Planting Technology and Planting Density on Major Agronomic Characters and Yield of Jihua 2
Under different planting technologies,we researched the effects of different planting densities and planting technologies on major ag-ronomic characters and yield of Jihua 2 in Jilin Province. We screened the proper planting technology and planting density for ecological envi-ronment of Jilin Province and improved the supporting efficient cultivation technology of Jihua 2. Two planting technologies and five planting densities (1.79×105,2.02×105,2.30×105,2.69×105,3.23×105 plants/hm2),we researched the changes of photosynthetic index and yield of peanut. Results showed that treatment of small ridges and double rows and 2.02×105 plants/hm2 planting density had the shortest growth peri-od,which was 1-2 d earlier than that of double-grain cave sowing. Besides,the plant was shortest,which was suitable for underground dry mat-ter accumulation,the leaf area index and total photosynthetic potential were the maximum. The yield of treatment was the highest,which was 3651.15 kg/hm2 ,and enhanced by 10.17％ compared with that of double-grain cave sowing. Thus,the production technology of small ridges and double rows should be vigorously promoted.
Multi-grain peanutPlanting technologyPlanting densityLeaf area coefficientPhotosynthetic potential
万方数据
维普
