I. "Four Unity" Cultivation Technique System of Winter Wheat North China is the main wheat producing area in China. In terms of water management, the traditional high-yielding wheat cultivation is usually based on the physiological water requirement of wheat in each growth period. During the wheat growing period, it is usually irrigated 4 to 6 times, and the irrigation volume exceeds 300 mm. In recent years, irrigation in wheat fields has declined to a certain extent, but in high-yielding wheat areas, watering is still required 3 to 4 times after sowing, irrigation volume is more than 200mm, and water use efficiency is not significantly improved. During the "Eighth Five-Year Plan" period, China Agricultural University established the "Winter Wheat High-Technology System for Water Saving and High-Yield" research in Wuqiao, Hebei, forming three technical models and achieving the unity of water saving and high yield. In recent years, further research has succeeded in saving water, saving fertilizer, and high yield, simplifying the “four unification†cultivation technology system, and achieving the goal of sustained high-yield. The basic principle of "four unification" technology system of winter wheat. The main principle of the "Four Unification" technology system is to change the traditional cultivation concept of "high input and high output" and establish a new concept of cultivation with "moderately low input, high efficiency and high output", and guided by systematic thinking in winter wheat. Under the background of two-year production of summer corn and summer corn, in consideration of and optimizing the allocation of annual light and warm water and fertilizer resources, “adjustment of the five structures and five functionsâ€: adjustment of water-consuming structures, 2m soil reservoir function; adjustment Fertilizing structure, exerting the effects of deep application of basal fertilizer and nutrient interaction effects; adjusting the structure of root groups, exerting the continuous absorption function of primary roots (seed roots); adjusting the canopy structure, and exerting photosynthetic and tolerance-resistance functions of non-leaf organs such as spikes, stems, and sheaths ; Adjust the output structure, and play the role of the synergetic compensation effect of the integrated technology. The basic measures of the "four unification" technology system for winter wheat. A "species": According to the "law" selection, species support. Second, "earth": look good, choose the right soil. Three "squeaks": pouring enough bottom, do not rob. Four "fat": Reasonable fertilizer, all the basic facilities. Five "secret": late sowing to increase density, increase seedlings by seedlings. Six "quality": intensive cultivation, strict quality. Seven "guarantee": protect the earth, protect against damage. Eight "water": pouring 2 water in spring, appropriate amount of appropriate period. Second, wheat ridge efficient water-saving technology Wheat high efficiency and water saving technology is a highly efficient agricultural water saving technology that was successfully developed by the Crop Research Institute of Shandong Academy of Agricultural Sciences and the International Maize and Wheat Improvement Center. The technology is ridiculed in wheat fields and wheat is planted on top of ridges. Compared with traditional flat cropping, wheat cultivating cultivation has changed the way of cultivation and planting, which is conducive to improving the soil structure; changing the way of surface irrigation, improving water production efficiency; innovating fertilization methods and improving the utilization rate of fertilizers; changing planting methods and increasing the interception of light energy. , improve the utilization of light energy. Compared with traditional flat crops, ridge cultivation is beneficial to optimizing the relationship between wheat populations and individuals, and exerting the advantages of wheat's sidewalks to achieve the purpose of suitable groups, individual robustness, panicles, spikes, and grain weights, generally increasing by about 10%. Wheat ridge efficient water-saving technology points: 1. Choose a suitable area. Wheat ridge cultivation is suitable for plots with good water-disposal conditions and better ground conditions. Plots with deep plowing layer, high fertility, water retention and fertilizer retention, and well-drained land should be selected. 2. Fine site preparation. Before sowing, suitable soil moisture should be provided. If agriculture is tight, it can also be planted and then watered along furrows. Before ridging, loosen the soil 20~30cm. 3. Reasonably determine the ridge width. For moderately fertile plots, the ridge width is suitable for 70-80cm, the ridge height is 13-15cm, the ridges are planted with 3 rows of wheat, the wheat row spacing is 15cm, the large row spacing is 50cm, and the average row spacing is 26.7cm, which is convenient for the next The summer maize is interplanted directly in the ditch. 4. The use of matching ridges to improve the quality of sowing. With the special ridge and sowing machine for wheat, the ridging and sowing operations can be completed at one time, which can improve ridging quality and sowing quality. 5. Rational selection of improved varieties, give full play to the advantages of ridge cultivation. Sowing with a precision seeder, the selection of varieties should be based on the multiple spike type with high tillering rate. 6. Strengthen pre-winter and spring fertilizer management. The ridge wheat should be poured with good winter water in due time. During drought years, it is necessary to pay attention to the ridge cultivation of wheat in the seedling and spring watering in time to prevent drought and freezing damage. 7. Timely prevention of pests and weeds. Wheat ridge cultivation is conducive to effective control of weeds, and due to the improvement of living environment, plant morbidity and pests are lighter than traditional flat crops. However, attention should be paid to forecasting pests and diseases so as to achieve early detection and early control. 8. Timely harvest, return straw. The ridge wheat harvest can be harvested with a combine harvester just like traditional flat crops, but corn seedlings should be protected for corn seedlings. 9. Ridge cultivation combined with no-tillage coverage. (Director of Wheat Experts of the Ministry of Agriculture) Disposable Products,Medical Disposable,Hospital Disposable Products,Disposable Medical Device Qingdao DMD Medical Technology Co., LTD , https://www.conston-tech.com