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.

應(yīng)用實踐表明：建立的田間土壤養(yǎng)分信息庫可以應(yīng)用于精確農(nóng)業(yè)變量施肥的決策和作業(yè)管理

Labor market, stock raising, human food nourishment cycle and a lots of other country life in North Chinese were affected by the two peak labor curve in modern historical period.

大田勞動主要發(fā)生于田間欧美日韩国产在线mv，積肥是一項很費力的近代jizzjizz20，但不完全屬于大田近代，積肥近代在家內(nèi)欧美精品免费，施肥近代在農(nóng)田。

The main products are multi-functional farm administering machine, sowing fertilizer, ditching machine, it can be used in large shed,paddy field,or chard,grapery,terrace,slopping field and flat.it have more function,such as:cultivation,deep ploughing,uprooting,the grass,spraying pe- sticide,fertilization,irrigation and earth up and,ect.

產(chǎn)品集眾家之長91偷拍福利网，結(jié)構(gòu)緊湊真正免费的毛片免费的毛片，性能優(yōu)良，操作簡便靈活2019人人操人人摸，行走平穩(wěn)看国产免费黄色网站视频，適應(yīng)于山地、丘陵日本黄色网站大全、果園、菜地性交BBW、大棚以及各種小行距農(nóng)作物的的各種管理作業(yè)本页影院；產(chǎn)品具有旋耕、開溝亚洲国产91精品、培土欧美性交播播、鋤草、保墑97超碰热线、施肥亚洲欧美制服中文字幕、播種等多項功能。

Control fertilization can make needle leaf shortens; Leaf of fat much needle can lengthen, normally at spring, each fertilization comes 1 times 2 times can.

控制施肥可使針葉縮短黄色九九热视频；肥多針葉會變長一本到东京，通常于春季，各施肥1次至2次即可中文字幕一区二区久久综合。

Help advance somebody's career what what is appropriate to the occasion offers fixed rate is shady, maintain temperature to be in 12, 29 ℃ left and right sides, winter temperature appropriate is maintained in 16, 18 ℃, chun Xia two season grow exuberant, need taller air humidity, can undertake sparge; To soil the requirement does not father very, but the requirement keeps measurable and wet, grow seasonal, about 2 weeks apply fertilizer, and winter soil can work a bit and cool, reduce fertilization number; The method of minute of root is used more when breed; At Chu Xia season undertakes, return the method that can use cuttage additionally; Main pest has powdery flea, red spider, aphid, scale insect to wait.

栽培時宜給予一定程度的遮陰黄视频色网站，并保持溫度在12—29℃左右，冬季溫度宜維持在16—18℃一级欧美一级日韩一级二级，春夏兩季生長旺盛性爱无码视频专区，需較高空氣濕度，可進(jìn)行噴霧欧美熟妇全黄A片；對土壤要求不甚嚴(yán)看欧洲黄色视频，但要求保持適度濕潤，生長季節(jié)爱看AV网站，約2周施一次肥免费无码不卡视频在线观看，而冬季土壤可稍干和涼爽，并減少施肥次數(shù)26uuu色了噜噜精品二区；繁殖時多采用分根的方法黄色视频123入口；于初夏季節(jié)進(jìn)行，另外還可采用扦插的方法免费看日韩A片一区二区；主要害蟲有粉蚤先锋色xfplayav资源站。紅蜘蛛国产第一页www。蚜蟲。介殼蟲等国产调教精品91在线。

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久久免费一级无码毛片，我不是它的主人，不過是一個居住在無主之地上的人一级AAA男女免费视频，我不希望種那么多的地亚洲亚洲A片，就沒有一下于把全部的地都鋤好。

The effects of low level N4438ⅹ亚洲全国最大色丁香、P午夜精品美女爱做视频、K on seedling height and ground diameter of Agathis dammara were better than high levels. The treatment N1P1K1 namely urea 2.2 grams, fused calcium-magnesium phosphate fertilizer 16.6 grams, potassium chloride 1.7 grams showed the best fertilization and high significant to other treatments.

結(jié)果表明，1~8個月不同處理間都呈極顯著差異狼友视频在线观看2019高清，低水平的營養(yǎng)元素對促進(jìn)貝殼杉苗高和地徑的生長好于高水平偷窥欧美熟妇XXXX视频，以N1P1K1處理即尿素2.2g，鈣鎂磷肥16.6g亚洲色天堂网，氯化鉀1.7g為施肥效果最好午夜理论一级，且與其它處理呈極顯著差異。

The result shows: in 0~360 kg/hm^2 fertilizer can improve the plant height, dry matter accumulation of maize, nitrogen accumulation, root vigor, leaf nitrate reeducates activity, chlorophyll content and yield, meanwhile the leaves' nitrate reeducates activity, dry matter accumulation and the final output of wheat, root activity and other indicators were significantly correlated; Cultivating under the same conditions and dropping the fertilizer amount from 360 kg/hm^2 to 315 kg/hm^2, the dry matter accumulation will be increased, the roots vigor and leaf nitrate reeducates activity will be strengthened, but the yield are not obviously different in the same treatment.

結(jié)果表明：在0~360kg/hm^2的施肥范圍內(nèi)欧美一级欧美，肥料能顯著增加玉米植株的株高人人射人人操人人干、干物質(zhì)積累盆、葉綠素含量和籽粒產(chǎn)量在线观看一级视频免费，提高根系活力日韩欧美一级A片免费观看视频、葉片硝酸還原酶活性；同時硝酸還原酶活性国产youjizz、干物質(zhì)積累量男人的天堂综合网尹人网、根系活力和葉綠素含量等指標(biāo)與玉米最終產(chǎn)量呈顯著正相關(guān)；在相同的栽培條件下黑人一级a毛片免费视频观看，將施肥量從360kg/hm^2降至315kg/hm^2videossex性暴力野外，植株的于物質(zhì)積累量增加、根系活力www.18黄色视频在线观看、葉片硝酸還原酶活性增強美女插入网站，但處理間籽粒產(chǎn)量無顯著差異。

Low table in the conservation zone and the ball Road area, the high point of Hawaii for regular cultivation, its fertilization slightly more crop cycle, but only one year as opposed to the maintenance of a city is often green grass, crop fertilization "usage and frequency 6-7 times more."

在養(yǎng)護(hù)要求較低的球臺區(qū)和球道區(qū)亚洲一区色图小说，常種植高一點的夏威夷草人人操人人鲁，其施肥噴藥的周期稍長些，但是相對于常常一年只需維護(hù)一次的城市綠化草地欧美性爱日逼，其施肥噴藥的&用量和頻率要多6至7倍&玫玖精品视频在线播放。

No evident regularity was found in the depth from 15 to 30 cm. There was an obvious accumulation of OM and TN in the top 30 cm of the fallowed soils, of which the accumulation of OM was faster than that of TN and there was more accumulation in no-tillage compared to tillage. Soils applied with inorganic and organic fertilizers had much more OM and TN at 0～5 cm and 5～15 cm depth than soils applied with only inorganic fertilizers and soils without fertilization. However, OM and TN in these treatments were less than that in fallow treatment. No significant differences in OM and TN contents were found between fertilization treatments. Only in the 5 cm of top soils, OM and TN of the soils treated with only inorganic fertilizers were more than that of CK.

長期休閑的土壤在整個耕層有明顯的有機質(zhì)和氮素累積，其中碳的累積快于氮的累積http//www.色.com日本，免耕條件下比耕翻條件下累積量更大黄色视频插女。0～5 cm和5～15 cm土層有機肥與無機肥配施的處理天堂官方无码wwwwww，其有機質(zhì)和全氮質(zhì)量分?jǐn)?shù)均顯著高于單施化肥處理和不施肥處理，但均低于休閑處理国产免费三级片AAAA；15～30 cm土層各培肥處理則無明顯差異玖玖爱免费视频在线播放；單施化肥的土壤有機質(zhì)和全氮質(zhì)量分?jǐn)?shù)高于不施肥處理，但這種差異只在表層（0～5 cm）較顯著成人免费黄色视频观看在线。

top-drawer：最重要的

top-down 自頂向下 | top-drawer 最重要的 | top-dress 施肥于

top-dress：施肥于

top-drawer 最重要的 | top-dress 施肥于 | top-flight 最高的

top-flight：最高的

top-dress 施肥于 | top-flight 最高的 | top-hamper 高處的重東西

Phyllostachys pubescens：毛竹

中文摘要: 毛竹(Phyllostachys pubescens)是我國分布面積最大、范圍最廣,集經(jīng)濟(jì)欧美日韩高清、生態(tài)67色国产欧美、社會效益于一體的竹種. 本文以不同時期施肥處理下的毛竹林為對象,根據(jù)毛竹生長節(jié)律,對毛竹葉....

rice false smut：稻曲病

由稻曲病菌[Ustilaginoidea virens(Cooke)Tak.]引起的稻曲病(rice false smut)是水稻的一種次要病害,廣泛分布于世界各稻區(qū). 然而在我國某些稻區(qū)隨著優(yōu)良品種的更新和施肥水平的提高,稻曲病已成為生產(chǎn)上的重要病害之一[7,8].