Getting fully developed and healthy plants is very important for a high yield of vegetable crops.Unfortunately, the manufacturer can not always control the factors that hinder the development of plants, such as covering the soil crust, temperature changes and excessive soil moisture.However, it is possible to minimize or to overcome the effects of climatic and biotic factors with proper planting.
Uniformity interval between seeds and uniform depth of seeding are important indicators of the quality of the hay and its performance.Studies have been conducted to assess the quality of the vegetable precision seeders, their earthing devices and press wheels at planting several kinds of vegetables.
Uniformity sowing
Two types of vegetable planters: pneumatic conveyors and were evaluated for uniformity of seeds with selection of the five kinds of vegetables.Cultures were submitted to various forms of seed range: circular or nearly circular (cabbage and onions), versatile (spinach), elongated and flat (carrots and cucumber).Band sowing showed good uniformity of seeding round (cabbage), or almost circular (bow) seeds and vegetable pneumatic drills Top sowing the seeds of an elongated and flat shape (carrots and cucumber).However, none of these types of drills could not ensure a perfect uniformity of sowing seeds of carrot, cucumber and spinach.
In general, tape drills showed better uniformity and accuracy, particularly with seeds of round or almost round shape.When sowing seeds of elongated and polyhedral observed counterparts and varying intervals between seeds.
earthing devices and press wheels
component manufacturers vegetable pneumatic drills and belt sowing several types of press wheels (steel, rubber, mesh) and earthing devices (standard, light, double).The test results showed no large differences in the yield and cabbage mustard by using various kinds of press wheels and earthing devices in the event that they are properly selected and seed furrow closing and compacting was qualitative.General advice on the correct selection of press wheels and earthing devices are as follows: for clay and wet soil better suited packer wheels of rubber and standard earthing devices for heavy and compacted soil - steel wheels and dual earthing devices and for light and sandy - mesh wheels and light zaogtrachi.
However, sowing without earthing devices with any type of press wheels leaving a furrow open and the seeds are not embedded in the soil.
Planting depth and types of openers
Sustainable development of agricultural plants is largely determined by the proper planting depth, which is typically three seed diameter.However, with very small seeds such as mustard and cabbage, this recommendation may lead to a very shallow depth of planting and the risk of washout of seed rain.Moreover, the dry surface soil can reduce seed germination.Both of these problems can be solved by changing the depth of seeding.
were evaluated two types of openers: two-line and broadband seeding.Two-opener distributes seeds in two rows with a distance of 5 cm between them and the opener for broadband sowing - strip width of 8 cm. A larger number of seedlings observed in areas where planting was carried out a two-line opener than broadband seeding.This is due to a problem with the opening and closing of the furrow opener broadband, which forms a broad band and randomly distributes the seeds of its base.Standard earthing devices close the furrow with soil, which can move some seeds.In addition, the depth of sowing coulters this type are difficult to control.
