What does this research mean for the field?

Substituting 25% of conventional nitrogen requirements with either dhaincha incorporated at planting or vermicompost applied ten days before planting yields superior results and maintains soil fertility in rice cultivation. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To assess temporal variations in soil nutrient bioavailability and rice productivity under different organic nitrogen substitution rates and application timings.

August 22, 2026Discover Soil.Open Access

Temporal assessment of nutrient bioavailability in rice using different organic inputs

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To assess temporal variations in soil nutrient bioavailability and rice productivity under different organic nitrogen substitution rates and application timings.
Conducted a randomized block design field trial with three replications across two consecutive kharif seasons (2019 and 2020) using Pusa basmati-1509 rice.
Evaluated 14 treatments testing 25% and 37.5% nitrogen substitution using dhaincha and vermicompost applied at planting, 5 days prior, or 10 days prior, combined with inorganic fertilizers.
Monitored temporal soil availability of major nutrients (N, P, K) and micronutrients (S, Zn) alongside residual soil fertility.
The highest residual soil fertility was achieved with 37.5% nitrogen substitution through vermicompost applied on the planting date.
Substituting 25% nitrogen with dhaincha at planting or vermicompost 10 days before planting resulted in superior yields compared to treatments T2, T4, T7, T8, and T11.
Soil bioavailability of macronutrients (N, P, K) and micronutrients (S, Zn) fluctuated significantly across growth stages depending on organic source and timing.

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Implication

Field trial demonstrates improved nutrient availability and crop yield in rice with organic nitrogen substitution, indicating viable sustainable fertilization strategies.

Cite This Study

Pathak et al. (2026) studied this question.

synapsesocial.com/papers/6a895f9cca7ade938187e5c8 https://doi.org/10.1007/s44378-026-00299-6

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Implication

Field trial demonstrates improved nutrient availability and crop yield in rice with organic nitrogen substitution, indicating viable sustainable fertilization strategies.

Temporal assessment of nutrient bioavailability in rice using different organic inputs

Key Points

Discussion

Implication

Cite This Study

Temporal assessment of nutrient bioavailability in rice using different organic inputs

Key Points

Discussion

Implication

Cite This Study

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