sites, including Honghu, Shayang, and Jingzhou in China, to determine the effects of fertilization on enhancing crop productivity and indigenous nutrient-supplying capacity (INuS) in a rice (Oryza sativa L.)-rapeseed (Brassica napus L.) rotation. Four mineral fertilizer treatments (NPK, NP, NK and PK) were applied in a randomized complete block design with three replicates. Crop yields were increased by 19–41% (rice) and 61–76% (rapeseed) during the two years of rice-rapeseed rotation under NPK fertilization compared to PK fertilization across the study sites. Yield responses to fertilization were ranked NPK > NP > NK > PK, illustrating that N deficiency was the most limiting condition in a rice-rapeseed rotation, followed by P and K deficiencies. The highest and lowest N, P and K accumulations were observed under NPK and PK fertilization, respectively. The INuS of the soil decreased to a significant extent and affected rice-rapeseed rotation productivity at each site under NP, NK, and PK fertilization when compared to NPK. Based on the study results, a balanced nutrient application using NPK fertilization is a key management strategy for enhancing rice-rapeseed productivity and environmental safety.

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Section: Introductionmentioning

confidence: 99%

Effects of fertilization on crop production and nutrient-supplying capacity under rice-oilseed rape rotation system

Yousaf

Lü

et al. 2017

Sci Rep

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191

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“…However, the applicability of previous nutrient‐release experimental results is limited because biochar was not mixed with soil (and microbes). Apart from the release process, the efficiency of added K and crop responses depend on the dynamic equilibrium of soil K, which could be influenced by various soil properties, including soil type, texture, original K‐supplying capacity, and dominant clay minerals ( Li et al, ). The function of biochar remains largely unknown in terms of soil K dynamics.…”

Section: Introductionmentioning

confidence: 99%

Effects of biochar application on soil potassium dynamics and crop uptake

Wang

Xue

Nie

et al. 2018

J. Plant Nutr. Soil Sci.

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Biochar has been suggested as a possible means for enhancing soil fertility, including soil potassium (K). However, understanding of the effects of biochar on soil K dynamics remains limited. In this study, a pot trial was conducted to investigate the influence of biochar application (0, 5, 10, and 25 g kg−1 soil) on soil K dynamics and crop K uptake under a winter wheat–maize rotation in two types of soil (an Alfisol, which contained a high initial available K and an Entisol, which contained a high abundance of 2 : 1 K‐bearing minerals). Changes in soil K in various forms following biochar application and cropping were determined, and their contributions to plant K uptake were evaluated. Soil microbial activity, especially the development of K‐dissolving bacteria (KDB), was evaluated to obtain insights into its effects on the weathering of K‐bearing minerals in the soils. During the wheat growth period, crop K uptake was more enhanced (13.6–40.5% higher) in the Alfisol than in the Entisol due to the higher availability of water‐soluble and exchangeable K, while K fixation occurred in the Entisol because of the higher content of 2 : 1 K‐bearing minerals. During the maize period, crop K uptake was generally higher in the Entisol soil due to the release of non‐exchangeable K. In addition, biochar application enhanced the growth of KDB in both soils, which was associated with changes in soil pH and water‐soluble K. However, improved mineral K release was observed only in the Entisol. It is concluded that biochar application could be a feasible soil amendment to improve soil K availability, but crop K uptake responses may vary depending on soil types. Soils abundant in 2 : 1 K‐bearing minerals tend to prolong biochar effects on crop K uptake. Biochar application enhanced the growth of KDB, which may facilitate mineral K weathering in soils with abundant K‐bearing minerals.

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“…Biotite has abundant K, which is one of the three most essential nutrients for plants (Ren et al, 2013;Samal et al, 2010;Steingrobe and Claassen, 2000). Where K deficiency is common, such as in China, India, Sri Lanka and regions of Southeast Asia (Li et al, 2009;Pathak et al, 2009), biotite breakdown is very important for improving available K in soils (Manning, 2010 Previous studies suggest that mica dissolution rates vary as a function of pH much as they did in other aluminosilicates. Dissolution rates decrease with increasing pH under acid conditions, and are minimal at near neutral pH, while they increase as pH reaches alkaline values (Maslova et al, 2005;Oelkers et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Effects of citrate on the dissolution and transformation of biotite, analyzed by chemical and atomic force microscopy

Li¹,

Zhang²,

Li³

et al. 2014

Applied Geochemistry

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The difference of potassium dynamics between yellowish red soil and yellow cinnamon soil under rapeseed (Brassica napus L.)–rice (Oryza sativa L.) rotation

Cited by 26 publications

References 39 publications

Effects of fertilization on crop production and nutrient-supplying capacity under rice-oilseed rape rotation system

Effects of fertilization on crop production and nutrient-supplying capacity under rice-oilseed rape rotation system

Effects of biochar application on soil potassium dynamics and crop uptake

Effects of citrate on the dissolution and transformation of biotite, analyzed by chemical and atomic force microscopy

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