Preface

Planting industry is an important foundation of agriculture, grain, cotton and oil are important commodities related to national economy and people’s livelihood. With the rapid development of industrialization, urbanization and agricultural modernization, the rigid growth of consumption demand for grain and other major agricultural products, the increasing constraints of climate, arable land and water resources, and the increasing impact of changes in rural labor structure, the booming urban agriculture also puts forward new requirements for traditional agriculture. How to promote the sustainable and stable development of planting industry and realize the goal of “high yield, high quality, high efficiency, ecology and safety” has become an important issue for agricultural workers to consider.
     Crop production is the core and foundation of agricultural production system. Crop products provide the most basic and necessary living materials for human survival, as well as feed for the development of animal husbandry and processing raw materials for industry. Understanding crop and its production process, and studying the theory and technology system of high yield, high quality, high efficiency, low consumption and environmental protection of crop are very important to improve the quantity and quality of crop products, increase the planting efficiency, protect the environment and realize the sustainable development of agriculture. Efficient crop production is of great significance to ensure food security and promote the development of national economy. This book comprehensively and systematically introduces the subject of Agronomy from a macro perspective, aiming to give readers a comprehensive and systematic understanding of the origin of agriculture, the stage of agricultural development, agronomy and agricultural production technology, as well as some basic knowledge and theories related to crop planting. The author hopes that readers can get reference opinions through reading this book and contribute part of their strength to the development of agricultural construction of the motherland.

前 言

种植业是农业的重要基础，粮棉油是关系国计民生的重要商品。随着工业化、城镇化和农业现代化快速推进，粮食等主要农产品消费需求刚性增长，气候、耕地和水资源约束日益增强，农村劳动力结构变化冲击增强，方兴未艾的都市农业也对传统农业提出了新的要求。如何促进种植业持续稳定发展，实现“高产、优质、高效、生态、安全”目标成为农业工作者必须考虑的重要问题。
        作物生产是农业生产系统的核心和基础。作物产品为人类生存提供最基本、最必需的生活资料，同时还为畜牧业的发展提供饲料、为工业提供加工原料。了解作物及作物生产过程，研究作物高产、优质、高效、低耗、环保的理论与技术体系，对提高作物产品的数量和质量，提高种植效益，保护环境和实现农业持续发展至关重要。高效作物生产对保障我国粮食安全、推动国民经济发展具有重要意义。本书从宏观的角度全面系统地介绍了有关农学学科方面，旨在让读者从总体概貌上对农业的起源、农业发展阶段、农学及农业生产技术等有一个较为全面系统的认识和了解，并掌握一定的与作物种植方面相关的基本知识和基本理论。希望读者可以通过阅读本书获得参考性意见，为祖国的农业建设发展贡献自己的一部分力量。