Nitrogen Management in Sweet Corn (Zea mays L. saccharata) under Organic Farming
| dc.contributor.advisor | S. K. Sharma | |
| dc.contributor.author | SHARMA, ANSHUL | |
| dc.contributor.other | MPUAT, Udaipur | |
| dc.date.accessioned | 2023-10-19T15:27:34Z | |
| dc.date.available | 2023-10-19T15:27:34Z | |
| dc.date.issued | 2023-07-11 | |
| dc.description.abstract | A field experiment entitled “Nitrogen Management in Sweet Corn (Zea mays L. saccharata) under Organic Farming” was conducted at Agronomy Farm, Rajasthan College of Agriculture, MPUAT, Udaipur during kharif 2022.The soil of the experimental site was clay loam in texture with 252, 25.85 and 305.8 kg ha-1 available nitrogen, phosphorus and potassium, respectively in 0-30 cm soil depth with pH 7.9 and 0.67 per cent organic carbon. The experiment was laid out in randomized block design with three replication and eight treatments comparising of control, 100% RDN through FYM, 50% RDN through FYM + intercropping of blackgram, 50% RDN through FYM + green manuring of dhaincha (incorporation at 30 DAS), 50% RDN through FYM + crop residue mulch @ 1 t ha-1 + application of neem cake @ 500 kg ha-1, 50% RDN through FYM + 25% RDN through vermicompost at 30 DAS + 25% RDN through vermicompost at 45 DAS, T1 + intercropping of blackgram and 50% RDN through FYM + jeevamrit @ 500 litre ha-1 at sowing and 30 DAS and 45 DAS + ghanjeevamrit 250 kg ha-1 + spray of vermiwash at 5% at 45 DAS and 60 DAS. The sweet corn variety Suger-75 was sown on 25th July 2022 at 60 cm row to row spacing by using recommended seed rate of 8 kg ha-1. A significant increase in plant height at 45 DAS, 60 DAS and at harvest, dry matter at 45 DAS, 60 DAS and At harvest, leaf area index at 45 DAS and 60 DAS, CGR during 45-60 DAS, number green cob per plant, cob girth at harvest, cob length at harvest, cob placement height, number of grains per cob, number of grains per row, Cob weight, green cob yield, green fodder yield, sweet corn equivalent yield, biological yield, protein content in grain, TSS content in grain, nutrients nitrogen, phosphorus, potassium, iron and zinc content in grain and fodder and their uptake and microbial population (bacteria, fungi and actinomycetes) were recorded with the application of 50% RDN through FYM + 25% RDN through vermicompost at 30 DAS + 25% RDN through vermicompost at 45 DAS, 50% RDN through FYM + jeevamrit @ 500 litre ha-1 at sowing and 30 DAS and 45 DAS + ghanjeevamrit 250 kg ha-1 + spray of vermiwash at 5% at 45 DAS and 60 DAS, 50% RDN through FYM + crop residue mulch @ 1 t ha-1 + application of neem cake @ 500 kg ha-1 and 100% RDN through FYM. The maximum green cob yield of sweet corn was obtained with the application of 50% RDN through FYM + 25% RDN through vermicompost at 30 DAS + 25% RDN through vermicompost at 45 DAS (6502.53 kg ha-1) followed by 50% RDN through FYM + crop residue mulch @ 1 t ha-1 + application of neem cake @ 500 kg ha-1 (5957.00 kg ha-1), 50% RDN through FYM + jeevamrit @ 500 litre ha-1 at sowing and 30 DAS and 45 DAS + ghanjeevamrit 250 kg ha-1 + spray of vermiwash at 5% at 45 DAS and 60 DAS (5850 kg ha-1), and 100% RDN through FYM (5788.72 kg ha-1). The significantly higher net return was obtained with the application of 50% RDN through FYM + 25% RDN through vermicompost at 30 DAS + 25% RDN through vermicompost at 45 DAS (234133 ` ha-1). However its affect was statistically at par with 50% RDN through FYM + jeevamrit @ 500 litre ha-1 at sowing and 30 DAS and 45 DAS + ghanjeevamrit 250 kg ha-1 + spray of vermiwash at 5% at 45 DAS and 60 DAS, 50% RDN through FYM + crop residue mulch @ 1 t ha-1 + application of neem cake @ 500 kg ha-1. Application of nitrogen management practices under organic farming had no significant effect on plant population, CGR at 60 DAS to At harvest, RGR at 45-60 DAS and 60 DAS to At harvest, days to 50% tasselling, days to 50% silking and soil parameter after harvest (EC, pH, OC, nitrogen, phosphorus, potassium and zinc) with application of 50% RDN through FYM + 25% RDN through vermicompost at 30 DAS + 25% RDN through vermicompost at 45 DAS (6502.53 kg ha-1) followed by 50% RDN through FYM + jeevamrit @ 500 litre ha-1 at sowing and 30 DAS and 45 DAS + ghanjeevamrit 250 kg ha-1 + spray of vermiwash at 5% at 45 DAS and 60 DAS, 50% RDN through FYM + crop residue mulch @ 1 t ha-1 + application of neem cake @ 500 kg ha-1 and 100% RDN through FYM. | |
| dc.identifier.citation | Sharma A. and Sharma S. K. | |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810199352 | |
| dc.language.iso | English | |
| dc.pages | 168 | |
| dc.publisher | MPUAT, Udaipur | |
| dc.research.problem | Nitrogen Management in Sweet Corn (Zea mays L. saccharata) under Organic Farming | |
| dc.sub | Agronomy | |
| dc.theme | Nitrogen Management in Sweet Corn (Zea mays L. saccharata) under Organic Farming | |
| dc.these.type | M.Sc | |
| dc.title | Nitrogen Management in Sweet Corn (Zea mays L. saccharata) under Organic Farming | |
| dc.type | Thesis |