Interactive Effects of Nitrogen and Potassium on Grain Yield and Quality of Waxy Maize

Zhang, Qijian; Li, Guanghao; Lu, Wei; Lu, Dalei

doi:10.3390/plants11192528

Cited by 9 publications

(3 citation statements)

References 43 publications

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“…The coordinated application of nitrogen and potassium fertilizers can increase the yield and quality of crops [125]. The nitrate transporter AtNRT1.5/NPF7.3 in Arabidopsis thaliana is an H + /K + antiporter involved in K + xylem loading.…”

Section: Synergistic Regulation Of Potassium and Nitrogenmentioning

confidence: 99%

The Molecular Mechanism of Potassium Absorption, Transport, and Utilization in Rice

Lian,

Geng,

Wang

et al. 2023

IJMS

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Potassium is essential for plant growth and development and stress adaptation. The maintenance of potassium homeostasis involves a series of potassium channels and transporters, which promote the movement of potassium ions (K+) across cell membranes and exhibit complex expression patterns and regulatory mechanisms. Rice is a major food crop in China. The low utilization rate of potassium fertilizer limits the yield and quality of rice. Elucidating the molecular mechanisms of potassium absorption, transport, and utilization is critical in improving potassium utilization efficiency in rice. Although some K+ transporter genes have been identified from rice, research on the regulatory network is still in its infancy. Therefore, this review summarizes the relevant information on K+ channels and transporters in rice, covering the absorption of K+ in the roots, transport to the shoots, the regulation pathways, the relationship between K+ and the salt tolerance of rice, and the synergistic regulation of potassium, nitrogen, and phosphorus signals. The related research on rice potassium nutrition has been comprehensively reviewed, the existing research foundation and the bottleneck problems to be solved in this field have been clarified, and the follow-up key research directions have been pointed out to provide a theoretical framework for the cultivation of potassium-efficient rice.

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Section: Synergistic Regulation Of Potassium and Nitrogenmentioning

confidence: 99%

The Molecular Mechanism of Potassium Absorption, Transport, and Utilization in Rice

Lian,

Geng,

Wang

et al. 2023

IJMS

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“…In addition, many smallholders in China are willing to invest more in their farmland despite being aware of having invested too much in fertilizers, partly due to seeking a lower-risk income. However, many studies show that fertilizer inputs in northern China are excessive (Ju et al, 2007;Xiao et al, 2021;Zhang et al, 2022;Yu et al, 2023). Over-usage of chemical fertilizers has caused serious environmental problems, including surface water eutrophication, groundwater pollution, soil degradation, and greenhouse gas emissions from excess nitrogen that is either lost by immersion into water or volatilized into air as ammonia and N 2 O etc (Yan et al, 2013;Norse and Ju, 2015;Zhou et al, 2018;Yang et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Growth and yield of maize in response to reduced fertilizer application and its impacts on population dynamics and community biodiversity of insects and soil microbes

Zou,

Li,

Wang

et al. 2024

Front. Plant Sci.

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In the North China Plain, farmers are using excessive amounts of fertilizer for the production of high-yield crop yield, which indirectly causes pollution in agricultural production. To investigate an optimal rate of fertilizer application for summer maize, the fertilizer reduction experiments with 600 kg/ha NPK (N: P2O5: K2O = 28: 8: 10) as normal fertilizer application (NFA), (i.e., 100F), were conducted successively during 2020 and 2021 to study the effects of reduced fertilizer rates, including 90% (540 kg/ha; i.e., 90F), 80% (480 kg/ha; i.e., 80F), 62.5% (375 kg/ha; i.e., 62.5F) and 50% (300 kg/ha; i.e., 50F) of NFA, on the plant growth of maize, the dynamics of key population abundances and community diversity of insects, and the composition and diversity of microbial community and finally to find out the N-metabolic enzymes’ activity in soil. Our findings revealed that the fertilizer reduction rates by 10% - 20% compared to the current 100% NFA, and it has not significantly affected the plant growth of maize, not only plant growth indexes but also foliar contents of nutrients, secondary metabolites, and N-metabolic enzymes’ activity. Further, there was no significant alteration of the key population dynamics of the Asian corn borer (Ostrinia furnacalis) and the community diversity of insects on maize plants. It is interesting to note that the level of N-metabolic enzymes’ activity and microbial community diversity in soil were also not affected. While the fertilizer reduction rate by 50% unequivocally reduced field corn yield compared to 100% NFA, significantly decreased the yield by 17.10%. The optimal fertilizer application was calculated as 547 kg/ha (i.e., 91.17% NFA) based on the simulation analysis of maize yields among the five fertilizer application treatments, and the fertilizer application reduced down to 486 kg/ha (i.e., 81.00% NFA) with a significant reduction of maize yield. These results indicated that reduced the fertilizer application by 8.83% - 19.00% is safe and feasible to mitigate pollution and promote sustainable production of maize crops in the region.

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“…K can increase the grain yield, protein content, starch accumulation in maize seeds, and maize root growth. Phosphates can increase photosynthesis rate and biomass weight ( [11], [12], [13]).…”

Section: Introductionmentioning

confidence: 99%

Recommendations of N, P, and K site-spesific for maize cropping in the Jeneponto District of South Sulawesi

Herawati,

Irmadamayanti,

Efendi

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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The incompatibility of N, P, and K rates for maize plants causes a decrease in plant productivity and farmer income. Therefore, there is a need for appropriate N, P, and K fertilizer recommendations based on agroecosystems that farmers can apply. This research aims to obtain location-specific N, P, and K fertilization recommendations for maize based on the agroecosystem in Jeneponto Regency, South Sulawesi. This research was conducted in Jeneponto District, South Sulawesi, from March to October 2021. The research used a survey method adapted to the questions in the Nutrient Expert (NE) program form. The research showed that the optimum fertilizer recommendation for maize in Jeneponto District was 170 – 190 kg N ha−1, 30 – 60 kg P2O5 ha−1, and 33 – 63 kg K2O ha−1, with a 9 – 10 t/ha yield. Using these recommendations, they will gain a higher profit and R-C ratio than the farmer’s existing fertilization, namely, a profit of RP. 30,499,400 (Rp. 30,276,000 – 30,697,000) with an R-C ratio of 4.05 (3.96 – 4.13), whereas if using existing fertilization at the farmer level, they will gain a profit of Rp. 19,397,000 (Rp. 14,215,000 – Rp. 25,735,000) with an R-C ratio of 2.20 (1.81 – 2.75).

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Interactive Effects of Nitrogen and Potassium on Grain Yield and Quality of Waxy Maize

Cited by 9 publications

References 43 publications

The Molecular Mechanism of Potassium Absorption, Transport, and Utilization in Rice

The Molecular Mechanism of Potassium Absorption, Transport, and Utilization in Rice

Growth and yield of maize in response to reduced fertilizer application and its impacts on population dynamics and community biodiversity of insects and soil microbes

Recommendations of N, P, and K site-spesific for maize cropping in the Jeneponto District of South Sulawesi

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