According to the results of the experiment on semination density and fertilizer, the plan of the field experiments is designed.

根據(jù)密度實(shí)驗(yàn)結(jié)果和施肥量實(shí)驗(yàn)結(jié)果設(shè)計(jì)野外試驗(yàn)方案717理伦午影院无码。

Whole machine profile modeling of whole type floating profile modeling mechanism,side deep fertilizer opener of obtuse angle chisel shape,precision seed metering device of combined internal cell bore,and covering soil part of front back separating character are applied in the machine,...

該機(jī)采用整體式浮動(dòng)仿形機(jī)構(gòu)整機(jī)仿形欧美孕妇在线看，鈍角鑿形側(cè)深施肥開溝器欧美一级做一级A片视频大鸡巴破处，組合內(nèi)窩孔式精密排種器韩国aa人人清清片中国aa人清，前后分置式八字型覆土器人禽性直播，其原理新穎蜜臀aⅴ免费网站欧美、傳動(dòng)可靠、使用調(diào)整方便自拍偷拍欧美性爱视频，既可壟播久久狠狠高潮亚洲精品、平播av一本大道香蕉大在线app，又可按傳統(tǒng)行距和大壟雙行播種，播種質(zhì)量好欧美性三级网站。

The shadow price and the analysis of sensibility can supply effective help for making and adjusting the fertilization.

影子價(jià)格和靈敏度分析可以為施肥方案的制定及調(diào)整提供有效的幫助全国亚洲最大黄色网站。

Isn't it amazing how you never have to water your weeds or nurture them and they shill give you an unwanted crop?

你無須澆水、施肥不卡综合色呦呦，但你的院子里還是會(huì)雜草叢生人人爽人人操官网，這不是很令人驚訝嗎？

The effects of different fertilization on soil microbial biomass C, N, P and maize yield in light sierozem were investigated with a field experiment, which was continued for 4 years at Hongsibu irrigated area of Ningxia.

通過設(shè)置在寧夏紅寺堡灌區(qū)開墾4a的淡灰鈣土上的定位試驗(yàn)www.99re.8com，研究了不同施肥對(duì)新墾淡灰鈣土微生物生物量碳天天做日日做狠狠做、氮、磷及玉米產(chǎn)量的影響欧美另类中文清纯一区。

The compound application of chemical fertilizers and sheep manure not only increased the contents of microbial biomass C, N and P but also raised the yield of maize, therefore, it was the best fertilization measure in the newly cultivated light sierozem.

化肥與有機(jī)肥羊糞配合施用既能顯著增加土壤微生物生物量碳精品久久艹、氮、磷含量又能使玉米產(chǎn)量顯著提高操B網站，因此是新墾淡灰鈣土施肥的最佳選擇国产农村一区二区在线播放。

In respect of the mechanical equipment in the planting industry, we should emphatically develop wheeled tractors of 100 horsepower or more and the auxiliary operation machine for less or exempted cultivation or deep loosing, straw and stubble smashing and field returning machine, joint operation machines for precise fertilization and seeding, complete equipment for cultivating sprouts of and for planting rice, maize, cotton and oil crops in factories, plant protection machinery, joint reapers, cotton pickers and complete agricultural equipment, etc..

種植業(yè)機(jī)械設(shè)備領(lǐng)域，重點(diǎn)發(fā)展100馬力以上輪式拖拉機(jī)及為其配套的少耕亚洲三级电影2021、免耕毛片网站推荐、深松作業(yè)機(jī)，秸桿及根茬粉碎還田機(jī)亚洲你懂的在线视频，精量施肥播種聯(lián)合作業(yè)機(jī)国内精品色，水稻、玉米特级特黄色视频、棉花插入女生视频、油料作物工廠化育秧及栽培成套設(shè)備，植物保護(hù)機(jī)械丁香五月婷，聯(lián)合收割機(jī)国产欧美综合在线视频，采棉機(jī)及設(shè)施農(nóng)業(yè)成套設(shè)備等。

OBJECTIVES: To investigate the effects of manure with chemical fertilizers on sloping-land citrus, thus developing a reasonable fertilization mangement for citrus farmers in Souther China.

研究目的：研究柑桔園的有機(jī)肥和化肥配施的效果二区视频在线，為南方坡地果園制定合理的施肥策略5060网全毛A片、指導(dǎo)農(nóng)戶科學(xué)施用有機(jī)肥和化肥提供技術(shù)支撐。

I put no manure whatever on this land, not being the owner, but merely a squatter, and not expecting to cultivate so much again, and I did not quite hoe it all once.

我沒有在這片地上施肥又硬又黄又粗又大又爽的视频日韩，我不是它的主人欧美特黄色视频，不過是一個(gè)居住在無主之地上的人，我不希望種那么多的地啊啊啊好大爽被插乱伦视频，就沒有一下于把全部的地都鋤好国产在线永久域名。

Method］ With 311-A optimum regression design, alfalfa, sweet clover, star grass, adsurgens, salt-tolerant grasses such as Leymus chinensis were selected to study the application level of nitrogen, phosphorus and zinc fertilizer.

方法］選擇苜蓿、草木樨国产三级盗摄视频、星星草性爱小视频免费、沙打旺欧美性爱黄片小视频、羊草等耐鹽牧草，采用311-A最優(yōu)回歸設(shè)計(jì)福利网在线观看，比較氮磷鋅施肥水平av资源免费。