Manure combined with chemical fertilizer increases rice productivity by improving soil health, post-anthesis biomass yield, and nitrogen metabolism

Iqbal, Anas; He, Lili; Ali, Izhar; Ullah, Saif; Khan, Amir Zaman; Khan, Aziz; Akhtar, Kashif; Wei, Shangqin; Zhao, Qian; Zhang, Jing

doi:10.1371/journal.pone.0238934

Cited by 91 publications

(71 citation statements)

References 63 publications

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“…The results of this study suggest that FYM alone can achieve significant improvement in yield traits compared to the control, thus reducing reliance on inorganic fertilizers, which is in agreement with [22]. [23] also found that a combination of cattle manure and chemical fertilizer had the potential to sustainably provide nutrients for an increase in rice yield and enhance soil health.…”

Section: Effect Of Fertilizer Treatment On Plant Morphologysupporting

confidence: 77%

Response of Paddy Rice (Oryza sativa L.) Morphological Characteristics to Nitrogen Fertilizers in Taveta, Kenya

Chawana¹,

Gacheru²,

Maghenda³

et al. 2021

IJPSS

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This study investigated the effect of applying nitrogenous fertilizers on the morphological traits in six paddy rice varieties in Taveta, Kenya. The six paddy rice varieties, including local control, were tested during the 2018 and 2019 seasons. The experiments were laid out in a split-plot design with three replications. The main plot was the fertilizer treatment while the subplot was the varieties tested including NIBAM-11, K2-9, MWIR-2, R-1081, Silewa, and a local control Saro. The fertilizer treatments were no fertilizer, farm yard manure (FYM) alone, FYM+Urea fertilizer, and FYM+CAN fertilizer. Significant differences (P < 0.05) among varieties were observed for all the morphological traits that were assessed. Silewa was the tallest plant (111 cm), had the highest number of grains per panicle (163), and also the highest 1000-grain weight (29.2 g). Fertilizer treatments had significant effects on plant height, leaf length, number of tillers, panicle length, and number of grains per panicle. FYM+Urea resulted in the highest number of grains per panicle while FYM alone resulted in the highest 1000- grain weight (25.56 g). Varieties significantly interacted with fertilizers for the number of grains per panicle. Leaf length had significant direct association with 1000-grain weight (r = 0.427) and grains per panicle (r = 0.874). It can be recommended that there is an opportunity to use farm yard manure alone or in combination with an inorganic fertilizer to improve yield traits while reducing dependence on inorganic fertilizers.

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Section: Effect Of Fertilizer Treatment On Plant Morphologysupporting

confidence: 77%

Response of Paddy Rice (Oryza sativa L.) Morphological Characteristics to Nitrogen Fertilizers in Taveta, Kenya

Chawana¹,

Gacheru²,

Maghenda³

et al. 2021

IJPSS

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“…Organic manure derived from animal waste holds great promise, for maintaining soil health and fertility, protecting soil biodiversity, and improving crop production; organic fertilizers have a clear advantage over CFs in many aspects 13 – 15 . Organic fertilizer has greater organic matter and richer nutrient contents; it improves soil physicochemical and biological properties primarily by enhancing soil structure and reducing soil bulk density 16 – 18 .…”

Section: Introductionmentioning

confidence: 99%

Co-incorporation of manure and inorganic fertilizer improves leaf physiological traits, rice production and soil functionality in a paddy field

Iqbal

Ali

et al. 2021

Sci Rep

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The combined use of organic manure and chemical fertilizer (CF) is considered to be a good method for sustaining high crop yields and improving soil quality. We performed a field experiment in 2019 at the research station of Guanxi University, to investigate the effects of cattle manure (CM) and poultry manure (PM) combined with CF on soil physical and biochemical properties, rice dry matter (DM) and nitrogen (N) accumulation and grain yield. We also evaluated differences in pre-and post-anthesis DM and N accumulation and their contributions to grain yield. The experiment consisted of six treatments: no N fertilizer (T1), 100% CF (T2), 60% CM + 40% CF (T3), 30% CM + 70% CF (T4), 60% PM + 40% CF (T5), and 30% PM + 70% CF (T6). All CF and organic manure treatments provided a total N of 150 kg ha−1. Results showed that the treatment T6 increased leaf net photosynthetic rate (Pn) by 11% and 13%, chlorophyll content by 13% and 15%, total biomass by 9% and 11% and grain yield by 11% and 17% in the early and late season, respectively, compared with T2. Similarly, the integrated manure and CF treatments improved post-antheis DM accumulation and soil properties, such as bulk density, organic carbon, total N, microbial biomass carbon (MBC) and microbial biomass nitrogen (MBN) relative to the CF-only treatments. Interestingly, increases in post-anthesis DM and N accumulation were further supported by enhanced leaf Pn and activity of N-metabolizing enzyme during the grain-filling period. Improvement in Pn and N-metabolizing enzyme activity were due to mainly improved soil quality in the combined manure and synthetic fertilizer treatments. Redundancy analysis (RDA) showed a strong relationship between grain yield and soil properties, and a stronger relationship was noted with soil MBC and MBN. Conclusively, a combination of 30% N from PM or CM with 70% N from CF is a promising option for improving soil quality and rice yield.

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“…However, the implementation of these approaches has limitations because they are labor-intensive and lack of advanced technology (Anadon et al 2016). In contrast to traditional synthetic N fertilization, organic fertilizers are considered effective and environmentally friendly alternative fertilizers to improve crop productivity and soil health (Iqbal et al, 2019;Iqbal., 2020a;Nkoa 2014). Seaweed extract (SE) is a bio-organic fertilizer derived from large algae in the ocean (Ullah et al 2008).…”

Section: Accepted Papermentioning

confidence: 99%

Synthetic nitrogen coupled with seaweed extract and microbial inoculants improves rice (<em>Oryza sativa</em> L.) production under a dual cropping system

Xie

Iqbal

et al. 2021

Ital J Agronomy

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The over-reliance on synthetic nitrogen (N) in current farming is a major concern because of its adverse effects on soil quality, the environment, and crop production. Organic fertilizers such as seaweed extract (SE) and microbial inoculants (MI) provide alternatives to chemical fertilizers that could decrease the amount of synthetic N needing to be applied and improve crop growth productivity. This study evaluated the combined effect of SE and MI with reduced N rates on the growth, biomass accumulation, yield, and yield components of an N-efficient rice cultivar (Baixiang 139-A) and N-inefficient rice cultivar (Guiyu 9-B). Field experiments were conducted in the early and late growing seasons at different sites in Guangxi province, China, in 2019. A total of five treatments, such as T1: N 180 + SE 0 + MI 0 (kg ha-1) (control); T2: N 180 + SE 3 + MI 3 (kg ha -1); T3: N 144 + SE 3 + MI 3 (kg ha-1); T4: N 126 + SE 3 + MI 3 (kg ha-1); and T5: N 108 + SE 3 + MI 3 (kg ha-1) were used. The leaf area index (LAI), effective panicle number, grain per spike, grain filling rate, and 1000-grain weight were significantly increased in T2 and T3 compared with the control. T2and T3 enhanced the biomass accumulation and grain yield of rice compared with the control. Furthermore, differences in the growth, yield, and yield components among the different cultivars were significant; however, there were no significant differences among the different locations. T3 increased the LAI, grain filling rate, biomass accumulation, and grain yield of rice by 4.5%, 5.9%, 6.6%, and 5.2%, respectively, compared with the control. Improvements in grain yield were mainly attributed to the enhanced growth and yield components. The correlation analysis also confirmed that LAI, productive tillers, grain filling rate, and biomass accumulation were positively correlated with grain yield. In sum, T3 (N144 + SE 3 + MI 3 (kg ha-1)) could achieve higher grain yield despite a reduction in the usage of chemical N. Generally, this study provides a sustainable nutrient management plan that increases crop production while minimizing costs of chemical N fertilizer application.

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Manure combined with chemical fertilizer increases rice productivity by improving soil health, post-anthesis biomass yield, and nitrogen metabolism

Cited by 91 publications

References 63 publications

Response of Paddy Rice (Oryza sativa L.) Morphological Characteristics to Nitrogen Fertilizers in Taveta, Kenya

Response of Paddy Rice (Oryza sativa L.) Morphological Characteristics to Nitrogen Fertilizers in Taveta, Kenya

Co-incorporation of manure and inorganic fertilizer improves leaf physiological traits, rice production and soil functionality in a paddy field

Synthetic nitrogen coupled with seaweed extract and microbial inoculants improves rice (<em>Oryza sativa</em> L.) production under a dual cropping system

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