The disclosure provides a method for cultivating rice on a Cd-contaminated farmland, belonging to the technical field of agricultural cultivation. The disclosure provides a method for cultivating rice with high-yield and low-Cd on a Cd-contaminated farmland, including applying organic and compound fertilizers to a Cd contaminated farmland, conducting soil preparation, mulching film and conducting punching, transplanting rice seedlings, and performing water management. The method may effectively avoid the activation of Cd caused by the drainage and drying of the paddy field, effectively improve the soil nutrient of the plough layer, increase the root density, the effective ear number and grain number per ear of the rice, and realize double effect of high-yield and low-Cd of the rice.

A method for micro-ridge mixed-sowing cultivation of rice includes: S1: draining away water at the maturity stage of the preceding crop until reaching a state allowing a harvester to operate; S2: harvesting the preceding crop, leaving the stubble, smashing the stalks of the preceding crop, and then spreading the smashed stalks on the stubble to form a rhizosphere layer for rice growth; S3: trenching the field to form ecological trenches; S4: flattening the standing stubble and the smashed stalks on the seedbed surface to form an underlying surface, molding seed-fertilizer-soil compounds into a ridge shape and fall the seed-fertilizer-soil compounds on the underlying surface to form ecological ridges, wherein a plurality of ecological ridges are formed between adjacent ecological trenches, and the seed-fertilizer-soil compounds are obtained by thoroughly mixing rice seeds, chemical fertilizers and soil at a mass ratio of 6 to 14:50 to 70:6,000 to 10,000.

The present disclosure provides generally for a system and method for planting flora, fauna, and dispersing various organisms through drone delivery. The system may comprise of a drone with seedling box that may hold and drop the pods containing flora or fauna. The seedling box may hold the pods with the flora or fauna in them and at specific intervals drop the pod with the flora or fauna. The seedling box may also hold various organisms or other materials and drop these organisms or materials when directed. A seedling box may comprise loading mechanism and deploying mechanism to facilitate accurate, timely deployment of the pods containing the seedlings. A pod may comprise a weighted tip with hollow cavity for seedling placement and a vertical rod for securing seedling during deployment. Where the system comprises uneven number of seedlings, seedling box may include counterweights to provide stability in configured flight patterns for duration of seedling deployment.

A weeding method of alternately cultivating ducks by block dividing in an organic rice field and an application thereof are provided. The method divides the organic rice field into blocks, and four blocks form an operation unit, and the ducklings are alternately cultivated simultaneously in each operation unit for the weeding.

An operation device outputs a forward travel instruction to a rice transplanter when receiving a simultaneous pressing operation to change both an acceleration button and a deceleration button among a plurality of operation portions to the ON-state and, while maintaining the one operation portion out of the acceleration button and the deceleration button in the ON-state after the simultaneous pressing operation, changes the other operation portion from the ON-state to the OFF-state and then, when receiving the operation to change the other operation portion from the OFF-state to the ON-state, outputs a vehicle speed change instruction to the rice transplanter.

An operation device includes a stop button that is provided on a front surface of a main body of the operation device and receives, from a user, an instruction to cause a rice transplanter to perform a stop action of autonomous travel and includes partial protruding portions that are provided near the stop button on the front surface of the main body and protrude forward from the front surface of the main body.

A traveling processing portion causes a work vehicle including a work machine movable between a non-work position and a work position to travel in an automated manner along a target path. An elevation processing portion moves the work machine from the non-work position to the work position at a position before a work start position only by a first predetermined distance on the target path. A car-speed control processing portion reduces the car speed of the work vehicle to a car speed slower than a set car-speed at a position before the work start position only by a second predetermined distance. A drive processing portion starts driving of the work machine at the work start position or a position on an advancing direction side of the work start position.

This autonomous traveling system is provided with a path preparation unit, a forward movement control unit, a backward movement control unit, and a turn control unit. The path preparation unit prepares a plurality of straight line paths. The forward movement control unit causes a machine to execute work and simultaneously causes the machine to travel along a straight line path by at least autonomous steering. After an operator has stopped the machine traveling toward an edge of a field, the backward movement control unit causes the machine to travel backward autonomously or operationally by the operator, without executing any work. After the machine moving backward has stopped, and an instruction for forward movement has been provided by the operator, the turn control unit causes the machine to turn toward a predetermined straight line path by performing at least autonomous steering without executing any work.

An apparatus for forming a rope matrix having seaweed propagules embedded therein is provided and may include an intertwining assembly configured to intertwine at least three ropes at a braiding point to form a rope matrix. Further, the apparatus may include a conveying device configured to introduce seaweed propagules adjacent to the braiding point and to enable embedding of the seaweed propagules within the rope matrix while the rope matrix is being formed. Further, the apparatus may comprises an offtake assembly configured to move the rope matrix, with the seaweed propagules embedded therein, out of the apparatus.