The jointing period is the most vigorous growth period in wheat life, and it is also the critical period for the formation of yield. The management focuses on the promotion of weak and prosperous control, and strives to achieve sufficient production and lay the foundation for the high yield of wheat.
1. Fertilizer and water co-ordination. The jointing stage is the vegetative and reproductive growth stage. The organs such as roots, leaves, pods, stems, and panicles grow in an all-round manner. The population and individuals develop rapidly. The growth of the plants is large. The tillers gradually become panicles, and the differentiation and development of floret lays the number of grains per ear. The basis for this is the key period for determining the number of ears per mu and the number of grains per ear. (1) Watering. It should be suitable for the seedlings. Last autumn, when there was much rain and the bottom was full, most of the wheat fields were not irrigated with cold water, combined with warm winters and low precipitation, the soil was heavy and needed to be watered early. The wheat field that has been poured with frozen water can be poured and watered in spring (about April 5). The second water is poured during the flowering period. (2) Dressing. Nitrogen fertilizer combined with spring water one-time topdressing, Mushi urea 15 ~ 20 kg. The late deferred wheat field combined with pouring head and flower water, Mushi urea 10 kilograms.
2. Control pests and diseases. Mainly wheat bran, wheat spider, rust, powdery mildew, sheath blight, head blight and so on. Achieve early prevention and control of targets. Rhizoctonia cerealis 5% Jinggangmycin aqueous solution 100 ~ 150 ml, water 50 ~ 70 kg, sprayed on the stem base of wheat; wheat spider sprayed with 0.9% abamectin 3000 times spray; wheat bran with 50 The amount of mist can be as much as 8 to 10 grams of spray per acre; the midge of the wheat is about 70% of the field heading, with 50% phoxim 50 to 75 milliliters or 2.5% of emulsifiable EC 10 to 15 milliliters per acre. . Rust, powdery mildew with 25% triadimefon wettable powder 30 grams per acre spray; head blight, leaf blight can be used 50% carbendazim WP 75 to 100 grams per acre spray. Prevention of head blight, heading in the case of continuous yin weather, can be used in wheat heading to flowering period, with 80% carbendazim ultrafine powder 50 grams per acre, or 80% carbendazim ultrafine powder 30 grams plus 15% triadimefon 50 grams, or 40% carbendazim suspension 150 ml, 40 kg of water, focusing on evenly sprayed wheat ears. Pay attention to the need to spray after raining, triadimefon can not be used during the flowering period of wheat, so as not to affect the solid.
3. Prevention of "cold spring". From the jointing stage to the booting stage, wheat suffers from “cold springâ€, which is likely to cause abortion, emerged empty ear and half cuttings, reduced the number of panicles, and reduced yield. Pay attention to listening to the weather forecast, encountering cool weather, and early irrigation to prevent freezing damage. Suffered from the cold in spring, it is necessary to immediately water and make up for available nitrogen fertilizer. Generally, about 10 kilograms of urea is applied per acre or foliar fertilizer is sprayed to promote frozen seedlings to resume growth as soon as possible and reduce the loss of cold damage.
4. Prevent lodging. It is necessary to spray Zhuangfeng'an and Jindele before the elongation of the wheat to the beginning of the jointing stage and elongation of the internodes of the base, and 30 to 60 ml of water and 20 to 30 kg of water for the mu should be used.
5. A spray more defense. For the first time after heading and flowering before heading to prevent midge, wheat buckwheat mainly to cure powdery mildew, rust, scab, and prevent premature aging and dry hot wind. Apply 10% imidacloprid wettable powder 10g, 12.5% ​​wolfberry WP to 20g, and spray 30kg water. The second time, about 10 days after flowering, it will focus on the prevention and treatment of ear blast, powdery mildew, and rust, and prevent premature aging and dry hot wind. It uses 10% imidacloprid WP 10g and 12.5% ​​WP WP 20g per mu. There are signs of premature aging of the leaves can be added 300 ~ 450 grams of urea, spray 45 kg of water.
A greenhouse(also called hothouse)is a building or complex in which allow for greater control over the growing environment of plants. Depending upon the technical specification of a greenhouse, key factors which may be controlled include temperature, levels of light and shade, irrigation, fertilizer application, and atmospheric humidity. Greenhouse may be used to overcome shortcomings in the growing qualities of a piece of land, such as a short growing season or poor light levels, greenhouses are often used for growing flowers, vegetables, fruits, transplants and seedlings. Greenhouses can be divided into glass greenhouses and plastic greenhouses. Plastics mostly used are polyethylene film and multiwall sheets of polycarbonate material, or PMMA acrylic glass. Commercial glass greenhouse are often high-tech production facilities for vegetables or flowers. The glass greenhouse are filled with equipment such as screening installations, heating, cooling and lighting, and may be automatically controlled by a computer.
Agriculture Greenhouse,Plastic Film Greenhouse,Glass Greenhouse,Pc Board Greenhouse
JIANGSU SKYPLAN GREENHOUSE TECHNOLOGY CO.,LTD , https://www.alibabagreenhouse.com