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)巨乳操逼视频播，常種植高一點(diǎn)的夏威夷草，其施肥噴藥的周期稍長些av日韩免费网址，但是相對于常常一年只需維護(hù)一次的城市綠化草地久久久久久黃色網站，其施肥噴藥的&用量和頻率要多6至7倍&。

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(jī)質(zhì)和氮素累積日韩精品合集第一页免费观看，其中碳的累積快于氮的累積2019黄色超碰在线，免耕條件下比耕翻條件下累積量更大。0～5 cm和5～15 cm土層有機(jī)肥與無機(jī)肥配施的處理95精品视频，其有機(jī)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日韩se，但均低于休閑處理；15～30 cm土層各培肥處理則無明顯差異麻豆国产AV无码精品一区二区；單施化肥的土壤有機(jī)質(zhì)和全氮質(zhì)量分?jǐn)?shù)高于不施肥處理外国一级片网站在线观看，但這種差異只在表層（0～5 cm）較顯著。

So it is urgent to seek a scientific and simple method to guide the decision making of fertilizer prescriptions in practice.

因此在平衡施肥的生產(chǎn)應(yīng)用中急需有一種科學(xué)而又簡便的方法來指導(dǎo)施肥方案的制定婬片A片AAA毛片啊。

Shijiazhuang kangdi TU Biology Technology Co., Ltd. Main Products are:"Green Resources for Health" refined bio-organic fertilizer,"Green Resources for Health" microbial fertilizer red solid, liquid,"Green Resources for Health" red microbial fertilizer,"Green Resources for Health" microbial leaf leaven, reactive amino acid bio-fertilizer, Culture and Sport to TU "Green Resources for Health" meal of bio-organic fertilizer.

石家莊康地恩生物科技有限公司主營產(chǎn)品有：&綠源生&精制生物有機(jī)肥日本熟妇BBWHD、&綠源生&微生物固體沖施肥、液體&綠源生&微生物沖施肥免费久久网站、&綠源生&微生物葉面肥一级A片黄色毛片国产、活性氨基酸生物肥、康地恩&綠源生&豆粕生物有機(jī)肥亚洲一区二区三区四区看片在线播放。

Effects of the applied rates of phosphate fertilizer on nitrate nitrogen content in flue-cured tobacco were studied.

在栽培措施中AⅤ国产日韩欧美在线播放视色，施肥對TSNA的影響最大，肥料種類欧美黑人巨物XXXX猛交、數(shù)量及施肥時間均對TSNA有較大的影響[3]乱色伦久久图片。

Fertilizer type, rate of fertilizer application and the method change of spreading manure can influence the dynamic trends of component of inorganic phosphorus model in cotton field of gray desert soil, activate fixed attitude phosphorus in the soil, raise the content of the available phosphorus in the soil, and reduce the fixing of phosphorus in the soil.

9肥料類型、施肥量以及施肥方法的變化可以影響典型灰漠土棉田無機(jī)磷組分的動態(tài)欧洲亚洲美洲Va国产综合，激活土壤中固定態(tài)磷免费黄色网站进入，提高土壤有效磷的含量，減少土壤磷的固定国产精品三级片网站。

The experiment was conducted to compare the effects of furrow irrigation and drip irrigation on tomato growth and N utilization.

與當(dāng)?shù)貍鹘y(tǒng)施肥處理相比黄色a一片免费，應(yīng)用該目標(biāo)值推薦施肥，顯著降低了氮肥用量，保證了番茄的產(chǎn)量国产污污自拍视频观看。

The drip irrigation system saved substantial amounts of water in comparision with furrow irrigation and produced the same high yields.

與溝灌施肥方式相比亚洲91网视频在线播放，滴灌具有明顯的節(jié)水作用，但受土壤肥力的影響国模大胆私拍啪啪AV，滴灌施肥并未產(chǎn)生明顯的增產(chǎn)效應(yīng)www.尤物。

In the treatment of N(subscript 2-3)(600 kg/ha averagely applied three times), the NO(superscript - subscript 3)-N concentration in new-grown leaves was 92.66g/g, which was the highest in the three types of leaves on H2, and was still lower than the potential toxicosis dose for animals.

高氮水平和分次施肥是造成同一類型葉片NO(上標(biāo)-下標(biāo) 3)-N累積的主要原因；高氮分次施肥處理(N2.3)第二期收獲的新生葉NO(上標(biāo)-下標(biāo) 3)-N含量最高女明星换脸A级久久久毛片，為92.66g/g性爱在线欧美，這一數(shù)值尚未達(dá)動物攝食的潛在致毒劑量。

The average level of the soil available potassium was 119.96 mg/kg, which decreased 18.94 mg/kg and 1.05 mg/kg one year averagely. But the decreasing trend alleviated in recent years. There were 39.5 kg/hm^2 nitrogen and 30.9 kg/hm^2 phosphorus (P2O5) more than needed averagely, and 150.0 kg/hm^2 potassium (K2O) in deficiency. Though the fertilizer application was high and the rate of fertilizer was 647.96 kg/hm^2 in nutrient, the ratio of organic to inorganic was still unreasonable. The ratio of the chemical fertilizer nitrogen phosphorus (P2O5) and potassium (K2O) was 1:0.42:0.14. The nitrogen application was enough and even higher than that was needed. The phosphorus was proper elementarily and potassium was in deficiency. The yield of wheat which was the main crop increased slightly and that of other autumn harvest crops was stable.

土壤速效鉀7年平均值119.96 mg/kg2017年国产一级黄片，比第二次土壤普查時下降了18.94 mg/kg日韩看片自拍视频，平均每年以1.05 mg/kg的速度下降，但近年來下降趨勢變緩亚洲色精品一区二区三区四区；養(yǎng)分平衡中氮素平均盈余39.5 kg/hm^2色妞精品一级，磷素(P2O5)盈余30.9 kg/hm^2，鉀素(K2O)虧缺150.0 kg/hm2欧美精品在线一区；全省施肥水平較高禁止18岁以下看的黄片，每公頃總施肥量折純養(yǎng)分647.96 kg，但有機(jī)無機(jī)比仍不合理在线观看免费麻豆AV，化肥氮91精彩视频、磷、鉀投入比例1：0.42：0.17激情综合婷婷丁香五月，氮肥充足人人干人人射人人，部分地區(qū)用量偏高，磷肥基本合理成网站免费在线观看，鉀肥不足欧美老妇女操逼视频看看；主要農(nóng)作物小麥產(chǎn)量略有上升，其它主要秋收作物產(chǎn)量基本穩(wěn)定小草无码视频。