Sulphur, phosphate, and molybdenum coating of legume seed

Abstract

The development of additional S, P, and Mo coating on rhizobia-coated legume seed for sowing in tussock grassland is described. The main response was to additional S, as elemental S, which approximately doubled establishment in coatings of 50--100% increase relative to bare seed weight. The effect was greater when seed was sown into existing vegetation than into cultivated soil, and on brown-grey soils. Response to phosphates was smaIIer and less consisteDt with coatings of 50--100%, and Calciphos and reverted super· phosphate were better than Gafsa phosphate. Responses to types or levels of Mo were generally not significant. Manufacturing problems are discussed.

Modification of Seed Germination Performance through Cold Plasma Chemistry Technology

“…This may explain the superior germination of seeds treated with aniline plasmas, although we do not have direct evidence that amine groups accelerate germination. Acceleration in germination may improve early plant growth, as has been found for sulfur phosphate and molybdenum‐coated legume seed (Scott and Archie, 1978) and for phosphate‐treated grass seed (Silcock and Smith, 1982) For both aniline‐ and hydrazine‐treated seeds there are limitations to the amount of nitrogen that could be applied via plasma treatment, and its usefulness would likely primarily pertain to a very early augmentation in plant nutrition. Since micronutrients are required in substantially lower concentrations compared with macronutrients, such as nitrogen, it may be advantageous in future studies to incorporate micronutrients in the plasma coating.…”

“…In other instances, delayed germination has been investigated through retardation of imbibition to prevent inhibitional chilling damage of seed sown in a cold, wet soil (Priestly and Leopold, 1986; Taylor et al, 1992). Other seed technologies have focused on the application of macro‐ or micronutrients or beneficial bacteria to improve early plant growth (Scott and Archie, 1978; Glick, 1995; Bashan, 1998). To enhance nutrient uptake, some investigators have treated seeds with beneficial microorganisms that can proliferate on the seed and improve nitrogen fixation (Tonkin, 1984; Kanvinde and Sastry, 1990).…”

Application of molybdenum to inoculated, lime-coated white clover seed

“…There is no evidence from the present experiment of an enhanced Mo uptake from seed-applied Mo compared with fertiliser Mo. Scott & Archie (1978) cautioned against the use of Mo on pelleted seed. They had observed on yellow-brown earth soils in the Mackenzie Basin a few instances of sodium molybdate being significantly depressive on seedling establishment within 2 months of sowing but not later.…”

“…Scott & Archie (1978) expressed the need for caution in adding Mo to inoculated, coated (pelleted) seed because of the possibility of an adverse effect on early seedling establishment. Soluble Mo compounds (e.g., sodium molybdate) applied in the coating material can also reduce survival of rhizobia on the seed and hence reduce seedling nodulation (Gault & Received 19 February 1987;revision 19 May 1987Brockwell 1980.…”

Ekim öncesi tohumlara Zn ile ön uygulama ve tohum kaplamanın buğdayda çimlenme ve fide gelişimine etkileri

“…The term of seed coating is used to denote the application of a useful material(s) to the seed without changing its general size and shape (Taylor and Harman, 1990). Macro-and micronutrients have been applied to seed in seed coating and revealed positive effects to improve early plant growth (Scott and Archie, 1978;Scott et al, 1987). However, seed coating has effectively improved production of many crops like barley (Zeļonka et al, 2005) and rice (Tavares et al, 2012).…”