...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Indian Journal of Soil Conservation >Effect of integrated nutrient management on soil physical and hydraulic properties in rice-wheat crop sequence in N-W Himalayas.
【24h】

Effect of integrated nutrient management on soil physical and hydraulic properties in rice-wheat crop sequence in N-W Himalayas.

机译：喜马拉雅西北地区稻麦作物序列中养分综合管理对土壤物理和水力特性的影响。

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

A field experiment was conducted at CSK HPKV, Palampur (Himachal Pradesh, India), in a silty clay loam soil from rabi 1999/2000 to kharif 2001 under irrigated conditions in a randomized block design replicated thrice. Treatments include five sources of organic manure and three fertilizer levels (50, 100 and 150% of recommended NPK) in wheat along with one absolute control, while rice was grown with 100% recommended NPK fertilizers except for the absolute control to study the residual effect of integrated nutrient management of preceding wheat crop on soil physical and hydraulic properties and yield of succeeding rice. Various organic manures and increasing levels of fertilizer application significantly improved the yield of wheat and rice. Application of various organic manures in wheat resulted in the reduction of bulk density of the soil. In general, bulk density was quite lower in farmyard manure (FYM)-supplied plots and higher in berseem (Trifolium alexandrinum) green manured plots. There was a significant improvement in soil physical properties like soil moisture content after harvest of each crop, soil water retention and plant available water capacity (PAWC). Saturated hydraulic conductivity at various crop growth stages when FYM was applied at 10 t ha-1 to wheat followed by berseem green manuring+FYM, mushroom spent compost+FYM, mushroom spent compost and berseem green manuring, respectively. Increase in fertility levels from 50 to 150% of recommended NPK supplied to wheat crop resulted in the decline in bulk density of the soil in each crop. A significant improvement in soil moisture content at harvest of both wheat and rice: soil water retention at different suction values, as well as PAWC during experimentation was observed with increase in fertilizer levels. In the present study, integrated use of FYM at 10 t ha-1 alone or in combination with other locally available organics along with 150% of recommended NPK in wheat and 100% of recommended NPK in rice improved the productivity, soil physical properties as well as soil hydraulic properties in wheat-rice crop sequence in north western Himalayas.
机译：在灌溉条件下，在随机条件下，以三次重复的块状设计，在灌溉条件下，从狂犬病1999/2000到哈里夫2001的粉质粘土壤土上，在Palampur的CSK HPKV进行了田间试验。处理方法包括小麦的五种有机肥来源和三种肥料水平（建议氮磷钾的50％，100％和150％）以及一种绝对控制，而水稻采用100％建议氮磷钾肥进行种植，但绝对控制除外以研究残留效应。小麦前期综合养分管理对土壤物理和水力特性及后代水稻产量的影响各种有机肥料和不断增加的肥料用量显着提高了小麦和水稻的产量。小麦施用各种有机肥料导致土壤堆积密度降低。通常，在农家肥（FYM）提供的地块中，堆密度较低，而在绿化（berois）（Alexitririnumum）绿地中，堆密度较高。土壤物理特性得到了显着改善，例如每种作物收获后的土壤含水量，土壤保水率和植物有效水量（PAWC）。在小麦上施以10t ha -1 的FYM之后，分别进行berseem绿肥+ FYM，蘑菇废堆肥+ FYM，蘑菇废肥和berseem绿肥，在不同作物生长阶段的饱和导水率。向小麦作物提供的建议氮磷钾肥水平从50％提高到150％，导致每种作物的土壤容重下降。小麦和水稻收获时的土壤水分含量都有显着改善：随着肥料含量的增加，观察到不同吸力值下的土壤保水量以及实验期间的PAWC。在本研究中，单独使用FYM或与其他当地有机物组合使用10 t ha -1 的FYM以及小麦中150％的推荐NPK和稻米中100％的推荐NPK均可改善喜马拉雅西北部小麦-水稻作物序列的生产力，土壤物理特性和土壤水力学特性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
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