Systems and methods for autonomous crop maintenance and seedline tracking in agricultural environments. The methods involve determining crop density within a field, generating kernel density estimations, and identifying seedline locations by analyzing local minima in crop density and their persistence. Virtual bands are generated around the seedlines to focus maintenance efforts, such as weeding or thinning, on these areas while ignoring out-of-band regions.

The present invention provides a granular agrochemical composition capable of reducing the risk of occurrence of chemical injury and capable of saving the labor, and a method for spraying the granular agrochemical composition. The granular agrochemical composition containing an agrochemical active component is used being mixed with rice seeds and sprayed upon sowing, and the composition having a short diameter of 50 to 320% of the width of the rice seeds, a long diameter of 50 to 230% of the length of the rice seeds, and a specific gravity of 1 to 4 g/cm.sup.3. The method and the like for spraying the granular agrochemical composition, including: a mixing step of mixing the granular agrochemical composition with rice seeds; and a spraying step of spraying the mixture obtained in the mixing step.

The present invention provides a granular agrochemical composition capable of reducing the risk of occurrence of chemical injury and capable of saving the labor, and a method for spraying the granular agrochemical composition. The granular agrochemical composition containing an agrochemical active component is used being mixed with rice seeds and sprayed upon sowing, and the composition having a short diameter of 50 to 320% of the width of the rice seeds, a long diameter of 50 to 230% of the length of the rice seeds, and a specific gravity of 1 to 4 g/cm.sup.3. The method and the like for spraying the granular agrochemical composition, including: a mixing step of mixing the granular agrochemical composition with rice seeds; and a spraying step of spraying the mixture obtained in the mixing step.

A method for cultivating a plant includes applying allantoin to a plant; exposing the plant to a temperature of about 30 C. or more for at least about 60 minutes; and growing the plant in a cultivation medium.

A method for cultivating a plant includes applying allantoin to a plant; exposing the plant to a temperature of about 30 C. or more for at least about 60 minutes; and growing the plant in a cultivation medium.

Disclosed are methods of improving germination rates of plants/crops, as well as preventing or arresting water evaporation loss from targeted soil areas, which allows for improved water usage efficiency by crops, plants, grasses, vegetation, etc.

A organic fertilizer for controlling pollution or accumulation of heavy metal cadmium in rice and a preparation method and an application method thereof are related to the technical field of fertilizers. The fertilizer is, based on 100 kg of organic material with a water content of 15%, added with 0.05-5 kg of iron salt calculated as iron, and is also added with manganese salt, zinc salt and copper salt, wherein a mass ratio of the iron salt calculated as iron, the manganese salt calculated as manganese, the zinc salt calculated as zinc and the copper salt calculated as copper is 1:0.2-8:0.08-2:0.001-0.5.

A Tylorrhynchus-rice symbiotic comprehensive planting and breeding method mainly based on tylorrhynchus proliferation is provided. The planting method includes: paddy field selection; field layout, wherein an inlet pipe and a drainage pipe controlled by an inlet control assembly and a drainage control assembly, respectively, are provided in the paddy field, and said inlet pipe is provided with an intercepting net for intercepting pest predators; soil preparation and fertilization; stocking of Tylorrhynchuss and seedlings; management of Tylorrhynchus proliferation; rice planting; field management; water level control; rice harvesting; Tylorrhynchus capturing. A comprehensive breeding mode of symbiosis between Tylorrhynchuss and rice is provided. By first proliferating the Tylorrhynchuss in the rice field and then planting rice, it can simulate the growth environment of the Tylorrhynchuss in the field to the greatest extent, and give full play to the mutually beneficial symbiotic relationship between Tylorrhynchuss and rice.

A Tylorrhynchus-rice symbiotic comprehensive planting and breeding method mainly based on tylorrhynchus proliferation is provided. The planting method includes: paddy field selection; field layout, wherein an inlet pipe and a drainage pipe controlled by an inlet control assembly and a drainage control assembly, respectively, are provided in the paddy field, and said inlet pipe is provided with an intercepting net for intercepting pest predators; soil preparation and fertilization; stocking of Tylorrhynchuss and seedlings; management of Tylorrhynchus proliferation; rice planting; field management; water level control; rice harvesting; Tylorrhynchus capturing. A comprehensive breeding mode of symbiosis between Tylorrhynchuss and rice is provided. By first proliferating the Tylorrhynchuss in the rice field and then planting rice, it can simulate the growth environment of the Tylorrhynchuss in the field to the greatest extent, and give full play to the mutually beneficial symbiotic relationship between Tylorrhynchuss and rice.

Means and methods are provided to produce abiotic stress tolerant plants with improved yield based on the specific identification of a DNA methylation signature in the plants out of a population of the plants. The methods involve identification and utilization of epigenetic features of a plant with high energy use efficiency