1. Land selection
The choice is flat, water-preserve fertility and soil fertility plots. It's best to start with wheat, beans, corn, mussels, scrambling and scrambling. Following the harvest, the land was ploughed in time for the fall tilling and the rain was soaked. Precisely in front of the membrane, so that the soil is soaked and sowing quality is assured。
2. Scientific fertilization
The full membrane potatoes are not easy to fatten, so they are to be used as a one-time application of farm fertilizers and fertilizers and are to be concentrated in the cavity before they rise. Specific application criteria: on the basis of 3,000 kg of high-quality farm fat on acre application, fertilizer is selected in one of the following three modes: the first is 50 to 60 kg of urea, the second is urea 20 to 25 kg, phosphorus 50 to 60 kg, potassium sulphate 15 to 20 kg, the third is urea 15 to 20 kg, ammonium phosphate 15 to 20 kg and potassium sulphate 15 to 20 kg。
3. Selected species
The choice is based on high-quality, drought-resistant products such as the cassava series. Tightly selected potatoes before they are broadcasted, the sick chips must be removed, the knives must be cut off, the sick potatoes must be removed when cut, and the potassium perp permanganate solution must be rinsed before they are cut, followed by the immersion of well-cut potatoes with rare-earth drylands to protect against insects, seedlings and increased production。
Four, lift
A rowing machine was used to row 20 cm from the ground, with large lines leaning to the ground, 70 cm wide and 40 cm small lines wide. The one-time application of fertilizer on the surface of a large area is based on the application criteria, followed by ploughing along the lines of the main line, and the ploughing of large bows and bows up and up to 5-10 cm. It's 40 cm wide in the middle of the two bows. In the middle, small bows are formed, taller than five centimetres, each of which corresponds to a small one or two showers. The requirement is to reach the gutter, with a narrow and uniform surface and a uniform ridge. The size is 110 centimetres wide. After the first is finished, then the second is done。
5. Duplicate
The whole area is fertilized and the diaphragm is looted and covered with a 120 cm wide membrane. The membrane and membrane are not emptied and the membrane cover must be attached to the ridge in the middle of the lavender, where the membrane is compacted with fine earth, where the membrane is compacted with the lavender, where the membrane is compacted, and where the membrane is flat and fine enough to meet the criteria of “light, circle”. To protect against the wind, the earth belt is pressed every 2-3 metres. Around a week after the end of the membrane, when the membrane closes to the surface or rains, micro-pores within the gutter every 50 centimetres to allow the catchment energy in the gutter to penetrate the soil in time。
Seeding: it should be broadcast early and in due course, from late april to early may. The first seeding hole was opened with a dot from 10 to 15 centimetres from the gutter side, and the soil was produced, with seed inside. When the second hole was struck, the soil of the second hole was placed into the first hole, with a shovel, covering the first hole, and so on. The distance is about 40 centimetres, 3000 to 3,500 per acre。
(i) shrimp management: before seedlings are released, they are prone to sowing holes in local sheeting, which must be broken in a timely manner. Seeding is followed by regular inspections of seedlings and timely seedlings when holes are misplaced in order to prevent the burning of seedlings, resulting in the loss of seedlings and the timely replanting of seedlings。
(ii) current rheumatism management: in order to collect flowers and tops in a timely manner, the leaves are to be fatted。
(3) large-scale tubing management: appropriate cover on the membrane, lower internal temperature and create a cold soil environment in order to boost the tubing. We're going to get a root fat on the defertilized plot。
(4) night disease control: the central strain was found to be immediately uprooted and buried in depth, with 50 per cent of the tobuzin humid powder, or 58 per cent of the mercuric manganese zinc, or 64 per cent of the venomicide 500 times the liquid smoulder spray, which was sprayed every seven days and two to three times。
8. Accomplishments in due time
When the tubers stop growing, i. E. Two thirds of the leaves turn yellow and the plant begins to die, the harvest should be timely. Waste membranes are removed in time after harvesting to avoid soil contamination。
