The analysis of the relevance of the State land policy in the Russian Federation (RF) is given. The perspective of its implementation is shown taking into account the technological policy for land management of “work sites” on an ecological-landscape basis. A way is proposed to optimize the horticultural system in agricultural enterprises using knowledge engineering methods and sustainable development methodology. The purpose of the study is to identify the modern tasks of horticulture in agricultural enterprises, the formation of environmentally friendly industrial landscapes for them, ensuring the effective management of the production of fruit and berry products. In the work, methods of different scientific fields were used that substantiate the knowledge base “garden landscape” of an agricultural enterprise. These include geobotany, phytocenology, biogeocenology, ecology landscape, landscape ecology, environmental engineering and knowledge engineering. These areas are not yet used in the methodology of horticulture and seem to us extremely necessary in accordance with the requirements of modern legislative and regulatory acts of the Russian Federation imposed on the greening and digitalization of fruit and berry production and land use. They were chosen by us not so much for improving the “gardening system” as for engineering and management of environmentally friendly production. To create a knowledge base on the “garden landscape” of an agricultural enterprise, the importance of the ontology of primary bio-, phyto-, eco- and geosystems is substantiated, a system of “transitionstranslations” between them is proposed to prepare the digitalization of horticulture. The development of accounting methods for different types of landscape territorial structures for agro ecological assessment of lands on the catchments of the hydrographic network, agro ecological requirements of crops (varieties) to environmental factors, identification of garden able “primary agro ecologically homogeneous land plots” for the horticultural system, the need for their selection as work sites is recommended . It is proposed to carry out digitalization of horticulture on a new scientific platform, Nature-Industrial Systems (NIS), taking into account the knowledge of the garden landscape and the methodology of a systematic approach to solving the problems of sustainable development, perfection and optimization of the basic technology registers, certification of applied developments, energy control.