Datt N.,CSK HP Krishi Vishvavidyalaya |
Sood B.R.,Forage and Grassland management |
Kumar N.,Forage and Grassland management |
Sharma V.K.,CSK HP Krishi Vishvavidyalaya
Range Management and Agroforestry | Year: 2012
A field experiment was conducted to study the effect of improved grasses and legumes and fertilization on the productivity, nutrient uptake, soil fertility buildup and biological properties of pasture at Highland Research and Extension Centre, Kukumseri, Lahaul & Spiti (Himachal Pradesh). Planting of introduced high yielding grasses registered a green fodder yield increase of 10.08 tonnes (t) over local system, introduced high yielding legumes 8.20 t, introduced grasses + legumes 12.81 t, introduced grasses +legumes +shrub 13.29 t, grasses + legumes + shrub + fodder tree 13.17 t per hectare. The green forage production was maximum with planting of high yielding grasses + legumes + Salix and was followed by high yielding grasses + legumes, high yielding grasses and least was in the local grasses. Soil moisture was higher in improved system than the local system. Fertilization proved effective in increasing the moisture content and also herbage production over no fertilization application. Soil pH was not affected by planting of different improved species, however fertilization brought about a slight decrease in soil pH. Soil organic carbon content decreased with fertilization, while an increase was noticed with the introduction of high yielding grass and legume species. Nitrogen (N), phosphorus (P) and potassium (K) uptake increased with fertilization as well as the planting of introduced forage species. The activities of phosphatase and dehydrogenase enzymes also increased with fertilization and introduction of species.
Rana R.,Forage and Grassland management |
Badiyala D.,Forage and Grassland management
Indian Journal of Agronomy | Year: 2014
A field experiment was conducted during the rainy (kharif) season of 2010 and 2011 at Palampur, Himachal Pradesh to study the effect of organic manures and fertility levels on seed yield, quality and nutrient uptake of soybean [Glycine max (L.) Merr.) seed. The experiment, consisted of 12 treatment combinations of 4 organic manures, viz. control, farmyard manure (FYM) @ 5 t/ha, vermicompost @ 2.5 t/ha and FYM @ 2.5 t/ha + vermicompost @ 1.25 t/ha, and 3 fertility levels, viz. control, 50% recommended dose of fertilizer (RDF) and 100% RDF. The use of FYM @ 2.5 t/ha + vermicompost @ 1.25 t/ha resulted in significantly the highest seed (1.82 t/ha) and straw yield (3.25 t/ ha) as compared to application of vermicompost @ 2.5 t/ha and FYM @ 5 t/ha alone. The 100% RDF resulted in significantly the highest seed (1.59 t/ha) and straw yield (3.14 t/ha) as compared to 50% RDF and the control. Significantly the highest number of pods/plant and grains/pod were recorded with the application of FYM @ 2.5 t/ha + vermicompost @ 1.25 t/ha compared to sole application of vermicompost @ 2.5 t/ha, FYM @ 5 t/ha and the control. Application of FYM @ 2.5 t/ha + vermicompost @ 1.25 t/ha recorded significantly highest oil content (18.9%), oil yield (343.9 kg/ha), available nutrients and NPK uptake. Use of 100% RDF also recorded significantly highest oil content (19.7%), oil yield (310.2 kg/ha) and NPK uptake followed by 50% RDF and control. © 2014, Indian Society of Agronomy. All rights reserved.