Sustainable strategies related to soil fertility, economic benefit, and environmental impact on pear orchards at the farmer scale in the Yangtze River Basin, China

Fu, Haoran; Ma, Zhiyao; Wang, Xiangjie; Chen, Kaijun; Han, Kefeng; Ma, Qiang; Wu, Lianghuan

doi:10.1007/s11356-022-23319-8

Cited by 2 publications

(4 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For C:Nim, nutrition management, soil type, soil properties, and microbial indices each explained $4%, 1%, 8%, and 16%, respectively (Figure 5a). The average SOC across all samples was 19.3 g/kg, which is similar to that reported for pear orchards in Japan and higher than that in the north-eastern region of China (18.2 g/kg) (Table S2) (Fu et al, 2023). Moreover, the TN and TP in our research area were higher than those of global cropland soil and China, which may be related to large fertilizer inputs.…”

Section: Effects Of Nutrition Management and Soil Type On Stoichiomet...supporting

confidence: 82%

“…N fertilizer input typically coincides with P fertilizer; hence, soil TN and TP are higher than other variables, resulting in lower soil stoichiometry (C:N and C:P). Indeed, the chemical fertilizer application rate in cash crops is typically several‐fold higher than that in grain crops, and organic fertilizers are rarely employed when aiming to achieve high economic output (Fu et al, 2023; Wei et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

“…In actual practice, to achieve a high crop yield, the application rates of chemical fertilizer have increased by >3.5‐fold, causing markedly wider and variable resource stoichiometry than those required by microbes (Tilman et al, 2002; Wei et al, 2019; Zhu et al, 2018). Moreover, organic manure has been used to improve soil quality in cash crop production, which can provide extra carbon and various other nutrients (Fu et al, 2023; Ma et al, 2016; Tang et al, 2023). Meanwhile, increasing manure input can increase the soil's microbial biomass (Chang et al, 2007; Kallenbach & Grandy, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…are widely cultivated, with a 1.0 million ha planting area in China (FAO, 2019). The Yangtze River Basin, one of the five major pear‐planting regions in China, produces more than 80% of Chinese early‐ripening pears (Fu et al, 2023). In this region, the fertilizer application rate by smallholders corresponds with the high input common throughout intensive fruit production in China (Anna et al, 2020; Fu et al, 2023; Wang et al, 2021; Yin et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Effect of nutrient management and soil type on stoichiometric imbalances across the Yangtze River Basin pear districts, China

Fu,

Chen,

et al. 2023

Land Degrad Dev

Self Cite

View full text Add to dashboard Cite

Nutrition management affects soil carbon (C), nitrogen (N), and phosphorus (P) cycles, as well as their stoichiometry, causing further stoichiometric imbalances. However, research on the effect of nutrient management on soil stoichiometric imbalance is restricted to a single soil type, limiting our understanding of the interactions between these parameters. Therefore, we conducted a study comprising 212 sites throughout the Yangtze River Basin pear districts, for which nutrient management and soil properties were available under different soil types. Soil stoichiometric imbalances varied widely among the districts, with an average C:P imbalance value (C:Pim) of 6.67, higher than that of C:N imbalance (C:Nim; 6.43) and N:P imbalance (N:Pim; 2.83). Meanwhile, soil and microbial biomass stoichiometry, particularly for soil C:P and soil microbial biomass carbon and phosphorus (MBC:MBP), were significantly influenced by nutrient addition. Large N and P fertilizer inputs altered soil C:N and C:P in yellow–brown earth, while soil C:P was influenced by organic nutrient management in purplish soil. Moreover, adding organic nutrients altered the MBP, which further influenced MBC:MBP and MBN:MBP in saline–alkaline soil and yellow–brown earth. Furthermore, C:Pim increased with increasing organic nutrient input in purple soil and decreased with a large chemical fertilizer input in red soil. N:Pim and C:Nim were weakly associated with nutrient management in different soil types. In addition, nutrition management, soil type, soil properties, and microbe content collectively accounted for 45%, 32%, and 38% of the C:Pim, C:Nim, and N:Pim variation, respectively. Nutrient management also exerted a positive direct impact on C:Pim, while soil type elicited a negative direct impact on C:Nim and N:Pim. Meanwhile, all three stoichiometric imbalances were indirectly influenced by soil type. Taken together, our results indicate that soil stoichiometric imbalances, especially for C:Pim, are sensitive to nutrient management and soil type, providing novel insights into these imbalances that can inform the development of potential remedial strategies.

show abstract

Section: Effects Of Nutrition Management and Soil Type On Stoichiomet...supporting

confidence: 82%

Section: Discussionmentioning

confidence: 99%