Wheat cultivation technology

First, wheat needs fertilizer characteristics

Nitrogen is a component of cellular protoplasm, chlorophyll, and so on. Sufficient nitrogen can promote the growth of wheat roots, stems, and leaves, and increase leaf area and organic accumulation. Nitrogen application at the time of differentiation of the young and stamens can reduce infertility and increase the number of grains.

Phosphorus is an important component of the nucleus and is involved in the synthesis of cells and the normal metabolism of sugar and nitrogen. Wheat is sensitive to phosphorus. Phosphorus deficiency inhibits root development, reduces tillering, leaves dark green and purple, maturation delays, and ultimately reduces grain weight and quality.

Potassium can increase the photosynthetic efficiency, promote the absorption of nitrogen and phosphorus, increase the content of cellulose and lignin in the body, and make the stem tough and resistant. Ensure the supply of potash, but also improve the leaf water potential, leaf water holding capacity, significantly enhance the role of drought.

Second, cultivation technology

1, use fine varieties. According to the requirements of “high yield, high quality, strong disease resistance, and suitable for planting in the region,” the key recommendation is to plant: 76-4, Yunmai 42, Yunmai 53, and Yunmai 56.

2, apply enough base fertilizer. Mushi farmyard fertilizer 1000-2000 kg, formula fertilizer about 40 kg; zinc sulfate 1 kg, before spreading evenly in the preparation, timely deep into the soil.

3, fine soil preparation. The quality of soil preparation is directly related to the quality of sowing. The plots often planted with rotary tillage or no-tillage machines must be deep-turned (about 25 centimeters) once for more than 3 years; straws that are returned directly to the field must be finely crushed, and long-lasting straws should be removed, and 1 mu of straw should be returned to the field for 2 mu. During the preparation of soil preparation sites, the land must be smashed and smashed through, so that the depth of the arable land is consistent, the topsoil is finely crushed, and the culmination of the virtual reality is achieved.

4, seed treatment. Undressed seed should be treated for pest control. The higher quality seed coating agent or single seed dressing can be used. The single-dose control disease can use diniconazole, dofforone or carbendazim for 0.2% of the seed amount. Seed dressing; Prevention of underground pests can be used 3911 or phoxim seed dressing according to 1.5% of seed dressing.

5, appropriate sowing. The suitable sowing date is from 5 to 13 October. The sowing depth is 4-5 centimeters. The sowing amount is appropriately increased in the late sowing plots, and the average row spacing of wheat is 22.5 centimeters. After sowing, compaction is done with Dendrobium to facilitate the emergence of wheat. Straw returned to the field increased 1.5 kg sowing volume.

6, before winter and spring water and fertilizer. The principle is to stabilize nitrogen, increase phosphorus, supplement potassium and trace fertilizer on the basis of increasing organic fertilizer. The application of organic fertilizer before winter is an important measure to ensure the smooth wintering of wheat and prevent freezing and drought in the early spring. When the relative soil moisture content is more than 65% before winter, the antifreeze water may be poured. When it is less than 65%, the frozen water shall be poured well, and the loose soil shall be timely scratched after pouring so as to prevent the ground from cracking, and the wind will damage the root and cause dead seedlings. After winter, topdressing, poor land plots should be applied twice fertilizer, the first time in the return period of wheat, you can choose the total content of ≥ 40% (35-0-5) formula fertilizer or topdressing urea, 20-25 per mu Kilogram; when the booting spikes the second time, the second panicle fertilizer can be applied to 7-8 kilograms of urea; the medium-high yield field should be moved to the jointing stage after applying fertilizer time, and the total content can be ≥40% (35-0-5). Formula fertilizer or urea, 20-25 kg per mu. Water well, joint water and grouting water in a timely manner.

7, chemical weeding and wheat control. Before jointing, wheat has the strongest drug resistance, and it can be sprayed with chemical agents such as wheatgrass net to chemically weed the grass. In order to prevent wheat from becoming long and late lodging, paclobutrazol can be used for chemical control. When the temperature of the above-mentioned chemicals is too low, they should be disabled so as not to affect the effect. After the jointing period, they are disabled to avoid phytotoxicity and affect the wheat.

8, outside the top dressing. The absorption ability of the roots in the late wheat is getting worse and worse. The foliar fertilization can be carried out at the flowering stage in time to promote the robustness of the plants, enhance the light and ability of the leaves, and increase the resistance to diseases and dry heat of wheat. Potassium dihydrogen phosphate and zinc sulfate can be used. Foliar spraying, spraying again every 7 days. Http://

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