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- Structural adjustment for crop production was continued. 种植业结构继续调整。
- The group has build winnows in Kenya to improve crop production. 该组织还帮助肯尼亚建造了扬谷器以提高其农作物产量。
- In rural India the group is assisting farmers with crop production. 在印度当地的组织正在帮助水稻生产的农民。
- Application of the various soil and plant sciences to soil management and crop production; scientific agriculture. 农学; 农艺学土壤学和植物学在土壤管理和作物生产中的应用; 科学农业
- In rural India, the group is assisting farmers with crop production. 在印度的乡村,组织帮助农民的农作物生产。
- This year's organic crop production plan and rotation plan in organic fields (Appendix3). 请列出本年度有机地块的种植计划及轮作计划。(详见附3)
- Agronomy A branch of agriculture dealing with soil management and crop production. 农学,农艺学:农业的一个分支,主要研究土地的管理和作物的生产。
- Soil erosion seriously influences soil physical and chemical properties, and further limits crop production. 土壤侵蚀严重地影响土壤物理和化学性质,限制了作物生产;
- Today, the MYR site developed by Flannery is continuing as the basis for further crop production research. 今天,Flannery开发的地点继续作为深入研究作物生产的基地。
- When you're out, notice the fields and gardens. Fertilizers and insecticides made from petroleum can improve crop production. 当外出时你会看到农田和花园。化肥和杀虫剂是由石油制取的,可以使农作物增产。
- However, with this exception, inoculant industries for other microorganisms for crop production have not been significantly developed. 然而,用于作物生产的其它菌种的接种剂生产并没有明显进展。
- The development of biotechnology has brought new opportunities for development of crop production of sweet potato (Ipomoea batatas Lam.). 新兴的生物技术为甘薯这一古老的农作物带来了新的发展契机。
- Phosphorus (P) deficiency is one of the main limiting factors to crop production, particularly on acid soils of the tropics and subtropics. 摘要土壤缺磷是作物生产的主要限制因素之一。
- In several areas where temperature is the limiting factor in crop production,growing seasons will lengthen by aeveral days. 在温度是限制的因素在种植业的几个区域, 生长季节加长将在几天以前。
- In rural India the group is assisting farms with crop production and in Mozambique techno serve is helping develop the travel and tourism industry. 在印度的农村,组织正在农作物方面帮助农夫们。在莫桑比克则帮助他们发展旅游业。
- No-till crop production on fine-textured, poorly drained soils can be particularly problematic, often resulting in decreased yields. 在土质致密、排水不良的土壤,使用不整地栽培法可能特别棘手,而且作物产量通常会减少。
- Enhanced plant health can result in one or more of the following outcomes: Enhanced crop production, improved crop quality and improved stress tolerance. 提高植物的健康性能也导致以下农业生产的优越性:包括提高农产品作物的质量,提高作物对恶劣环境条件的承受和抵抗力。
- Cover crop: a crop, such as winter rye or clover, planted between periods of regular crop production to prevent soil erosion and provide humus or nitrogen. 间作在常规农作物生长间期内种植的农作物,比如冬麦或三叶草,以预防土壤侵蚀并能提供腐殖质和氮。
- In accordance with the normal,social and economical conditions in Yanshan piedmont,the indictor system was built for a comprehensive benefit evaluation of crop production. 依据燕山山前平原区的自然、社会、经济条件,建立了对该区作物种植生产效益进行综合评价的指标体系,并对目前燕山山前平原区5种主要的作物种植模式进行了效益的综合分析和评价。
- Rhoades, J.D., Kandiah, A. and Mashali, A.M., 1992, The Use of Saline waters for Crop Production: FAO Irrigation and Drainage Paper 48, FAO of the United Nations Rome. 台湾省水利局,1995,环境变迁对灌溉用水量影响之调查与研究,彰化农田水利会成果报告。