The proportion of organic fertilizer in total nutrient inputs had being decreased with time, 2 the recycling ratio of nutrient of organic fertilizer was low, the regional application of organic fertilizer was imbalanced, and 3 over-application of organic fertilizer lead to nitrate pollution of groundwater and heavy metal accumulation in soil.

我國有機肥料利用中存在的主要問題是：①有機肥施用面積逐年減少男人天堂AV综合网，肥料結(jié)構(gòu)中有機肥的比重逐年降低，但近年來趨于平穩(wěn)亚洲第一区第二区在线；②有機肥養(yǎng)分再循環(huán)率不高体内射精视免费网站，區(qū)域利用狀況不平衡；③有機肥過量施用帶來的一些環(huán)境問題如地下水資源污染欧韩一级黄色视频、土壤重金屬累積等人人摸人人干人人操人人看。

Leben is compared with milk however, leben is easier to digest sum sorption , its nutrient utilization ratio improves to some extent will do.

不過，酸奶與牛奶相比免费看在线a片，酸奶更易于消化和吸收国产精品污视频，使得它的營養(yǎng)素利用率有所提高。

The nutrints imported from rainfall,and ratio between nutrient content and total nutrient content in macroelement and microelement,and changes in month and year were analyzed.

本文就寒溫帶大興安嶺林區(qū)興安落葉松原始林生態(tài)系統(tǒng)降水輸入總養(yǎng)分含量外国黄色网址、大量元素和微量元素的養(yǎng)分含量占總養(yǎng)分含量的比值免费在线看黄国产、降水輸入養(yǎng)分含量月際變化和年內(nèi)分配等進行了分析。

It also could regulate the ratio between nutrient organs and procreation organs, and increased their economic values.

同時調(diào)控光合產(chǎn)物在營養(yǎng)器官和生殖器官之間的分配比例国产又黄又爽又色又湿，提高其經(jīng)濟價值中文字幕求饶的少妇久久福利。

Based on the facts of low soil fertility and unbalanced nutrient ratio in Ankou valley ,one soil sample was collected per 2 to 3 hm 2 according to the land use pattern and the relief determinant .

針對安口流域內(nèi)土壤肥力水平低且養(yǎng)分比例失調(diào)的實際狀況，按土地利用方式及地形部位每 2～ 3hm2 面積采集一個土壤樣品欧美美女高潮潮喷，用常規(guī)分析方法測定了土壤有機質(zhì)日韩黄色网站视频免费观看、有效氮、有效磷裸体美女成人性大片视频播放网站、有效鉀日韩免费福利漫画网站、有效銅、有效鋅等養(yǎng)分指標(biāo)，編制了土壤養(yǎng)分豐缺對照表激情福利影院，對各測定項目進行了系統(tǒng)評價欧美精品视频1区2区，并作了相應(yīng)的推薦施肥建

nutrient ratio：營養(yǎng)率

\\"營養(yǎng)膠\\",\\"nutrient gelatin\\" | \\"營養(yǎng)率\\",\\"nutrient ratio\\" | \\"營養(yǎng),營養(yǎng)物\\",\\"nutrition\\"

nutritive ratio; nutrient ratio：營養(yǎng)率

營養(yǎng)性肌病 nutritional myopathy | 營養(yǎng)性(雞)白喉 nutritional roup | 營養(yǎng)率 nutritive ratio; nutrient ratio

nutrient ratio; nutritive ratio：營養(yǎng)率

營養(yǎng)分含量 nutrient content | 營養(yǎng)率 nutrient ratio; nutritive ratio | 營養(yǎng)分需要量 nutrient requirement

nutrient to caloric ratio：營養(yǎng)分能量比

營養(yǎng)分需要量 nutrient requirement | 營養(yǎng)分能量比 nutrient to caloric ratio | 營養(yǎng)分 nutrient; nutritive substance

NCR nutrient to calorie ratio：營養(yǎng)素與熱能比,養(yǎng)分對能量比

NCI National Cheese Institute 全國干酪研究所[美] | NCR nutrient to calorie ratio 營養(yǎng)素與熱能比,養(yǎng)分對能量比 | ND nitrogen digestibility 氮消化率