Sowing Quality Indicators for a Seed Drill With Overpressure

Abstract

The main goal of sowing is the distribution of seeds at an optimal depth with adequate seed spacings. The results of the optimal sowing, in both horizontal and vertical directions, are better germination and sprouting, as well as increased yield and reduced infl uence of plants on each other's space for growing, regarding the available light, nutrients and moisture. Quality of horizontal and vertical seed distribution is infl uenced by the distance between rows, sowing depth, pre-sowing preparation, seed drill, seeding mechanism, sowing density, and operator's skills. The arithmetic mean of spacing (Am), standard deviation for spacings between the plants (SD) and coeffi cient of variation (CV) are usually used for representation of sowing evenness. Assuming that the seeds are of good germination quality, the yield is directly dependent on the sowing quality and organization of plants per unit of surface area. A well prepared plot was sown with 20 corn seed hybrids from diff erent FAO maturity groups. The sowing was performed with precision pneumatic seed drill INO Becker Aeromat 2, which ejects individual seeds by using the overpressure.A er sprouting, no statistically signifi cant diff erences were found between the sowing of hybrids from diff erent FAO maturity groups and their characteristics. When the yield is concerned, biological characteristics of hybrids are much more infl uential than the quality of sowing. This is true only if the tractor implement for wide row planting is properly adjusted.

Effect of Sowing Methods on the Yield and Yield Components of Wheat Under Two Seed Rates at Sulaimani Region

“…Usually standard deviation of plant spacing (SD) and coefficient of variation (CV) are used to represent the seeding equilibrium. Resulting in good germination quality, the yield will directly depend on the quality of sowing and plant organization per unit of surface area, (30). The Coefficient of Variation (CV) is an indicator measurement of how uniformity the granular distributes; Better spreaders should have both a low CV less than 5% and a good basic spread patternand these should be verified by an independent test conditions in test halls.…”

Mathematical Model of Uniform Cereal Crops Seeding Using a Double-Disk Coulter

“…It was experimentally established that, during the fall of seeds with weight of 0.04-0.05 g to the distribution plate with rubber-coated pins at a height of 0.7 m, drag and friction coefficients of 0.2-0.3, impact force less than 5 N, acceleration of 0.025 m•s -2 , working body tilt angle to the soil surface of up to 30-45°, and an approximate value of e ≈ 2.718, the actual movement speed of seeds will be 3.0-3.5 m•s -1 , seed microtrauma will be close to minimum (2.5-2.9%), and uniformity of distribution to furrow bottom after sowing will be equal to 94-95% and higher if sown in the form of strips, not rows. In such manner, there will be positive conditions for germination, growth and development of plants during the growing season, which will ensure the rational use of water, fertilizers, solar energy and formation of high and quality crops (Turan et al, 2014).…”

“…Multiple scientist (Prisyazhnyuk, 2013;Turan et al, 2014;Turan et al, 2015;Vasylkovska et al, 2016;Pylypaka et al, 2018) have dealt with the proposition of fundamental scientific foundations for the theory of mutual influence of working surfaces of mechanisms and seeds in order to find the optimal parameters of their work.…”

Qualitative indicators planting corn fao 600 and fao 700

“…2010). Na uniformnost distribucije semena u redu osim setvenog aparata utiĉu i brzina setve, podešenost i funkcionalnost sejalice, teren, predsetvena priprema, oblik i veliĉina semenskog materijala... (Findura et al 2012;Turan, 2011, Turan 2014.…”