Seeding Rate

Seeding Rate

 

the number of seeds planted per hectare (ha) to ensure normal density of sprouts and a maximum yield. The seeding rate is expressed by the number of germinating seeds (millions) and the weight of the seeds (kg). It is determined by considering plant requirements for feeding space, the purpose of cultivation (grain, silage), soil fertility, climatic conditions, and other factors. The seeding rate may differ for the same crop. The seeding rate for crops raised for silage is higher than that for crops raised for grain. In northern regions the rate is higher than in the south. For example, a spring-wheat seeding rate of 6–7 million per ha is recommended in the northern regions of the USSR, and a rate of 3.5–5 million per ha is recommended in southern and eastern regions.

The recommended seeding rates are calculated for 100 percent seed purity, so in each particular case an appropriate correction must be made. For example, if the recommended rate is 4 million seeds per ha and the seeds at a particular farm have a purity of 94 percent, the seeding rate for them will be

To calculate the seeding rate by weight in kg, the numerical seeding rate is multiplied by the weight of 1,000 seeds in g. Thus, if 1,000 seeds weigh 40 g, the seeding rate in the specific case mentioned above will be 4.4 million X 40, which equals 176 kg.

M. G. PRUTSKOVA

References in periodicals archive ?
The new equipment will allow the farm to get better seeds, reduce the seeding rate, and, therefore, reduce costs," Vladimir Selikhov explained.
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Response of six- row- barley to seeding rate and weed control methods under moisture stress.
The interaction of seeding rate and N fertilization in the soybean crop, considering cultivar with indeterminate growth habit, has been little studied in Brazil, thus, it is relevant to verify whether there is any interaction between seeding rate and N fertilization that brings agronomic benefits.
Results from two consecutive years showed that the 42 days cutting schedule with 20 kg ha-1 seeding rate and 30 cm row spacing produced significantly more number of stems m-2, green forage and Dry Matter (DM) yields.
When planting on time with high quality seed into unadventurously tilled seedbeds the mark seeding rate is 30 to 35 seeds per square foot.
This experiment was established to determine whether increasing the seeding rate of canola could affect competition from ryegrass, and withstand RLEM attack under a certified organic production system.
Variety was laid in the main plot, seeding rate in the sub-plot and row spacing was laid in the sub-sub plot.
1961) who found that seeding rate of 100 kg ha-1 gave higher yields than lower rates.
Always check the per-acre suggested seeding rate on the bag or at an agricultural extension service or university Web site.
The objectives of this study were to evaluate the effects of barley variety, seeding rate, location and differing rates of nitrogen fertilizer application on the rate and extent of ruminal dry matter disappearance.
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