The present disclosure provides peanut maturity grading systems and methods for quickly, efficiently, and objectively determining a peanut maturity grade for a crop of peanuts and determining an optimal harvest time for the crop. Embodiments of systems and methods of the present disclosure can be performed in the field or field-side and do not require assistance of a trained peanut grading specialist.

Methods for promoting plant growth based on novel photosafening treatment regimes with glycopyranosides including glycopyranosylglycopyranosides, and aryl--D-glycopyranosides, and more specifically, with one or more compounds comprising terminal mannosyl-triose, optionally in the presence of light enhanced by one or more light reflecting and/or refracting members such as silicon-based substrates. Furthermore, chemical synthesis processes for the above compounds are disclosed for general application to plants. Silicate microbeads of the like are distributed over the ground or substrate in which roots of a plant are supported and planted, beneath and around a plant in a manner that light is refracted or reflected toward the phylloplane.

Some variations provide a biomedia composition comprising: from 50 wt % to 75 wt % total carbon, on a dry basis, according to ASTM D5373, wherein the total carbon is renewable according to ASTM D6866 (.sup.14C/.sup.12C isotopic ratio); from 20 wt % to 40 wt % oxygen, on a dry basis, according ASTM D5373; from 3 wt % to 10 wt % hydrogen, on a dry basis, according to ASTM D5373; and from 0.1 wt % to 2 wt % nitrogen, on a dry basis, according to ASTM D5373, wherein the biomedia composition is characterized by volatile-matter content from 50 wt % to 75 wt %, according to ASTM D3175; wherein the biomedia composition is characterized by ash content from 1 wt % to 25 wt %, according to ASTM D3174; and wherein the biomedia composition is characterized by moisture content from 0 to 75 wt %, according to ASTM D3173. Processes are also described to make and use the biomedia compositions.

Some variations provide a biomedia composition comprising: from 50 wt % to 75 wt % total carbon, on a dry basis, according to ASTM D5373, wherein the total carbon is renewable according to ASTM D6866 (.sup.14C/.sup.12C isotopic ratio); from 20 wt % to 40 wt % oxygen, on a dry basis, according ASTM D5373; from 3 wt % to 10 wt % hydrogen, on a dry basis, according to ASTM D5373; and from 0.1 wt % to 2 wt % nitrogen, on a dry basis, according to ASTM D5373, wherein the biomedia composition is characterized by volatile-matter content from 50 wt % to 75 wt %, according to ASTM D3175; wherein the biomedia composition is characterized by ash content from 1 wt % to 25 wt %, according to ASTM D3174; and wherein the biomedia composition is characterized by moisture content from 0 to 75 wt %, according to ASTM D3173. Processes are also described to make and use the biomedia compositions.

A process of plant fertilization includes adsorbing phosphorus from an anthropogenic phosphorus source onto a plurality of particles of phosphorus adsorbent and then applying the plurality of particles of phosphorus adsorbent to a plant medium. A composition includes a soil amendment and a plant medium. The soil amendment includes a plurality of particles of phosphorus adsorbent and phosphorus from an anthropogenic phosphorus source adsorbed onto the particles. A process includes adsorbing a first amount of phosphorus from a phosphorus source onto a plurality of particles of phosphorus adsorbent to saturate the particles of phosphorus adsorbent with phosphorus. The process also includes processing the particles to maintain the first amount of phosphorus on the particles and permit additional adsorption of phosphorus onto the particles. The process further includes adsorbing an additional amount of phosphorus from the phosphorus source onto the particles to saturate the particles with phosphorus.

A process of plant fertilization includes adsorbing phosphorus from an anthropogenic phosphorus source onto a plurality of particles of phosphorus adsorbent and then applying the plurality of particles of phosphorus adsorbent to a plant medium. A composition includes a soil amendment and a plant medium. The soil amendment includes a plurality of particles of phosphorus adsorbent and phosphorus from an anthropogenic phosphorus source adsorbed onto the particles. A process includes adsorbing a first amount of phosphorus from a phosphorus source onto a plurality of particles of phosphorus adsorbent to saturate the particles of phosphorus adsorbent with phosphorus. The process also includes processing the particles to maintain the first amount of phosphorus on the particles and permit additional adsorption of phosphorus onto the particles. The process further includes adsorbing an additional amount of phosphorus from the phosphorus source onto the particles to saturate the particles with phosphorus.

A plant plug holder is provided which is designed to be inserted within a cut-out in a hydroponic tower. The plant plug holder includes (i) an edge member that encircles the holder's opening and which may be sealed to the front tower surface; (ii) a base member configured to support the plant plug and which extends rearward from the edge member and into the central cavity of the tower; (iii) a rear shroud top member that inhibits leakage as well as plug erosion; (iv) a pair of side members that maintain the position of the plant plug within the plug holder; and (v) a plurality of open regions configured to promote water drainage from the top surface of the base member.

The present application is directed to a method of applying a plant growing material to a surface of a mold d?cor, the method comprising flocking at least one aquatic seed to the surface of a mold d?cor to adhere the at least one aquatic seed to the surface of the mold d?cor.

The present application is directed to a method of applying a plant growing material to a surface of a mold d?cor, the method comprising flocking at least one aquatic seed to the surface of a mold d?cor to adhere the at least one aquatic seed to the surface of the mold d?cor.

A plant cultivating apparatus may comprise a cultivating unit, a plurality of cultivating cups, a nutrient bucket, a motor, a temperature adjusting unit, a temperature and humidity sensor, and a control unit. The control unit, which is electrically connected to the motor, the temperature adjusting unit and the sensor, is configured to receive environmental data such as temperature and humidity from the sensor and to turn on/off the motor or/and the temperature adjusting unit according to the received data.