Late rice no-tillage seedling cultivation techniques
Rice no-tillage rice transplanting refers to the use of herbicides to kill weedy plants and cast grain seedlings, destroy dry rice piles, apply water and fertilize rice fields, without any tillage plowing after harvesting the previous crop. After the water layer is naturally drained or drained, a new paddy cultivation technique for paddy rice or bamboo shoots is planted in Daejeon. The key technologies for late-night no-tillage production are described below:
1, no-tillage rice field selection
No-tillage throwing shall be carried out in paddy fields with sufficient water sources, convenient drainage and irrigation, flat fields, deep plowing layer, and good water retention and fertility conservation. Dry-land, shallow, thin, and drained sandy shallow foot fields are not suitable for no-tillage. Low-land, hill-hole fields, cold-water-sweeping fields, and rotten (three-point water at the end of the day at the end of the flood season) fields must be well-opened in ring fields and crosses before no-tillage chemical weeding.
2. Disposal methods of rice piles and weeds
Due to the large amount of rainwater, the chemical crops are mainly planted in rice piles and seed grain valley seedlings. Therefore, the no-tillage herbicides used for no-tillage should be characterized by rapidity, high efficiency, and strong rainfall resistance. After many years of trial screening and production applications, Gramoxone is an ideal herbicide for no-tillage chemical crop killers. Early and late application of the herbicides are very effective. Especially, they can be used more quickly to achieve their advantages. The specific operations are as follows: When harvesting early rice, the steamed buns should be cut as low as possible. Generally, the height of rice piles should not exceed 15 cm. After the rice straw is removed from the rice stalks, the wet land mass should be filled with water to encourage germination and emergence of the shattered grain valley. 7-10 days before throwing, drain the field water, use 20% grams of traces per acre 200-250 ml plus 2-25 kg of ammonium bicarbonate or potassium chloride, water 50-60 kg, spray evenly with a sprayer On rice piles, seed grain valley seedlings and weed stems and leaves. The second day after spraying, make a supplementary spray on the leaked area. The second day of irrigation is to flood the fields with deep water, and the depth of water is better to submerge the rice piles. When the soil is flooded, calcium phosphate, ammonium bicarbonate or compound fertilizers are used as base fertilizer to accelerate the decay of the rice piles and weeds. Soak the paddy field for 5-7 days until the water layer naturally drains or drains the water. Pre-emergence weeds can be sowed before or after the soil treatment. The types and methods of use of herbicides are the same as those for conventional tillage.
3. High-yield cultivation and management techniques of no-tillage and castrated rice
No-tillage seedlings should be planted seedlings with a larger hole diameter (350-400 holes / piece) or no-tillage special nursery paper tube seedlings, suitable for planting leaf age of 25-35. The field planting density in Daejeon is about 10% higher than that of regular ploughing. The total amount of fertilization is about 10% higher than that of throwing stubble on regular ploughing. The base fertilizer is lightly applied, and green manure and tiller manure are reapplied. The amount of fertilizer used in the early stage should be more than 60% of the total fertilization amount. Basal fertilizer is mainly composed of compound fertilizers and phosphate fertilizers, and less application of ammonium bicarbonate. Base fertilizers cannot be applied to organic fertilizers that are not matured to avoid burning seedlings. In water management, it requires shallow irrigation and shallow drying. Shallow water throwing, thin water to promote the establishment of seedlings and childbirth, early stage of delivery should not avoid deep water, enough seedlings that exposed the sun, after the spike differentiation period to maintain moisture, heading and flowering period must have shallow water layer, grouting period of solid dry wet and dry to prevent Stop water prematurely. In the control of pests and diseases, there are similarities and differences between regular and ploughing, and prevention and control of rice blast, sheath blight, bacterial leaf blight, bacterial streak disease, and snails, saponins, rice leaf roller, rice planthopper, etc. In particular, it is necessary to strengthen the monitoring and control of A. sinensis and S. chinensis.
Bed Stick Safety,Bed Sticks Mobility,Bed Stick Occupational Therapy,Bed Stick With Safety Return
Active Life Healthcare Co.,Ltd , https://www.alh-med.com