Assessment of Soil Physico-Chemical Properties of Sugarcane Research Program, Jitpur, Bara, Nepal.

Evaluation of soil fertility status of Regional Agricultural Research Station, Tarahara, Sunsari, Nepal

“…This farm is more sustainably running than the majority of the terai regions farms of NARC. Because the organic matter content is satisfactory than most of the others (Khadka et al, 2016b;Khadka et al, 2016d;Khadka et al, 2017). The farm should run more consistently as adopted present practice for organic matter improvement in the future.…”

“…Available iron showed high variability (72%) among the soil samples. The iron content is high in the most of the terai region of Nepal (Khadka et al, 2015;Khadka et al, 2016a;Khadka et al, 2016b;Khadka et al, 2017). The very high availability of iron might be due to high possibility of primary and secondary iron minerals like hematite, olivine, siderite, goethite, magnetite etc (Das, 2000).…”

Soil Fertility Assessment and Mapping of Agricultural Research Station, Jaubari, Illam, Nepal

“…Sulphur is also a major limiting elements in the different research domains of Nepal Agricultural Research Council (Khadka et al, 2016a;Khadka et al, 2016b;Khadka et al, 2016d;Khadka et al, 2017).The available sulphur varied from 0.03 to 7.01mg/kg with a mean of 0.59mg/kg (Table 5). This indicates very low available sulphur status ( Figure 11; Table 7).…”

“…High leaching loss of sulphate ion due to high rainfall and sloppy land might be the cause of low sulphur. The Boron plays important roles in plants for sugar transport, cell wall synthesis, lignification, cell wall structure integrity, carbohydrate metabolism, ribose nucleic acid (RNA) metabolism, respiration, indoleaceticacid (IAA) metabolism, phenol metabolism, and acts as part of the cell membranes (Gupta et al, 2011).Boron deficiency has been identified as a serious agricultural issue in more than 100 crops in 80 countries (Shorrocks, 1997).Moreover, boron is a major limiting elements in the different research domains of Nepal Agricultural Research Council (Khadka et al, 2016a;Khadka et al, 2016b;Khadka et al, 2016d;Khadka et al, 2017).The available boron ranged from 0.01 to 4.39mg/kg with a mean of 0.26mg/kg (Table 5). This indicates very low content of available boron ( Figure 12; Table 7).…”

“…Soil fertility of an area declines periodically due to various natural and human influenced factors. The inadequate soil fertility is a major constraint for sustained agricultural development in different sites of Nepal (Khadka et al, 2016a;Khadka et al, 2016b;Khadka et al, 2016c;Khadka et al, 2016d;Khadka et al, 2017).…”