Fifteen years of crop rotation combined with straw management alters the nitrogen supply capacity of upland-paddy soil

Liu, Shaowen; Wang, Mengjia; Yin, Min; Chu, Guang; Xu, Chunmei; Zhang, Xiufu; Abliz, Buhailiqem; Tang, Caixian; Wang, Danying; Song, Chen

doi:10.1016/j.still.2021.105219

Cited by 31 publications

(11 citation statements)

References 72 publications

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“…In general, our research showed that covering the soil surface with straw could release nutrients to the soil during the decomposition process, which improved crop yields. Compared with other straw mulching experiments in which the improvement effects of soil nutrient were always observed after several years of mulching [46], the significant increase of P and K occurred in the current season in our study. In addition, some studies have shown that straw is rich in carbon and that large amounts of CO 2 would be released during decomposition, which could increase the CO 2 concentrations and photosynthesis in the field and promote plant growth during mulching.…”

Section: Discussioncontrasting

confidence: 72%

Taro (Colocasia esculenta (L.) Schott) Yields and Soil Chemical Properties Were Improved by Row-Surface Straw Mulching

et al. 2022

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The rational use of a large amount of straw produced from grain fields is an important issue in major grain-producing areas. On the other hand, due to the long-term preferential applications of chemical fertilizers, soil organic carbon (SOC) content, soil fertility and organic matter levels have decreased, and the soil physical-chemical properties have deteriorated in protected agricultural facilities. In this study, a wet crop, taro (Colocasia esculenta (L.) Schott) and the straw of two main crops [wheat (Triticum aestivum L.) and rice (Oryza sativa L.)] were selected to investigate the effect of row-surface straw mulching on taro yields and soil chemical properties. The results showed that nearly all wheat straw and 74% of rice straw decomposed in one season under wet conditions. Straw mulching significantly increased the taro yield, increased the levels of SOC, soil rapid available nitrogen, phosphorus and potassium, and improved the activities of sucrase and phosphatase in the soil. We conclude that row-surface straw mulching t of wet crops could not only improve the soil properties and crop yields in the protected facility but could also consume considerable straw (wheat: 14,250 kg/ha, rice: 111,00 kg/ha), and the method applied in other areas with similar conditions.

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Section: Discussioncontrasting

confidence: 72%

Taro (Colocasia esculenta (L.) Schott) Yields and Soil Chemical Properties Were Improved by Row-Surface Straw Mulching

et al. 2022

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“…The stocks of soil C and N largely depend on the amount and quality of crop straw 16 , which is the main source of exogenous C and N 17 . A large amount of crop straw return can not only provide ample C and N in soil but also stimulate the mineralization of existing soil organic matter (SOM) through the "priming effect" 18,19 , promoting soil microbial activity and diversity and even ecosystem stability 20 . Both Sainju et al 2 and Alves et al 21 found that soil C and N could be increased by the return of crop residues.…”

Section: Discussionmentioning

confidence: 99%

Long-term upland-paddy rotation effect on the soil C and N stocks in the middle and lower reaches of the Yangtze River

Wang

Feng

et al. 2022

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Observations of the effects of long-term paddy-upland rotations on soil carbon (C) and nitrogen (N) stocks are scarce. This experiment used four paddy-upland rotation systems with summer rice as the main crop: rice-winter fallow (RF), rice-potato with rice straw mulch and return (RP), rice-wheat (RW), and rice-Chinese milk vetch (RC) with the return of winter crop residues (from 2003 to the present) to examine the soil C and N stock characteristics in the 0–50 cm soil layer. The results showed that in the topsoil at 50 cm, compared to RF, both RP and RC increased the soil organic carbon (SOC) stock by 19.67% and 15.29%, the total nitrogen (TN) stock by 20.40% and 18.54%, and the available nitrogen (AN) density by 61.54% and 34.44%, respectively; in particular, the increases in the TN and AN at 20–30 cm were likely to increase the rice yield. RW increased only the AN density by 30.24% compared with RF. Furthermore, the highest SOC, TN, and AN densities were all observed in RP. Except for TN at 30–40 cm, the densities of SOC, TN, and AN in RP were slightly greater than those in the other treatments due to the high C and N concentrations at 0–40 cm; thus rice-potato with rice straw mulch was the best choice for increasing soil C and N accumulation and improving rice yield. In addition, SOC, TN, and AN had obvious stratification and surface aggregation characteristics at 0–50 cm, and 72.17%–83.37% of the total SOC stock, 75.70%–80.48% of the total TN stock and 75.69%–81.08% of the total AN density were concentrated in the top 30 cm. However, the characteristics were dependent on the residues.

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“…The results of this study have shown that an alfalfa-corn rotation pattern increased the content and storage of organic carbon, inorganic carbon, and total nitrogen in all studied topsoil (0-20 cm) macro-aggregates. This may be due to a crop rotation pattern facilitating the continuous change of crops, which increased the biodiversity of the soil's surface layer 64 . The continuous refreshment of enzymes and microorganisms in a soil promotes organic matter enrichment and the formation of small particles of organic matter inside macro-aggregates, thus increasing the stability of the soil aggregates.…”

Section: Effect Of Crop Rotation and Crop Succession On Carbon Conten...mentioning

confidence: 99%

Effects of cropping patterns on the distribution, carbon contents, and nitrogen contents of aeolian sand–soil aggregates in Northwest China

Niu

et al. 2023

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The long-term physicochemical responses of aeolian sandy soil aggregates to different crop rotation patterns are poorly understood. Here, we collected soil samples from the 0–20 cm tillage layer of continuous maize crop and alfalfa–corn rotation plots situated on the edge of the Zhangye Oasis, Northwest China. These samples were analyzed to quantify the influence that both cropping patterns have on the structure, carbon content, and nitrogen content of native aeolian sandy soils. When compared with long-term continuous maize cropping, planting using a maize–alfalfa rotation system significantly increased the mass fraction of macro-aggregates with sizes of >2 mm and 0.25–2 mm from 8.74 % to 12.08 % and 19.1 % to 21.21 %, respectively, but decreased the mass fraction of micro-aggregates (0.053–0.25 mm) from 11.57 % to 8.09 %. Further, there was no significant difference in the content of silt and clay particles between each system. The maize–alfalfa rotation increased the stability of aggregates from 0.32 to 0.37, representing an increase of 15.61 %. Soil organic carbon, inorganic carbon, and total nitrogen were mainly enriched in macro-aggregates with sizes of >2 mm, and silt and clay fractions for both cropping patterns. Implementation of a rotation pattern increased organic carbon contents by 27.21 %, 25.62 %, 26.67 %, and 27.58 %, inorganic carbon contents by 14.40 %, 4.53 %, 53.33 %, and 20.95 %, and total nitrogen contents by 14.40 %, 4.53 %, 53.33 %, and 20.95 % in aggregate particle sizes of >2 mm, 0.25–2 mm, 0.053–0.25 mm, and <0.053 mm, respectively, when compared to continuous corn cropping. Total nitrogen content increased by 29.72 %, 7.02 %, 4.17 %, and 50.00 %, respectively, for these particle size ranges. Maize–alfalfa crop rotation can therefore effectively improve soil aggregate composition and aggregate stability, alongside organic carbon content, inorganic carbon content, total nitrogen content, and their storage capacity. This system thus represents a soil cultivation technique that can increase the soil carbon sequestration capacity in the oasis zone of Northwest China.

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Fifteen years of crop rotation combined with straw management alters the nitrogen supply capacity of upland-paddy soil

Cited by 31 publications

References 72 publications

Taro (Colocasia esculenta (L.) Schott) Yields and Soil Chemical Properties Were Improved by Row-Surface Straw Mulching

Taro (Colocasia esculenta (L.) Schott) Yields and Soil Chemical Properties Were Improved by Row-Surface Straw Mulching

Long-term upland-paddy rotation effect on the soil C and N stocks in the middle and lower reaches of the Yangtze River

Effects of cropping patterns on the distribution, carbon contents, and nitrogen contents of aeolian sand–soil aggregates in Northwest China

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