Chen haidong
(kessan county agricultural science and technology promotion centre, heilongjiang province 161,600)
Potatoes occupy an important place in people's lives as important food crops, cash crops and processed raw materials. In recent years, the cultivation of potatoes has maintained the momentum of high productivity and steady production, leading to the promotion of standardized cultivation of potatoes. The following is a brief introduction to high-quality high-yielding techniques for the cultivation of potatoes in large sheds:
I. Selection, landscape, fertilization
The choice is to have easy transportation, to have abundant groundwater resources and to grow potatoes on plots that facilitate transport, sale and storage. The growth and development of potatoes is less demanding for soil alkalis, but there is a high demand for the pore of the soil and the clay is not suitable for the cultivation of potatoes, so the choice should be made for the high level of dryness, laxity and deepness of the soil or sandy soil. The inappropriateness of potatoes, especially with root crop rotations such as beet, increases the probability of pests and diseases occurring. First, it is extinguished, usually as deep as 40 centimetres, then dredged to fine, loose, soft, with no big bumps, high rises and 70 centimetres wide. The main objectives are to improve soil permeability, improve soil resilience to drought, reduce potato malformations and improve the quality of potato products. Potatoes are potassium-skinned crops that are sensitive to fertilizers, with 1. 5 cubic metres of farm-based fertilizer per acre used and a single application of urea, ammonium phosphate and potassium sulphate combined with a small amount of organic fertilizer to separate them。
Ii. Selection of varieties
Depending on the ecological characteristics of the region and the different uses and market needs, it is necessary to select high-yield, disease-resistant and good quality potatoes。
Iii. Preparation for broadcast
Potato slices
Cultivation can facilitate the exchange of oxygen both inside and outside the tuber, break hibernation, early germinate and seedlings. Cuts must be strictly disinfected in order to prevent disease. Prevention and treatment causes degenerative species, shortage of seedlings or increased field morbidity, and accelerates the degradation of varieties
