Abstract
Abstract The decline in agricultural land productivity due to climate change and excessive use of inorganic fertilizers requires us to implement an environmentally friendly cultivation system, by reducing the application rate of inorganic fertilizers and combining them with organic fertilizers. Liquid organic fertilizer (LOF) is one type of fertilizer that is expected to increase plant growth and yield and reduce the dose of inorganic fertilizers. The objective of this study was to examine the effect of LOF on growth, the yield of sweet corn, nutrient uptake, and the fertilizer use-efficiency of inorganic fertilizers. This Research has conducted at Inceptisol Galuga Bogor, with a randomized block design as an experimental design. The treatments consisted of a control, five doses of LOF and 2 doses of NPK fertilizer. The results showed LOF fertilizer at a dose of 0.75 - 3.0 l ha −1 combined with 100% NPK and 75% NPK increased the yield of fresh cobs by 15% - 19% compared to NPK without LOF. The weight of fresh cobs fertilized with LOF with 100% NPK was (14.63 - 16.68 t ha −1 ) with RAE= 130 - 205%, which is higher than without LOF (13.73 t ha −1 ). The combination of LOF with 75% NPK gave the weight of fresh cobs (11.88-15.12 t ha −1 ) with RAE = 115-507 %, which is higher than without LOF (11.75 t ha −1 ). LOF can contribute to NPK fertilizer efficiency by 25% of the dose. Nutrient use-efficiency for N is well-managed but lower for P and K.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
LOF at 0.75 to 3.0 l/ha with full NPK increased fresh cob yield by 15 to 19% against NPK alone.
Verbatim
e0“LOF fertilizer at a dose of 0.75 - 3.0 l ha −1 combined with 100% NPK and 75% NPK increased the yield of fresh cobs by 15% - 19% compared to NPK without LOF”
t0“sweet corn (Zea mays saccharata Sturt)”
Claim · model-written summary
LOF at 0.75 to 3.0 l/ha with 75% NPK increased fresh cob yield by 15 to 19% against NPK alone.
Verbatim
e0“LOF fertilizer at a dose of 0.75 - 3.0 l ha −1 combined with 100% NPK and 75% NPK increased the yield of fresh cobs by 15% - 19% compared to NPK without LOF”
t0“sweet corn (Zea mays saccharata Sturt)”
Claim · model-written summary
LOF with full NPK produced 14.63 to 16.68 t/ha fresh cobs, above 13.73 without LOF.
Verbatim
e0“The weight of fresh cobs fertilized with LOF with 100% NPK was (14.63 - 16.68 t ha −1 ) with RAE= 130 - 205%, which is higher than without LOF (13.73 t ha −1 )”
t0“sweet corn (Zea mays saccharata Sturt)”
Claim · model-written summary
LOF with full NPK had relative agronomic effectiveness of 130 to 205%.
Verbatim
e0“LOF with 100% NPK was (14.63 - 16.68 t ha −1 ) with RAE= 130 - 205%”
t0“sweet corn (Zea mays saccharata Sturt)”
Claim · model-written summary
LOF with 75% NPK produced 11.88 to 15.12 t/ha fresh cobs, above 11.75 without LOF.
Verbatim
e0“The combination of LOF with 75% NPK gave the weight of fresh cobs (11.88-15.12 t ha −1 ) with RAE = 115-507 %, which is higher than without LOF (11.75 t ha −1 )”
t0“sweet corn (Zea mays saccharata Sturt)”
Claim · model-written summary
LOF with 75% NPK had relative agronomic effectiveness of 115 to 507%.
Verbatim
e0“LOF with 75% NPK gave the weight of fresh cobs (11.88-15.12 t ha −1 ) with RAE = 115-507 %”
t0“sweet corn (Zea mays saccharata Sturt)”
Claim · model-written summary
LOF allowed a 25% reduction in NPK fertilizer dose.
Verbatim
e0“LOF can contribute to NPK fertilizer efficiency by 25% of the dose”
t0“sweet corn (Zea mays saccharata Sturt)”
Claim · model-written summary
Nutrient use efficiency was well managed for nitrogen.
Not reportedDirection
Verbatim
e0“Nutrient use-efficiency for N is well-managed”
t0“sweet corn (Zea mays saccharata Sturt)”
Claim · model-written summary
Nutrient use efficiency was lower for phosphorus and potassium.
Verbatim
e0“lower for P and K”
t0“sweet corn (Zea mays saccharata Sturt)”
e1“Nutrient use-efficiency for N is well-managed”
The same questions in other papers
fertilization · yield · Zea mays (maize)Positive and negative results
3,484 papers in the same direction as this paper · 338 in the opposite direction · 85 reporting no difference from an alternative
- positive
- positive
- negative
3,904 papers more in this group
See all 3,908 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.