METHOD FOR CULTIVATION OF POTATOES WITH TRICKLE IRRIGATION Russian patent published in 2011 - IPC A01B79/02 

FIELD: agriculture.

SUBSTANCE: invention relates to the field of agriculture. The method includes selection of a preceding crop, tillage of topsoil and subsurface horizon for the depth of 0.40-0.45 m, application of organic fertilisers at the norm of 60-80 t/ha, real tillage to close stubble remains and organic fertilisers for the depth of 0.22-0.25 m. Disking of the upper layer is carried out by heavy disk harrows for the depth of 0.12-0.16 m while moving along centre ridges. Ridges of trapezoidal shape with height of 0.16-0.22 m are formed in the last decade of September. Prevernal correction of ridges is made with rotor or mill cultivators. Cold-resistant weeds are removed in the phase of "white threads". Seed tubers are vernalised with biostimulants and inhibitors of causal agents. Tubers are planted on top of ridges, and mineral fertilisers are applied. Flexible watering pipelines of trickle irrigation system are laid. Row-to-row cultivation, vegetation watering, weeds control in spaces between rows and on ridges are carried out. Tubers are protected against wireworm, and vegetative mass - against Colorado beetle. To gather guaranteed harvest of 80 t/ha of tubers, mineral fertilisers N₃₅₀P₇₀K₃₀₀ kg of reactant/ha are applied fractionally with irrigation water by means of the trickle irrigation system in the main phonological phases. From appearance of sprouts to start of generative organs (buds) formation, the following is added into ridges - nitrogen, 32-35% of the rated value of 350 reactant/ha, phosphorus, 20-30% of the rated value 70 kg of reactant/ha, potassium, 5-8% of the rated norm 300 reactant/ha. From appearance of buds to blooming, the following is added to root systems of potatoes - nitrogen, 43-60% to form a strong leaf and stem mass, phosphorus, 40-45% to form creeping stems and tubers, potassium, 22-28% to produce whole tubers. From blooming to withering of plant tops, nitrogen is added, 10-13% to maintain plant tops in optimal condition, phosphorus 22-28% to produce even tubers with whole complex of nutrients and keeping capacity of tubers, potassium 63-64%.

EFFECT: method makes it possible to increase consumer properties of potato tubers and to reduce content of toxic substances in them.

6 cl, 6 tbl