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Herbage yield of four grasses in sodic soil under silvipastoral production system

机译：林业生产体系下苏打土壤中四种草的牧草产量

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摘要

The eastern Uttar Pradesh commonly called as 'Purvanchal' encompasses 25 districts of Indo-Gangetic Plain. The region abunds rich alluvium transported by river Ganges and its tributories, however, a sizeable area (167833 ha) is rendered unutilized due to sodic and other wasteland problems (Parihar and Rana, 1996). Sodic soil has usually high pH (9.5 to 10.5) with hard kankar pan within 1 m soil depth. Without proper amelioration such soil is not considered fit for agriculture and not put to any useexcept for grazing. There is an acute shortage of fodder in the region, if such lands are devoted to forage production, the problem of forage searcity can be mitigated. Better spatiotemporal use in silvipastoral system with forage as inter-crops has been documented by several workers in northern India (Deb Roy et, al. 1980; Harsh et. al., 1992; Singh and Roy, 1991). However, the information on sodic soil is meagre under rainfed condition. In view of this, the present study was designed to investigate comparative forage yield potential of four stress tolerant perennial grasses raised in association with Dalbergia sissoo (tree species) on sodic soil. In this study, D. sissoo is a leguminous nitrogen fixing tree species (NFT), with potential to improve soil fertility.
机译：北方邦东部通常被称为“ Purvanchal”，涵盖印度-恒河平原25个地区。该地区有丰富的恒河及其支流运来的冲积物，但是由于苏打和其他荒地问题，相当大的面积（167833公顷）未被利用（Parihar和Rana，1996）。钠盐土壤通常具有较高的pH值（9.5至10.5），且在1 m的土壤深度内具有坚硬的坎卡锅。如果没有适当的改良，这种土壤就不适合农业生产，除放牧外不得用于其他用途。该地区的饲料严重短缺，如果这些土地专门用于牧草生产，就可以减轻牧草的稀缺性问题。印度北部的几名工人已经证明，在草食系统中以草料作为农作物可以更好地进行时空利用（Deb Roy等，1980; Harsh等，1992; Singh和Roy，1991）。然而，在雨养条件下，钠盐土的信息很少。有鉴于此，本研究旨在调查与苏打黄檀（树种）相关的四种耐旱多年生草的比较牧草产量潜力。在这项研究中，Ds sissoo是一种豆科固氮树种（NFT），具有改善土壤肥力的潜力。

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