Abstract
An investigation was done during 1993-94 to study the effect of 10-year old irrigated and rainfed plantations of Eucalyptus tereticornis Smith and Leuceana leucocephala (Lam.) de Wit on available nutrient status of 2 related soil series belonging to Typic Ustochrept with the hypothesis that unless properly managed, those fast growing species may degrade the soil fertility in a long run, Raising either crops under rainfed condition depleted all the major nutrients and zinc over fallow both at the surface and down the profile. Among the plantations Eucalyptus preserved N and K better than Leuceana while the latter was superior with relation to P and secondary nutrients; micronutrients not showing any definite trend. Results could be explained in terms of nutrient demand, nutrient fixation in standing plantations and renewal through leaf fall and litter formation. Biomass and nutrient harvested/recycled data is expected to provide further insight to the problem. Pot culture experiment with upper 30 cm soil and 'HD 2428' wheat (Triticum aestivum L. emend. Fiori & Paol.) as a test crop corroborated the field study. Soil under irrigated Eucalyptus gave wheat grain yield at par with treatment having recommended fertilizer dose in fallow while that under Leuceana was significantly lower. Available N, P, K and Zn were found to be important controlling factors towards wheat grain yield.
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Claims 7
Claim · model-written summary
Rainfed plantations depleted major nutrients and zinc compared with fallow.
Verbatim
e0“Raising either crops under rainfed condition depleted all the major nutrients and zinc over fallow both at the surface and down the profile”
t0“Eucalyptus tereticornis Smith and Leuceana leucocephala (Lam.) de Wit”
Claim · model-written summary
Eucalyptus preserved soil N and K better than Leuceana.
- Taxon
- Eucalyptus
.jpg?width=60)
Eucalyptuse0 - Outcome
- N and Ke0
- Direction
- bettere0
- Comparator
- Leuceanae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Eucalyptus preserved N and K better than Leuceana”
Claim · model-written summary
Leuceana was superior to Eucalyptus for P and secondary nutrients.
Verbatim
e0“the latter was superior with relation to P and secondary nutrients”
t0“Eucalyptus tereticornis Smith and Leuceana leucocephala (Lam.) de Wit”
Claim · model-written summary
Micronutrients showed no definite trend across plantations.
Verbatim
e0“micronutrients not showing any definite trend”
t0“Eucalyptus tereticornis Smith and Leuceana leucocephala (Lam.) de Wit”
Claim · model-written summary
Wheat grain yield with irrigated Eucalyptus soil was at par with recommended fertilizer dose in fallow.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- Soil under irrigated Eucalyptuse0
- Outcome
- wheat grain yielde0
- Direction
- at pare0
- Comparator
- treatment having recommended fertilizer dose in fallowe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil under irrigated Eucalyptus gave wheat grain yield at par with treatment having recommended fertilizer dose in fallow”
t0“'HD 2428' wheat (Triticum aestivum L. emend. Fiori & Paol.)”
Claim · model-written summary
Wheat grain yield with Leuceana soil was significantly lower.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Leuceanae0
- Outcome
- wheat grain yielde1
- Direction
- lowere0
- Comparator
- Eucalyptuse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while that under Leuceana was significantly lower”
t0“'HD 2428' wheat (Triticum aestivum L. emend. Fiori & Paol.)”
e1“Soil under irrigated Eucalyptus gave wheat grain yield at par with treatment having recommended fertilizer dose in fallow”
Claim · model-written summary
Available N, P, K and Zn controlled wheat grain yield.
- Taxon
- wheatTriticum aestivume0
- Compound
- N, P, K and Zne0
- Outcome
- wheat grain yielde0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Available N, P, K and Zn were found to be important controlling factors towards wheat grain yield”
The same questions in other papers
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irrigation · yield · Triticum aestivum (wheat)Positive and negative results
190 papers in the same direction as this paper · 798 reporting no difference from an alternative
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See all 989 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.