News Update on Agronomy Research: Jan – 2020

Agronomy of White Clover

This chapter focuses on agronomy of dutch clover (Triflium repens L.). dutch clover is that the most vital pasture legume in temperate zones of the planet . it’s useful due to its wide climatic range, the high nutritional quality and digestibility of its herbage, and therefore the significant contribution it makes to the economy of grass/white clover pastures by fixation of atmospheric nitrogen, especially within the absence of fertilizer nitrogen. dutch clover is generally described as a creeping, much-branched perennial. dutch clover grows on roadside verges and in natural pastures throughout the planet where climatic and soil conditions are suitable, but it’s seeded deliberately in pastures mainly in North America, New Zealand, and northern Europe . dutch clover is employed principally as a component of mixed grass/clover swards, which are usually grazed in place. [1]

The Biology and Agronomy of Switchgrass for Biofuels

Switchgrass (Panicum virgatum L.)—a perennial, warm-season (C4) species—evolved across North America into multiple, divergent populations. The resulting natural variation within the species presents considerable morphological diversity and a good range of adaptation. The species was adopted as a crop—initially as a forage—only within the last 50 yr. Its potential uses have recently been expanded to incorporate biofuels. Management of switchgrass for biofuels is informed by an understanding of the plant’s biology. Successful establishment requires attention to seed dormancy and weed control also as proper depth and date of planting. The plant’s rate of growth is closely tied to temperature, but timing of reproductive development is linked to photoperiod. Accordingly, the amount of vegetative growth are often extended by planting lower-latitude cultivars at higher latitudes. This strategy may provide a yield advantage, but cold tolerance can become limiting. Switchgrass is thrifty in its use of applied N; it appears ready to obtain N from sources that other crops cannot tap. [2]

Guar: agronomy, production, industrial use, and nutrition.

Guar (Cyamopsis tetragonoloba), an annual Old World legume, is now being grown as a billboard crop for industrial gum and protein. Most of the known facts about guar are collected during this book. The history of guar, its taxonomy and cytogenetics, current world production, breeding, genetics, physiology, protection from diseases, production, structure of guar endosperm polysaccharide, the uses of gum and its nutritive value and food use are discussed. [3]

South American Congress of Research Workers in Agronomy

APPROXIMATELY 300 research workers are expected to participate within the first South American Congress of Research Workers in Agronomy, of whom some 220 will represent Argentina, Brazil and Uruguay and therefore the refore the remainder will come from the opposite South American countries and the us. The Congress are going to be held during November 13-19, and therefore the forum are going to be the Experiment Station of los angeles Estanzuela in Uruguay, suitable alike for its relatively central position and for the signal services it’s rendered to South American agricultural research. Five sections will discuss (1) climate and soil, or general ecological questions ; (2) crops and herbage husbandry ; (3) farming ; (4) the industrialization of agricultural products ; and (5) agriculture and therefore the man, or rural sociology and economics, including marketing problems. [4]

Energy Evaluation of Maize (Zea mays L.) under Irrigated and Un-irrigated Conditions. Division of Agronomy-SKUAST Kashmir

Data with reference to yield was taken from Ph.D student Division of Agronomy Shalimar Campus of Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir Experiment was conducted during 2012 and 2013 under irrigated and un-irrigated mulched conditions with the target to review the expansion and yield of maize at different planting dates and planting density and to simulate trends of maize production. Experiment was laid in split-plot design assigning four planting dates 15th April, 30th April 15th May and 30th May to main plots and three planting density 50 cm × 20 cm, 60 cm × 20 cm and 70 cm × 20 cm to sub-plots. Maximum energy was consumed in irrigated conditions as compared to Unirrigated mulch conditions i,e 14805 MJ and 13034 MJ respectively. Irrigated maize sowing on 15th April gives highest net returns of Rs.126740 with a B: C ratio of two .18 was recorded with 50×20 cm spacing which was followed by 60×20 cm with net returns of Rs.87170. [5]

Reference

[1] Frame, J. and Newbould, P., 1986. Agronomy of white clover. In Advances in agronomy (Vol. 40, pp. 1-88). Academic Press. (Web Link)

[2] Parrish, D.J. and Fike, J.H., 2005. The biology and agronomy of switchgrass for biofuels. BPTS, 24(5-6), (Web Link)

[3] Whistler, R.L. and Hymowitz, T., 1979. Guar: agronomy, production, industrial use, and nutrition. Purdue University Press. (Web Link)

[4] South American Congress of Research Workers in Agronomy
Nature volume 164, (Web Link)

[5] Ahmad Lone, B., Ahmad Dar Asma Fayaz, Z., Singh, P., Qayoom, S., Singh, G. and Kumar, S. (2017) “Energy Evaluation of Maize (Zea mays L.) under Irrigated and Un-irrigated Conditions. Division of Agronomy-SKUAST Kashmir”, Journal of Economics, Management and Trade, 16(3), (Web Link)

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