A Field Study on Effects of Nitrogen Fertilization Modes on Nutrient Uptake, Crop Yield and Soil Biological Properties in Rice-Wheat Rotation System

Guan, Guan; Tu, Shuxin; Yang, Juncheng; Zhang, Jianfeng; Yang, Li

doi:10.1016/s1671-2927(11)60117-x

Cited by 28 publications

(16 citation statements)

References 28 publications

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“…2e; Table 2). Similar results were also obtained by Saiya-Cork et al and Guan et al [37,38]. Saiya-Cork et al [37] observed an increase in urease activity that suggested the potential for an increase in gross N mineralization rates during a study conducted in a sugar maple-dominated forest with simulated N (30 kg N ha −1 •yr −1 ) deposition in northern Michigan, USA in the 1998-2000 growing seasons [37].…”

Section: Soil Characteristicssupporting

confidence: 78%

Interaction of Biochar Amendment and Nitrogen Deposition on Soil Microbial Biomass Carbon and Enzyme Activity in a Torreya grandis Orchard

Chai¹,

Lv²,

Quan³

et al. 2019

Pol. J. Environ. Stud.

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In recent decades, nitrogen (N) deposition has rapidly increased owing to increases in the burning of fossil fuel and the utilization of fertilizers in agriculture [1]. This phenomenon has strongly impacted subtropical China, which has incurred a maximum annual N deposition rate of 63.53 kg N ha −1 •yr −1 and is predicted to become the region with the highest N deposition in the world by 2030 [2]. Soil microbial biomass plays a critical role in soil fertility, and microbial biomass carbon (MBC) can be effectively used as an index to evaluate soil quality [3]. Some studies have found that N input significantly decreases MBC

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Section: Soil Characteristicssupporting

confidence: 78%

Interaction of Biochar Amendment and Nitrogen Deposition on Soil Microbial Biomass Carbon and Enzyme Activity in a Torreya grandis Orchard

Chai¹,

Lv²,

Quan³

et al. 2019

Pol. J. Environ. Stud.

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“…Given its importance in the south central area, it should be noted that wheat usually generates benefits to the mean profitability of rotations. Studies of wheat-rice rotations by Guan et al (2011) and dryland rotations in the Biobío Region, Chile, show this (González et al 2002a). Selecting an appropriate crop rotation will produce more economically and productively sustainable agricultural systems by reducing the inadequate performance of some crops and expressing the potential of other crops included in the rotation (Nemecek et al, 2008).…”

Section: Introductionmentioning

confidence: 96%

Economic evaluation of a crop rotation portfolio for irrigated farms in central Chile

Undurraga

Hirzel

et al. 2013

Chilean J. Agric. Res.

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The sustainable use of productive resources by agricultural producers in the central valley of Chile should be compatible with economic results so that producers can select an appropriate rotation or succession of annual crops and pasture. The objective of this work was to evaluate the economic behavior of four food crop and supplementary forage rotations using indicators of profitability and profit variability. Productive data were used from a long-term experiment (16 yr) in the central valley of Chile under conditions of irrigation. With productive data and information on historic input/output prices, the real net margin per rotation (RNMR) and its coefficient of variation (CV) were determined. The results indicated that the highest economic benefits and greatest economic stability were obtained with rotations that only included crops, namely sugar beet (Beta vulgaris L. subsp. vulgaris)-wheat (Triticum aestivum L.)-bean (Phaseolus vulgaris L.)-barley (Hordeum vulgare L.) (CR2) and corn (Zea mays L.)-wheat-bean-barley (CR4). These rotations included crops with low CV of the net margin, such as wheat, barley and beans, with values between 0.31 and 0.34. The rotations with crops and pasture, sugar beet-wheat-red clover (Trifolium pratense L.) (2) (CR1) and corn-wheat-red clover (2) (CR3) had lower net margins and more variability of this indicator. Red clover had the highest CV value (1.00). The selection of crops for rotations and their sequence were determining factors in the economic behavior of rotations, affecting the level of RNMR and the degree of inter-annual variability of this indicator. Thus, differences among rotations of 47% in net margin were determined (CR2 vs. CR1), which only differed in the replacement of pasture with red clover (2) by bean-barley. The economic analysis based on the net margin and its variability allow for discriminating among rotations, providing valuable information for producers in deciding which crops to use in rotations.

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“…Efficient N fertilizer management is crucial for ensuring maximum economic production and improving N recovery efficiency (Guan et al, 2011;Zhang et al, 2013). To increase root yield of the radish, excessive N fertilizers are applied in the radish production system in southern China.…”

mentioning

confidence: 99%

Effect of N Management on Root Yield and N Uptake of Radishes in Southern China

Weiling

Yuan

Deng

et al. 2015

horts

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Efficient nitrogen (N) fertilizer management is crucial for ensuring the maximum economic yield and reducing the risk of environmental pollution. The objective of this study was to determine the effect of N fertilizer management on root yield and N uptake of radish in southern China by using 15N isotope tracing. A 2-year field experiment was conducted with three N rates (0, 60, and 120 kg N/ha) and two different application proportions, viz, A [50% at basal, 20% at 15 days after seeding (DAS), 30% at 30 DAS] and B (30% at basal, 20% at 15 DAS, 50% at 30 DAS) for each N rate, which were expressed as N0, N60A, N60B, N120A, and N120B, respectively. The results showed that root yields were significantly increased with N rates increasing from 0 to 120 kg N/ha. The root yields for N120A and N120B were 67.60 t·ha−1 and 72.50 t·ha−1 at harvest, 64.07% and 66.67% higher than those for the treatments of N60A and N60B, respectively. Mean radish recovery of N fertilizer ranged from 25.90% at N120A to 32.60% at N60B, and N fertilizer residual rate in the soil ranged from 11.50% at N120A to 14.90% at N60B. About 17.50% to 35.70% of total uptake of 15N derived from basal fertilizer was absorbed at seeding stage. However, 61.87% to 80.18% of total uptake of 15N derived from topdressing fertilizer absorbed at root expanding stage. Therefore, appropriate nitrogen application with increasing topdressing nitrogen amount could increase root yield of radish and the nitrogen recovery efficiency. Nitrogen fertilizer application recommended was 120 kg N/ha with 30% for basal, 20% for 15 DAS and 50% for 30 DAS in this study.

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A Field Study on Effects of Nitrogen Fertilization Modes on Nutrient Uptake, Crop Yield and Soil Biological Properties in Rice-Wheat Rotation System

Cited by 28 publications

References 28 publications

Interaction of Biochar Amendment and Nitrogen Deposition on Soil Microbial Biomass Carbon and Enzyme Activity in a Torreya grandis Orchard

Interaction of Biochar Amendment and Nitrogen Deposition on Soil Microbial Biomass Carbon and Enzyme Activity in a Torreya grandis Orchard

Economic evaluation of a crop rotation portfolio for irrigated farms in central Chile

Effect of N Management on Root Yield and N Uptake of Radishes in Southern China

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