Soroka L. Elements optimization of the field-seeded rocket salad and thin leaf cross weed growing technology on the right bank of the Forest steppe of Ukraine

The current dissertation is devoted to the development of growing technology elements of field-seeded rocket salad and thin leaf cross weed on the right bank of Forest steppe of Ukraine. There were summarized the innovative elements efficiency of the technology and discovered new approaches in the field-seeded rocket salad and thin leaf cross weed growing with the use of high productive varieties, terms of sowing and compliance with optimal schemes of plants placement in the open ground, which is highly important for vegetable plants distribution. The evaluation of the field-seeded rocket salad and thin leaf crossweed varieties have proved that the highest yield of green mass in conditions of the right bank of the Forest steppe of Ukraine guaranteed by thin leaf crossweed variety Lyudmila - 16.7 t/ha. Due to increase of the plants mass up to 110 gram, the level of profitability made 121 % and the coefficient of bioenergy effectiveness has achieved 1.3. The varieties of the field-seeded rocket salad and thin leaf crossweed have shown the different level of seed productivity and the highest mass of seeds perone plant, there fore the yield of Lyudmila variety made accordingly 2.5 gram/plantand 0.7 t/ha of seeds. It is specified that the early terms of rocket salad and thin leaf cross weed sowing guarantee the high yield of green mass - 15.9-16.2 t/ha. The following terms of sowing guaranteed some what lower yield, though they favored the creation of continue ous receipt of green mass from the ІІІ-rd decade of April until the end of September in collusively. It is advisable to conduct the first hare vesting in 20-25 days after sowing for the early production receipt. It is discovered that for the account of plants density in creasing from 110 until 300 thous. units/ha and reduction of the leaves amount until 6-8 units/plant, al so in crease such parameters of seeds productivity as plants height, amount and length of inflores cences hoots, the overall leafsurface(up to 90.4 thous.m2/ha) and pure photosynthesis productivity (up to 1.8 g/m2 per day). At the same time the sowing schemes of 45х10 sm and (20+50)х10 sm have provided a high yield of the field-seeded rocket salad and thin leaf cross weed green mass of 19.4-21.1 t/ha accordingly. The Levis stability coefficient has point ou that the field-seeded rocket salad and thin leaf cross weed varieties Znahar and Lyudmila are more constant in yield despite of growing conditions in research years (Кst = 1.03-1.06, in comparison with foreign varieties Pasyans and Rocket (Кst = 1.11-1.19). It is approved that them coefficients the field-seeded rocket salad and thin leaf cross weed growing on the sowing schemes 45х10 sm and (20+50)х10 sm, which provide high effectiveness and yield. The coefficient of bioenergy estimation of the growing technology element support es that the difference in energy requirements determined not only by the harvesting and transportation of production but also by the terms of sowing and amount of plants per square unit. The high value of the bioenergy effectiveeness coefficient of the field-seeded rocket salad and thin leaf cross weed production made in dependence to variety 1.3-1.5 at the scheme 45х10 sm.