7 results about "Paddy field" patented technology

The invention discloses a method for ecologically cultivating freshwater shrimps in a paddy. The method includes the following steps that the paddy is fertilized and then raked, a communicated cultivating ditch is excavated in the raked paddy, a field ridge is built around the cultivating ditch with excavated soil, the height of the field ridge ranges from 45 cm to 70 cm, and the width of the field ridge ranges from 60 cm to 90 cm; the cultivating ditch is provided with a water inlet and a drainage opening, the water inlet and the drainage opening are respectively provided with a device preventing the freshwater shrimps from escaping, a pond occupying 5%-8% of the area of the whole paddy is excavated on the water inlet, and the depth of the pond ranges from 80 cm to 110 cm; the paddy is sterilized through calcium oxide; seedlings of a rice variety are inserted into the sterilized paddy, wherein the stalks of the seedlings are thick and strong, the seedlings are resistant to lodging, diseases and fertility and grow in deep water, and the yield is high; the freshwater shrimps are fed after the seedlings turn green; bait is thrown during cultivating according to the freshwater shrimps in different growth stages, and meanwhile water keeps clean. The freshwater shrimps cultivated in the method are natural and free of pollution and are pure green food.

The invention relates to a direct-sown rice field weed control method for delaying or preventing barnyard grass from developing resistance, which belongs to the technical field of plant protection. The method uses different weedicides in different years, different weedicides are used in the same year, and the different action sites of different weedicides are utilized to control weeds in rice fields. The design is reasonable and novel; the method can ensure that the effect of controlling weeds can reach more than 98 percent in a single year and that the effect of controlling weeds can reach more than 95 percent as well in one cycle or multiple cycles; and compared with the prior art, the method can enhance the effect of controlling barnyard grass by 30 percent to 50 percent and the effect of controlling other weeds by more than 10 percent and increase the rice yield by 15 percent to 30 percent.

The invention discloses a pyridine.benzene thiamethoxam acyl fertilizer, which is prepared from pyrazosulfuron with herbicidal activity, mefenacet pesticide and a nitrogen fertilizer carrier by combination, wherein the weight ratio of the pyrazosulfuron to the mefenacet is 1-(20-30); and the nitrogen fertilizer carrier is composed of urea, ammonium chloride and packing. The production method of the fertilizer is also disclosed by the invention; water is taken as a solvent; fertilizer granules are prepared by a spray coating method; and the production method is short in technological process, small in environmental pollution, stable in quality, and good in application prospect; the obtained fertilizer granules are suitable for fertilizing and weeding of a paddy field, and the targets of saving work, time and labor can be achieved.

The invention relates to a rotary cultivator, in particular to a rapid rotary cultivator special for a paddy field. The rapid rotary cultivator special for the paddy field is capable of automaticallyploughing the field, high in working efficiency, capable of cleaning weeds and high in working quality is provided. The rapid rotary cultivator special for the paddy field comprises a shell, a push handle arranged on the shell, a first rotating shaft rotationally mounted on the shell through a bearing, two wheels mounted on the first rotating shaft, a soil turning assembly installed on the shell and used for turning soil in a rotating manner, and a power assembly installed on the shell and providing power in a rotating manner. According to the rapid rotary cultivator, soil turning can be conducted on the paddy field through the soil turning assembly, muddy water splashing can be avoided through an arc-shaped baffle while soil turning is conducted on the paddy field, power can be provided when soil turning is conducted on the paddy field through the power assembly, turned-out soil blocks can be pushed to be flat through a square plate, and larger soil blocks can be crushed through an awl.

The invention discloses a parallel straw-burying anti-skid wheel for the paddy field. The parallel straw-burying anti-skid wheel comprises flanges, supporting ribs, wheel rims, anti-skid teeth, straw-pressing strips, lining rings and an additionally-joined wheel hub. Through the additionally-joined wheel hub, two anti-skid wheels are connected in parallel. After parallel connection, the width L ranges from 600 to 800 mm and the diameter ranges from 760 to 880 mm. In order to reduce the weight of the parallel straw-burying anti-skid wheel, the wheel rims and the lining rings are made of round steel. The straw-pressing strips are made of flat iron. When the parallel straw-burying anti-skid wheel walks during operation, the anti-skid teeth walk in soil. Due to small strength of the straw-pressing strips with smaller circumferential diameters being smaller than the circumferential diameters of the anti-skid teeth, the straw-pressing strips are suspended in the floating soil by half in order to bury straw into the floating soil.

The invention discloses a herbicide composition containing dicamba and oxadiazon, and applications thereof. Dicamba and oxadiazon are taken as active ingredients of the herbicide composition, and mass ratio of dicamba to oxadiazon is 1-60:1-60. The herbicide composition can be used for weeding of paddy fields after seedling, and especially possesses excellent effects on preventing and killing grassy weed and broadleaf weed in paddy fields. Compared with single ingredient preparations, drug effect of the herbicide composition is improved, generation of weed resistance is delayed, weed control spectrum is broad, effect lasting period is long, and the herbicide composition is safe for both rice and afterreap crops.

The invention relates to a solar PV distributed generation lighting device mounted on a high-speed rice transplanter, and belongs to the technical field of new energy lighting in agricultural machinery. Sunlight irradiates solar batteries on a ceiling of the high-speed rice transplanter mounted at the upper part of a supporting rod of the ceiling to generate current, the current is input into a controller through a conductive wire for regulation, and then the current is input into energy storage batteries through the conductive wire for electrical energy storage. The current output from the energy storage batteries supplies power for rear LED (light emitting diode) illuminating lamps mounted on rear LED illuminating lamp hollow supporting rod through the conductive wire, the controller and a first button switch, and the scene of grabbing and transplanting rice seedlings by transplanting claws is illuminated; and the current output from the energy storage batteries supplies power for front LED illuminating lamps mounted in the front of the rice transplanter through the conductive wire, the controller and a second button switch, and the scene of paddy fields to be transplanted in front of the rice transplanter is illuminated. According to the solar PV distributed generation lighting device mounted on the high-speed rice transplanter, the lighting conditions during the operation of the high-speed rice transplanter are improved, and the improvement on the transplanting operation quality of the transplanted rice seedlings is facilitated.