• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Crop Research >Productivity, profitability, energetics and nutrient use efficiency of maize (Zea mays L.) cultivars at different fertility levels under rainfed conditions in temperate zone of Jammu and Kashmir.
【24h】

Productivity, profitability, energetics and nutrient use efficiency of maize (Zea mays L.) cultivars at different fertility levels under rainfed conditions in temperate zone of Jammu and Kashmir.

机译：查mu和克什米尔温带雨养条件下，不同生育水平下玉米（Zea mays L.）品种的生产力，利润率，能量和养分利用效率。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

An experiment was conducted at the experimental farm, Sartangal of Krishi Vigyan Kendra, Bhaderwah, Doda in the temperate Agro-climatic Zone of Jammu and Kashmir to evaluate six maize varieties viz., V1: local variety, V2: UDMH-3, V3: UDMC-3, V4: UDMC-4, V5: UDMC-1 and V6: C-8 along with four fertility levels viz., F1: Control, F2: 75% of RDF (60:40:20 kg NPK/ha), F3: 100% of RDF (60:40:20 kg NPK/ha) and F4: 125% of RDF for productivity, profitability, energetics and nutrient use efficiency under rainfed conditions. The experiment was conducted in factorial randomized block design, replicated thrice with 24 treatment combinations. The hybrid variety UDMH-3 matured 12 days earlier and increased the grain yield by 32.2% and benefit:cost ratio by 53.2% over local variety. It was also highly energy efficient with energy output:input ratio of 20.15% and energy productivity of 0.50 kg M/J. The inclusion of improved variety UDMH-3 also increased agronomic efficiency over local variety with a range of 1.65 to 14.08 kg/kg N, 1.81 to 15,34 kg/kg P and 5.03 to 42.69 kg/kg K and partial factor productivity (PFP) from 38.54 to 50.97 kg/kg N, 42.02 to 55.55 kg/kg P and 116.87 to 154.53 kg/kg K. Among fertility levels, maize grain yield increased significantly by increasing fertilizer dose to 100% RDF (60:40:20 kg NPK/ha) (47.83 q/ha) as compared to maize crop receiving no fertilizer input (35.79 q/ha) and 75% RDF. The benefit:cost ratio was highest at 125% RDF with net returns of Rs. 40782/ha closely followed by 755 RDF with B:C ratio of 2.19 and net returns of Rs. 39539/ha. Again highest agronomic efficiency of 12.54 kg of grain/kg of N, 13.53 kg of grain/kg of P and 37.63 kg of grain/kg of K was obtained with 100% RDF. However, 75% RDF was highly energy and nutrient efficient on the basis of partial factor productivity as compared to other fertility levels.
机译：在查mu和克什米尔温带农业气候区的Krishi Vigyan Kendra，Bhaderwah，Doda的试验农场进行了试验，评估了六个玉米品种，即V 1 ：当地品种， V 2 ：UDMH-3，V 3 ：UDMC-3，V 4 ：UDMC-4，V 5 ：UDMC-1和V 6 ：C-8，以及四个生育水平，即F 1 ：对照，F 2 ：75 RDF（60:40:20 kg NPK / ha），F 3 的百分比：100％RDF（60:40:20 kg NPK / ha）和F 4 ：在雨养条件下RDF的生产率，利润率，能量和养分利用效率的125％。实验以阶乘随机区组设计进行，使用24种治疗组合重复三次。杂交品种UDMH-3提前12天成熟，与当地品种相比，谷物产量提高了32.2％，收益/成本比提高了53.2％。它还具有很高的能源效率，能量输出：输入比为20.15％，能量生产率为0.50 kg M / J。 UDMH-3改良品种的加入也提高了当地品种的农艺效率，氮素含量范围为1.65至14.08 kg / kg，磷素范围为1.81至15,34 kg / kg钾，分系数生产率为5.03至42.69 kg / kg（PFP） ）从38.54至50.97 kg / kg氮，42.02至55.55 kg / kg磷和116.87至154.53 kg / kg钾。在肥力水平中，通过将肥料剂量提高至100％RDF（60:40:20 kg NPK / ha）（47.83 q / ha），相比之下，未施肥（35.79 q / ha）和75％RDF的玉米作物。收益：成本比最高，达到125％RDF，净收益为Rs。 40782 /公顷紧随其后的是755 RDF，B：C比为2.19，净收益为Rs。 39539 /公顷。使用100％RDF的最高农艺效率分别为12.54 kg谷物/ kg N，13.53 kg谷物/ kg P和37.63 kg谷物/ kgK。然而，与其他生育水平相比，基于部分因子生产力的75％RDF具有很高的能量和营养效率。

著录项

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号