To sum up, the economic benefits were an important factor to direct peasants to apply fertilizer .

經(jīng)過綜合分析，經(jīng)濟效益是指揮農(nóng)民施肥的重要因素之一亚洲a片综合。

Soil microbial biomass and activities of invertase and urease all tended to decrease after pot-culture experiment, while the correlations between these biochemical properties and field ages were similar to those before this experiment, suggesting that rice cultivation without fertilization consumed part of soil microbial biomass, decreased soil enzyme activities correlated with C and N transformation, and affected soil nutrients status disadvantageously.

溫室盆栽試驗之后又色又爽又舒服的视频，水稻土的微生物生物量及酶活性與利用年限之間的關系規(guī)律和種植水稻之前基本一致，且整體上又趨于下降精品美女视频在线观看www，即無施肥條件下種植水稻轉化利用了土壤部分微生物生物量欧美在线a免费观看，并減弱了與碳氮轉化相關酶的活性，對保持水稻土的營養(yǎng)水平造成不利影響精品日韩妖精视频网站在线播放。

Application of a half dose of the high input rate did not increase the peanut yield significantly.

施肥量為一半時大学生一级一片第一次一级莫，并不顯著增加花生產(chǎn)量。

Based on the analysis of the experimental data obtained of north Ying-shan Mountain Range, the paper puts forth some approaches, with respect totillage, rotational cropping and fertilizers, in the improvement of rainfallwater utilization in dry-land farming.

本文是作者根據(jù)近年來在內蒙古烏蘭察布盟北部(年降水量約300毫米左右)地區(qū)亚洲欧美卡通图区丝袜，通過加強田間管理国模高清、耕作施肥、種植綠肥壓青等措施亚洲无玛黄色视频在，有效地提高了對當?shù)剞r(nóng)業(yè)降水資源的利用率尤物成人高清在线观看网址大全，并探討了一些新的途徑。

One-time fertilization at present rate did not have effects on nitrogen nutrient in water nor duckweed productivity.

以目前劑量施肥一次對水中氮類營養(yǎng)及浮萍生產(chǎn)力并無效應深夜免费人妻一区91麻豆。

Some morphological and physiological effects of seep irrigation with pot buried under the earth on apple trees were studied.

如果埋罐結合施肥人妻少妇视频一区中文字幕，所測定的各項形態(tài)和生理指標均顯著高于單獨埋罐處理日韩激情无码一级毛片久久，果實品質也得到了改善。

A minute structure in seed plants,containing the embryo sac and surrounded by the nucellus,that develops into a seed after fertilization .

胚珠種子植物的一個小的結構亚洲国产aⅴ精品一区不卡，含有胚囊并被珠心所包圍，施肥后長成種子受精的產(chǎn)物是雜合子人人人人人人人人人干干干干干干干干干我。

The journal publishes original scientific articles, reviews and short communications dealing with all aspects on production and health in plants and animals, as well as rural development, such as genetics, breeding, organic, biological agriculture and sustainable production systems, apiculture, aquaculture, forages and pastures, plant and animal diseases, pests and weeds, epizootiology, immunology, parasitology, physiology, reproduction, management and food technology, natural and genetic resources, agricultural economics, rural engineering and mechanization, soils, fertilization, irrigation and watering, etc.

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The study was based on long-term field experiment in Hailun Experimental Station of Agricultural Ecology, Chinese Academy of Sciences.

在中國科學院海倫農(nóng)田生態(tài)系統(tǒng)國家野外科學觀測研究站，應用長期定位試驗研究了干旱年份不同施肥處理下的黑土農(nóng)田水分狀況免费線上看国产黄色网站。

Results show that long-term fertilization significantly affected concentrations of soil total BRSP and easily extractable BRSP in 1~2 mm aggregate.

研究結果表明2019年黄片视频，長期不同施肥顯著影響土壤1~2 mm團聚體中總BRSP和易浸提BRSP含量。