Abstract
Introduction Sugarcane is a long-duration and nutrient-exhaustive crop. To improve nutrient use efficiency, the 4R nutrient stewardship approach comprises applying nutrients at the right time and place with the right method and at the right proportion. Improper nutrient management in such a nutrient-exhaustive crop will result in various nutrient losses and environmental pollution. Methods Concerning this, a field study was performed on calcareous soils of the lower Indo-Gangetic plains of India during two subsequent years at the Sugarcane Research Institute, RPCAU, India, to explore the effect of precise application of macronutrients (N and K) in different methods of applications. The application methods (broadcasting and band application) were maintained in the main plot, and split N and K applications were put in the subplots. Results and Discussion A highly significant difference was observed in the numbers of millable cane, cane, and sugar yield under the split applications of fertilizer. The decline in millable cane numbers, cane, and sugar yield due to the broadcasting method was to the tune of 17.5 and 17.6%, 14.8 and 17.1%, and 14.7 and 15.8% in plant and ratoon crops, respectively as compared to band placement of the fertilizers. Yield increased by 16.0 and 15.1% under plant and ratoon crops, respectively, with seven split applications of N and K compared to the control (two split of N and no split application of K). Band placement of N and K fertilizers markedly improved the nitrogen uptake (284.1 and 287.3 kg ha −1 , in plant and ratoon, respectively) and phosphorus uptake (34.9 and 28.3 kg ha −1 in plant and ratoon, respectively) when compared to broadcasting. Application of N and K in seven splits resulted in better availability of nutrients in the soil, thereby facilitating the higher NPK uptake by the plants and ratoon both comparing two split applications of N and no splitting of K. From this study, it was observed that the band placement coupled with seven splitting of N and K is the best fertilizer application protocol, ensuring higher growth, yield, quality, and nutrient uptake of sugarcane in the calcareous soils of the Indo-Gangetic plains.
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 8
Claim · model-written summary
Broadcasting instead of band placement reduced millable cane numbers by 17.5 and 17.6% in plant and ratoon crops.
Verbatim
e0“Sugarcane is a long-duration and nutrient-exhaustive crop”
e1“a field study was performed on calcareous soils of the lower Indo-Gangetic plains of India during two subsequent years”
e2“The decline in millable cane numbers, cane, and sugar yield due to the broadcasting method was to the tune of 17.5 and 17.6%, 14.8 and 17.1%, and 14.7 and 15.8% in plant and ratoon crops, respectively as compared to band placement of the fertilizers”
Claim · model-written summary
Broadcasting instead of band placement reduced cane yield by 14.8 and 17.1% in plant and ratoon crops.
Verbatim
e0“Sugarcane is a long-duration and nutrient-exhaustive crop”
e1“a field study was performed on calcareous soils of the lower Indo-Gangetic plains of India during two subsequent years”
e2“The decline in millable cane numbers, cane, and sugar yield due to the broadcasting method was to the tune of 17.5 and 17.6%, 14.8 and 17.1%, and 14.7 and 15.8% in plant and ratoon crops, respectively as compared to band placement of the fertilizers”
Claim · model-written summary
Broadcasting instead of band placement reduced sugar yield by 14.7 and 15.8% in plant and ratoon crops.
Verbatim
e0“Sugarcane is a long-duration and nutrient-exhaustive crop”
e1“a field study was performed on calcareous soils of the lower Indo-Gangetic plains of India during two subsequent years”
e2“The decline in millable cane numbers, cane, and sugar yield due to the broadcasting method was to the tune of 17.5 and 17.6%, 14.8 and 17.1%, and 14.7 and 15.8% in plant and ratoon crops, respectively as compared to band placement of the fertilizers”
Claim · model-written summary
Seven split applications of N and K increased yield by 16.0 and 15.1% in plant and ratoon crops compared with the control.
Verbatim
e0“Sugarcane is a long-duration and nutrient-exhaustive crop”
e1“a field study was performed on calcareous soils of the lower Indo-Gangetic plains of India during two subsequent years”
e3“Yield increased by 16.0 and 15.1% under plant and ratoon crops, respectively, with seven split applications of N and K compared to the control (two split of N and no split application of K)”
Claim · model-written summary
Seven splits of N and K gave better availability of nutrients in the soil compared with two split applications of N and no splitting of K.
Verbatim
e0“Sugarcane is a long-duration and nutrient-exhaustive crop”
e6“Application of N and K in seven splits resulted in better availability of nutrients in the soil”
e7“thereby facilitating the higher NPK uptake by the plants and ratoon both comparing two split applications of N and no splitting of K”
Claim · model-written summary
Seven splits of N and K gave higher NPK uptake by plants and ratoon compared with two split applications of N and no splitting of K.
Verbatim
e0“Sugarcane is a long-duration and nutrient-exhaustive crop”
e6“Application of N and K in seven splits resulted in better availability of nutrients in the soil”
e7“thereby facilitating the higher NPK uptake by the plants and ratoon both comparing two split applications of N and no splitting of K”
Claim · model-written summary
Band placement coupled with seven splittings of N and K is the best fertilizer application protocol for sugarcane on calcareous soils of the Indo-Gangetic plains.
Verbatim
e0“Sugarcane is a long-duration and nutrient-exhaustive crop”
e1“the band placement coupled with seven splitting of N and K is the best fertilizer application protocol, ensuring higher growth, yield, quality, and nutrient uptake of sugarcane in the calcareous soils of the Indo-Gangetic plains”
Claim · model-written summary
Band placement coupled with seven splittings of N and K gave higher growth, yield and quality of sugarcane.
Verbatim
e0“Sugarcane is a long-duration and nutrient-exhaustive crop”
e1“the band placement coupled with seven splitting of N and K is the best fertilizer application protocol, ensuring higher growth, yield, quality, and nutrient uptake of sugarcane in the calcareous soils of the Indo-Gangetic plains”
The same questions in other papers
potassium · yield · Saccharum officinarum (sugarcane)Results differ
49 papers in the same direction as this paper · 7 in the opposite direction
- positive
- no effect
- negative
53 papers more in this group
See all 57 papers →nitrogen · yield · Saccharum officinarum (sugarcane)Results differ
117 papers in the same direction as this paper · 15 in the opposite direction · 4 reporting no difference from an alternative
- positive
- no effect
- negative
133 papers more in this group
See all 137 papers →transplanting · quality: sugar starch · Saccharum officinarum (sugarcane)Positive and negative results
2 in the opposite direction
- positive
- positive
nitrogen · nutrient: content · Saccharum officinarum (sugarcane)Positive and negative results
22 papers in the same direction as this paper · 8 in the opposite direction
- no effect
- negative
- negative
27 papers more in this group
See all 31 papers →potassium · nutrient: content · Saccharum officinarum (sugarcane)Results agree
9 papers in the same direction as this paper
- positive
- positive
- positive
6 papers more in this group
See all 10 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.