农业土壤的

The difference of soil nutrient between operation units can be learned from the maps, and the decision and operation for variable rate fertilization can be made according to the difference.

应用实践表明：建立的田间土壤养分信息库可以应用于精确农业变量施肥的决策和作业管理

The research on the reservation of the seed bank in soil and the biological .diversity of weeds in teaching practice base for silkworms of Shengyang Agriculture University was done in their germination and elutriation,with Simpon index and Shannon-winner.

通过目前最常用的杂草种子库研究方法—诱萌法、淘洗法，运用生物多样性Simpon指数和Shannon-winener指数对沈阳农业大学桑蚕教学实习基地土壤种子库的储量和多样性格局进行研究。

SneF8 was isolated from a soil by Plant Nematology Laboratory. The fermented products of strain SneF8 have intensive nematocidal activity on Meloidogyne incognita.

SneF8是沈阳农业大学北方线虫研究所从土壤中分离到的一株生防真菌，该菌株代谢产物能够有效控制南方根结线虫引起的蔬菜根结线虫病。

Salt stress is the primary effect that limits and decreases the output of crops in many parts of the world, particularly irrigated land.

土壤盐分是制约作物产量的主要因素，它可使作物尤其是灌溉农业的作物减产。

Beneficial bacterium Bacillus subtilis B908, which has distinct control effect for eye-spot disease caused by Rhizoctonia sp., is isolated from rhizosphere of rice.

枯草芽孢杆菌Bacillus subtilisCohn B908是中国农业大学植物病害生物防治研究室从水稻根际土壤中分离获得的有益菌株，它对水稻纹枯病、棉花枯萎病、小麦赤霉病等多种植物病害有明显的防治效果。

The soil water regionalization of Hebei Province should be based on the soil zonality, harmonize with the agricultural regionalization and keep the administration districts in integrity.

无论是灌溉水，还是天然降水，都要转化为土壤水后才能被作物根系吸收，它是农业和生态环境中各种作物和植被赖以生存的基础[1]。

Farmers can not fertilize scientifically and efficiently, which not only causes cost inflation, but also contaminates the atmosphere, water and soil.

农户不合理的施肥行为不仅增加了农户农业生产成本，同时也对土壤、水资源和大气造成了污染。

With the development and popularizing application of network technology, computer recommend fertilizing on the network would be used widely in the future.

本研究以新疆生产建设兵团农七师125团为基地，针对土壤信息数据在农业生产中的重要作用。

The project is sited in the flood plain of the Russian River, with deep, rich soil ideally suited for agriculture.

此工作室坐落在俄罗斯河流的洪泛区，地域富饶，土壤肥沃，非常适合农业生产。

India will struggle to become an agricultural powerhouse like Brazil-its landholdings are too fragmented and its water sources too stressed for that.

印度将竭力成为成为巴西那样的农业巨鳄在水资源和土壤条件方面并不占据什么优势。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。