No tillage, also known as zero tillage, direct drifling, and cultivating.
Rotary tillage, soil and water conservation tillage, no less tillage, less tillage, etc., refer to crops or tractors that are not ploughed or tractor-ploughed before the sowing or transplanting of crops. Rigs are planted or transplanted directly on the stubble or planted on the stubble. During the growth of rice, no farm tools are used again. Take a chemical or weed control method. Less ploughing refers to the method of reducing cultivating operation procedures, times, and reducing energy consumption.
The development of no-tillage cultivation in rice was as early as 265–316 AD. No-tillage cultivation was used for planting ratoon rice in South China. From 1068 to 1077, Zhejiang Province began to develop double-season intercropping rice, and the latter season rice also used no-tillage cultivation method. . However, the minimum no-tillage method was used as a farming system and rice cultivation measures. The earliest one had to be Japan and more in-depth systems, such as "economizing cultivation methods." It was only at the end of the 1970s that research began in the country. In northern Xinjiang, there was little direct seeding cultivation, in the middle and lower reaches of the Yangtze River, there were rotary tillage late rice, and in southern China, semi-dry ridge cultivation, etc., in which semi-dry ridges were natural no-tillage and The most systematic and practical technology has become an important measure for the development of winter paddy fields and the improvement of cold, yin, rotten and rust fields. In recent years, the Sichuan Plain hilly region has also researched and promoted the paddy fields and no-tillage rice cultivation in a variety of forms. All of them have saved labor, maintained soil and water, maintained the surface structure of the soil, improved soil physical and chemical properties, and enhanced soil redox potential and connectivity. Permeability, so that the role of nutrient enrichment of the surface of the soil, and can promote early growth of rice, root development is good, reduce pests and diseases, so that rice growth potential. Promote growth, increase grain plumpness, and achieve high yields.
Different types of no-tillage, the scope of adaptation is not the same. Direct seeding cultivation and direct seeding in paddy fields, suitable for loose rice fields and the promotion of Tan Mu Tian Tianzhong. It is carried out in a region where the degree of mechanization is suitable for rotary tillage and continuous cropping of late rice and spring flowers. The semi-dry cultivation of natural no-tillage is mainly used in winter paddy fields, and the comprehensive utilization of paddy fields in cold, yin, rot, rust fields, and loam areas (Rongdaogou, Ping, Guagua) is suitable for the promotion and application of clay in rabbits.
The above-mentioned no-tillage forms can be classified into two types: one is the semi-drought ridged natural no-tillage that changes the topography; the other is the no-tillage no-tillage without ridging, and the no-tillage method is neither ridiculed nor ploughed. In the first 15 to 20 days before transplanting, watering and soaking the field, after the soil of the transplanting soil layer is expanded, the soil will be transplanted directly into the wetland after the first planting of the earthworm or the first armpit. In the double-season rice area, the early rice is often used after harvesting, or the drive is used to drive the planter to straighten the field surface, or it can be directly broadcasted by the seeder. In this way, the yield increase effect can only be maintained for two years, and the third year should be plowed once.
To fully play the role of no-tillage and yield-increasing production, it is necessary to adopt corresponding supporting technologies, that is, to select high-yielding, high-yielding varieties with strong tillering ability, to cultivate a large number of strong and strong fish, to collect water from headwaters at the time of harvest, and to prevent water leakage. To ensure the density. Pingtian No-tillage rice root is mainly distributed in the surface layer, it should pay attention to stage fertilizer, no less ploughing paddy field drainage performance is good, avoid cutting off the water after heading prematurely, prevent premature aging, promote the cutting of mud rice, reduce overwintering insect population.
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