Additives for agricultural use, namely, in-furrow plant preparations, and seed treatments, not for foliar applications; additives for agricultural use, namely, a combination of three innovative products, sold together as a single unit, consisting of: (1) an inoculant for nitrogen fixation on legume plants like, peanuts, soybeans, and alfalfa, or microbial formulated products improving plant root development resulted in stimulating plant growth and health; (2) soil penetrant enhancers and plant growth promoters; soil penetrant enhancers and plant growth promoters that improve movement of soil applied pesticidal active ingredients and nutrients throughout the soil profile thus increasing control; soil penetrant enhancers and plant growth promoters that (i) protect pesticidal active ingredients against degrading, (ii) increase the efficacy and (iii) lengthen the residual benefit; soil penetrant enhancers and plant growth promoters that enhance horizontal and vertical water movement into soil; soil penetrant enhancers and plant growth promoters that increase of microbial activity of pesticidal active ingredients and nutrients; soil penetrant enhancers and plant growth promoters that increase oxygen levels in soil profile together with the microbial activity improving the nutrient uptake and root development of plants; and (3) an additive for agricultural use, namely, innovative products of biological origin for the protection of agricultural plants against biotic and abiotic stresses; additives to herbicides, other chemical pesticides, and fertilizers, for the neutralization of their stressful side effects on agricultural plants, thus saving a significant portion of yield; additives for agricultural use, namely, chemical preparations that improve plant resistance to drought, heat, frost, soil contamination, deficit of nutrients, and other stresses