Abstract
A field experiment entitled was conducted at central farm OUAT, Bhubaneswar under Department of Soil Science & Agricultural Chemistry during Kharif 2017. The physiological studies were carried out in the Department of Plant Physiology, College of Agriculture, Bhubaneswar. The result revealed that plant height, number of leaves and dry matter were improved by the level of P application. Among the treatments application of 100% P(SSP)+0.2% LR registered significant increase in of the above growth character in maize crop which reflect a higher value of LAI, CGR, RGR and lower value of NAR. Chlorophyll content was found to be maximum in T7 (100% SSP + 0.2% LR) followed by T5 (50% RP+50% SSP). The other nutritional components like carbohydrate, protein and sugar of grains increased significantly with increase in the level of P application. Higher concentration of nutrient elements (N, P, K and S) found maximum in 100% SSP + 0.2% LR in both grain and Stover. Among the different combination of RP and SSP, taller plant and highest no. of leaves were produced by application of 50% RP+50% SSP with higher dry matter accumulation. The biochemical traits like nutritional composition (carbohydrate, protein & sugar) found maximum with the application of 50% RP+50% SSP among the combined application. But in the combination of RP and SSP nutrient contents (N, P, K & S) found maximum with application of 25% RP+75% SSP in Stover and with the application of 50% RP+50% SSP found maximum in grain. The grain yield in maize increased significantly with increase in the level of P application due to increase in cob weight, no. of grain per plant, cob length, cob diameter, 100 seed weight and the highest yield registered among the treatments by the application of 100% SSP+0.2% LR. Among the combined application of 50% RP+50% SSP registered the highest yield over the sole application of either R or SSP. In view of the positive and beneficial effect of P application in maize crop it may be concluded that improvement in productive of maize crop by the use of low grade rock phosphate under acid soils can be possible through combined application of 50% RP + 50% SSP.
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Claims 14
Claim · model-written summary
Plant height, leaf number and dry matter improved with higher P application.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant height, number of leaves and dry matter were improved by the level of P application”
t0“maize”
Claim · model-written summary
The 100% P(SSP)+0.2% LR treatment significantly increased maize growth characters.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of 100% P(SSP)+0.2% LR registered significant increase in of the above growth character in maize crop”
Claim · model-written summary
The same treatment was associated with higher LAI, CGR and RGR and lower NAR.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher value of LAI, CGR, RGR and lower value of NAR”
e1“100% P(SSP)+0.2% LR”
t0“maize”
Claim · model-written summary
NAR was lower with the 100% P(SSP)+0.2% LR treatment.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lower value of NAR”
e1“100% P(SSP)+0.2% LR”
t0“maize”
Claim · model-written summary
Chlorophyll content was greatest under T7, followed by T5.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorophyll content was found to be maximum in T7 (100% SSP + 0.2% LR) followed by T5 (50% RP+50% SSP)”
t0“maize”
Claim · model-written summary
Grain carbohydrate, protein and sugar increased significantly with P application level.
- Organ / stage
- grainse0
- Treatment
- P applicatione0
- Outcome
- carbohydrate, protein and sugare0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“carbohydrate, protein and sugar of grains increased significantly with increase in the level of P application”
t0“maize”
Claim · model-written summary
N, P, K and S concentrations in grain and stover were maximal under 100% SSP + 0.2% LR.
- Organ / stage
- grain and Stovere0
- Treatment
- 100% SSP + 0.2% LRe0
- Outcome
- concentration of nutrient elements (N, P, K and S)e0
- Direction
- maximume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher concentration of nutrient elements (N, P, K and S) found maximum in 100% SSP + 0.2% LR in both grain and Stover”
t0“maize”
Claim · model-written summary
Among RP and SSP combinations, 50% RP+50% SSP produced taller plants, the most leaves and higher dry matter.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“taller plant and highest no. of leaves were produced by application of 50% RP+50% SSP with higher dry matter accumulation”
t0“maize”
Claim · model-written summary
Among combined applications, 50% RP+50% SSP maximized grain carbohydrate, protein and sugar.
- Treatment
- 50% RP+50% SSPe0
- Outcome
- nutritional composition (carbohydrate, protein & sugar)e0
- Direction
- maximume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nutritional composition (carbohydrate, protein & sugar) found maximum with the application of 50% RP+50% SSP among the combined application”
t0“maize”
Claim · model-written summary
Stover N, P, K and S content was greatest under 25% RP+75% SSP.
- Organ / stage
- Stovere0
- Treatment
- 25% RP+75% SSPe0
- Outcome
- nutrient contents (N, P, K & S)e0
- Direction
- maximume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nutrient contents (N, P, K & S) found maximum with application of 25% RP+75% SSP in Stover”
t0“maize”
Claim · model-written summary
Grain N, P, K and S content was greatest under 50% RP+50% SSP.
- Organ / stage
- graine0
- Treatment
- 50% RP+50% SSPe0
- Outcome
- nutrient contents (N, P, K & S)e1
- Direction
- maximume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with the application of 50% RP+50% SSP found maximum in grain”
e1“nutrient contents (N, P, K & S)”
t0“maize”
Claim · model-written summary
Maize grain yield increased significantly with P application and was highest under 100% SSP+0.2% LR.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The grain yield in maize increased significantly with increase in the level of P application due to increase in cob weight, no. of grain per plant, cob length, cob diameter, 100 seed weight and the highest yield registered among the treatments by the application of 100% SSP+0.2% LR”
Claim · model-written summary
Among combined treatments, 50% RP+50% SSP had greater yield than either sole source.
- Treatment
- 50% RP+50% SSPe0
- Outcome
- yielde0
- Direction
- higheste0
- Comparator
- sole application of either R or SSPe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“50% RP+50% SSP registered the highest yield over the sole application of either R or SSP”
t0“maize”
Claim · model-written summary
The authors conclude that 50% RP + 50% SSP can improve maize productivity under acid soils.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improvement in productive of maize crop by the use of low grade rock phosphate under acid soils can be possible through combined application of 50% RP + 50% SSP”
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