Abstract
The potential for sweet corn in Indonesia is very high, however, its cultivation often experiences problems, one of which is that the planting land has a low fertility level. Optimizing the use of fertilizer is one way to increase soil fertility and increase the growth of sweet corn. Using controlled-release NPK fertilizer is the best way to ensure that nutrient availability meets plant nutrient needs. This experiment aims to obtain the best effect and treatment of coating and time on total soil N content and N uptake of sweet corn plants. The experiment was carried out from June to September 2021 at the Experimental Garden and Laboratory of Soil Chemistry and Plant Nutrition, Department of Soil Science and Land Resources, Faculty of Agriculture, Padjadjaran University, Jatinangor. This experiment used a Split Plot Repeated Observation Design experiment over time with 12 treatment combinations and 3 replications consisting of 3 levels of coating treatment, namely without coating (C0), 5-6% coating (C1) and 11-12% coating (C2); and 4 treatment time levels, namely 15 days after planting (W1), 30 days after planting (W2), 45 days after planting (W3), and 60 days after planting (W4). The research results show that; (1) there is no interaction between the coating factor and the time factor on total soil N content and plant N uptake; (2) There is an independent influence of the coating factor on soil N-total and plant N uptake. Coating treatments of 5-6% (C1) and 11-12% (C2) produced lower total soil N content and plant N uptake compared to the treatment without coating (C0); and (3) There is an independent influence of the time factor on the total N content of the soil, but it has no significant effect on plant N uptake. The longer the application time is followed the higher the total N content of the soil and plant N uptake.
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Claims 9
Claim · model-written summary
Coating and time did not interact for soil total nitrogen content.
- Taxon
- sweet cornt0
- Treatment
- coating factor and the time factore0
- Outcome
- total soil N contente0
- Direction
- no interactione0
Not reportedComparator
Verbatim
e0“there is no interaction between the coating factor and the time factor on total soil N content and plant N uptake”
t0“Sweet Corn”
Claim · model-written summary
Coating and time did not interact for plant nitrogen uptake.
- Taxon
- sweet cornt0
- Treatment
- coating factor and the time factore0
- Outcome
- plant N uptakee0
- Direction
- no interactione0
Not reportedComparator
Verbatim
e0“there is no interaction between the coating factor and the time factor on total soil N content and plant N uptake”
t0“Sweet Corn”
Claim · model-written summary
Coating at 5-6% produced lower total soil nitrogen than without coating.
Verbatim
e0“Coating treatments of 5-6% (C1) and 11-12% (C2) produced lower total soil N content and plant N uptake compared to the treatment without coating (C0)”
t0“Sweet Corn”
Claim · model-written summary
Coating at 11-12% produced lower total soil nitrogen than without coating.
Verbatim
e0“Coating treatments of 5-6% (C1) and 11-12% (C2) produced lower total soil N content and plant N uptake compared to the treatment without coating (C0)”
t0“Sweet Corn”
Claim · model-written summary
Coating at 5-6% produced lower plant nitrogen uptake than without coating.
Verbatim
e0“Coating treatments of 5-6% (C1) and 11-12% (C2) produced lower total soil N content and plant N uptake compared to the treatment without coating (C0)”
t0“Sweet Corn”
Claim · model-written summary
Coating at 11-12% produced lower plant nitrogen uptake than without coating.
Verbatim
e0“Coating treatments of 5-6% (C1) and 11-12% (C2) produced lower total soil N content and plant N uptake compared to the treatment without coating (C0)”
t0“Sweet Corn”
Claim · model-written summary
Longer application time was associated with higher total soil nitrogen.
Verbatim
e0“The longer the application time is followed the higher the total N content of the soil and plant N uptake.”
t0“Sweet Corn”
Claim · model-written summary
Application time had no significant effect on plant nitrogen uptake.
Not reportedComparatorDirection
Verbatim
e0“There is an independent influence of the time factor on the total N content of the soil, but it has no significant effect on plant N uptake.”
t0“Sweet Corn”
Claim · model-written summary
The concluding sentence reports higher plant nitrogen uptake with longer application time, despite the preceding nonsignificant finding.
Verbatim
e0“The longer the application time is followed the higher the total N content of the soil and plant N uptake.”
t0“Sweet Corn”
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