| 1. | Soil quality - classification of the nutrient supply conditions of soil
土壤质量.土壤的营养供给条件的分类 |
| 2. | The ramifications of such effects are ground water protection , erosion control and improvement of the soils ' nutrient supplying abilities
这些效果归根结底能保护地下水、控制侵蚀和改善土壤养分供应能力。 |
| 3. | Since most fertile lands have been cultivated , the expansion of the agricultural land has been extended to marginal and problem soils with poor nutrient supply
因为大多数肥力较高的土壤都在进行种植，所以增加农业耕地面积只有向边际地区和土壤养分含量低并存在某些问题的土壤上扩展。 |
| 4. | The comparison of two rates of n application based on the adequate p , k nutrient supply indicated that under conditions of various planting densities , high n application always increased yield within a narrow range for " luyu 2 "
在施磷、钾养分充足的基础上比较两种施氮量表明在不同种植密度下，鲁玉2号高施氮量总是在较窄的范围内提高产量。 |
| 5. | Species interactions between bloom microalgae and other algae play essential roles in affecting the phytoplankton sequence either by competing for the available nutrient supply or by secreting extracellular organic substances ( allelopathy ) into the environmental medium
根据生态系统中的食物链关系，通过引人赤潮生物的天敌来防治赤潮也是一种治理方法。 |
| 6. | Abstract : through a study on soil aggregate composition , nutrient status and enzymatic activity under mixed forest of chinese fir alniphyllum fortunei and pure stand of chinese fir , the results indicated that , compared to pure stand , the soil structural property was ameliorated , the soil capacity of nutrient supplying and was improved , and the soil enzymatic activity were enhanced
文摘:通过对杉木拟赤杨混交林及杉木纯林土壤团聚体结构、土壤养分状况及酶活性的研究表明，与杉木纯林相比，混交林土壤结构性能得到改善，供肥和保肥能力加强，各种土壤酶活性提高，土壤肥力较好。 |
| 7. | Keep balance in nutrition according to the children s physical needs in nutrition and nutrient supply standard for dietary worked out by the national nutriology association , children s soybean drink is made from soybean , carrot , milk and egg by adopting the advanced drying technology of denmark . with the scientific formula , this product keeps balance in nutrition and is an ideal health instant drink for children to take daily
完全保存了大豆鲜胡萝卜鲜牛奶鲜鸡蛋等原料本身固有的营养成分，还特别添加对大脑发育视力改善有良好促进作用的dha以及卵磷脂牛磺酸等益脑护视力促进钙质吸收的营养物质，其营养价值远高于普通鲜牛奶或豆奶，适宜作为少年的早餐课间餐或夜餐的加餐营养饮品。 |
| 8. | Therefore , after tasseling whether the nutrient supply is adequate or not will greatly influence the formation of grains , especially for the high - yielding cultivars of which the amounts of accumulative dry matter in reproductive organ account for a wide proportion of the total amount , so it is very important to apply adequate amount of fertilizers in earring stage
因此，抽雄后养分供应是否充足将极大影响籽粒形成，特别是高产品种，生殖器官中干物质积累量占总积累量的很大部分，所以抽雄期充足施肥至关重要。 |
| 9. | Abstract : results of a ten year ' s field experiment indicated that the use of nutrients recycled in the farming systems with appropriate amount of fertilizer applied according to the soil nutrient supplying ability could not only produce high crop yield but also balance the soil nutrient budget so that there were no significant surplus of nutrients ( mainly inorganic nitrogen ) which may emit or leach out of soil into environment
文摘:持续10a的田间试验结果表明，在保持农业系统养分循环再利用的基础上，根据土壤养分供给力设计化肥施用量，可以在实现作物高产的同时，平衡土壤养分收支，从而避免土壤中肥料养分（主要是氮）过剩而进入环境。 |
| 10. | Therefore , measurements of fertilization should ensure adequate n , p , k nutrient supply in the earlier and mid periods of maize growth , especially k application should be fully made before elongating stage , but a large amount of n fertilizer should be applied in tasseling and filling stages for uptake by plant to promote plump seeds so as to attain high maize yield
因此，施肥措施应保证在玉米生育早期和中期充足的氮磷钾养分供应，尤其施钾应在拔节前全部完成，但是在抽雄期和拔节期应施用大量氮促成饱满籽粒而获得玉米高产。 |
