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Singh, Devendra
- Drip Fertigation Study in Spring Maize (Zea mays L.)
Abstract Views :182 |
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Authors
Affiliations
1 Department of Agricultural, Bhagwant University, Ajmer (Rajasthan), IN
2 Department of Agriculture, Bhagwant University, Ajmer (Rajasthan), IN
3 Department of Agricultural Biotechnology, Bhagwant University, Ajmer (Rajasthan), IN
1 Department of Agricultural, Bhagwant University, Ajmer (Rajasthan), IN
2 Department of Agriculture, Bhagwant University, Ajmer (Rajasthan), IN
3 Department of Agricultural Biotechnology, Bhagwant University, Ajmer (Rajasthan), IN
Source
International Journal of Agricultural Engineering, Vol 10, No 2 (2017), Pagination: 379-400Abstract
Drip system can control the rate of water application to achieve application efficiency as high as 92-95%. It is also excellent for soil with higher infiltration rates. In conventional way of nutrient management, the P and K are applied as basal. However, the demand for these two macro-nutrients remains high during the entire growing season. Splitting of K was more beneficial than applying full K at time of planting in soybean. Maize is one of the crop that responses well to phosphatic fertilizers in almost all the soil types. Phosphorus plays vital role in plant nutrition. The deficiency of phosphorus in soil severely limits ischolar_main and shoot growth and thereby affecting the yield. The experiment consisting of 3 irrigation regimes (100% CPE, 80% CPE and 60% CPE), 2 fertilizer dose (75% RDF and 100% RDF), 2 PK splitting (equal and 70/30) along with 2 control treatments (flood IW: CPE 0.8 with mulch and flood IW:CPE 1.0) was laid out in Split Plot Design with three replications. From findings of present investigation based on cob weight without husk it can be inferred that spring maize in sandy loam soil should be irrigated at 80% CPE. It should be fertilized at 90:45:30 N, P2O5, K2O kg/ha with PK application as 70% upto tasseling and 30% thereafter.Keywords
CPE, RDF, PK,LAI, NPK.
References
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- Narayanamoorthy, A. (2005). Economics of drip irrigation in sugarcane cultivation: Case study of a farmer from Tamil Nadu. Indian J. Agric. Econ., 60 : 235-248.
- Singh, K.B., Jalotha, S.K. and Gupta, R.K. (2015). Soil water balance and response of spring maize (Zea mays) to mulching and differential irrigation in Punjab. Indian J. Agro., 60 (2): 279-284.
- Yazar, A., Sezen, S.M. and Gencel, B. (2002). Drip irrigation of corn in the Southeast Anatolia Project (GAP) area in Turkey. Irrig. Drain, 51: 293-300.
- Response of Single-Cut Fodder Sorghum Genotypes to Fertility Levels under Rainfed Conditions of Rajasthan
Abstract Views :158 |
PDF Views:0
Authors
Affiliations
1 Department of Agriculture, Bhagwant University, Ajmer (Rajasthan), IN
2 Department of Agricultural Biotechnology, Bhagwant University, Ajmer (Rajasthan), IN
1 Department of Agriculture, Bhagwant University, Ajmer (Rajasthan), IN
2 Department of Agricultural Biotechnology, Bhagwant University, Ajmer (Rajasthan), IN
Source
International Journal of Agricultural Engineering, Vol 10, No 2 (2017), Pagination: 423-440Abstract
The objectives were to study the appropriate sorghum fodder variety for this zone, work out the optimum fertility level for test genotypes and to study the economically viable treatment. Soil of experimental field was calcareous in nature, medium in available nitrogen (272.00), phosphorus (21.69) and high in available potassium (284.60). The experiment consisted of 24 treatment combinations comprising four levels of fertility (50, 75, 100 and 125% RDF) and six varieties (SPV-2185, SPV-2191, CSV-21F, HC- 308, CSV-30F and PC-1080) laid out in Factorial Randomized Block Design and replicated thrice. The result showed that among the genotypes, SPV-2185 produced maximum plant height, DMA at 25, 50DAS and at harvest, stem girth and number of leaves plant-1 at harvest, green and dry fodder yield, crude protein, ether extract, crude fibre mineral ash content and TDN in fodder. This genotype also estimated significantly gross and net returns over rest of the genotypes. However, maximum HCN content at 25 and 50DAS, organic carbon, available P and K status in soil after harvest with variety SPV-2191. Genotype CSV-21F produced maximum nitrogen status in soil. An application of 125% RDF recorded maximum plant height, stem girth, number of leaves at harvest, dry matter accumulation at various growth stages, green fodder and dry fodder yield, crude protein, crude fibre, ether extract, mineral ash content, TDN, HCN at 25 and 50 DAS, available organic carbon nitrogen phosphorus and potassium in soil after harvest over lower doses in all the above parameters. Highest nitrogen free extract were obtained under 50% RDF while, the lowest being recorded fewer than 125% RDF. In case of gross return, net return and B:C ratio with application of 125% RDF recorded significantly higher over 50% RDF, 75% RDF and 100% RDF.Keywords
DMA, TDN, HCN, SPV-2191, CSV-21F.References
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