daoleqiutian,youyuyuliangshaole,turangzhongshuifenyesuizhijianshao,jiashangkongqiwendudezhurijiangdi,gendexishouzuoyongyeyincibuduanjianruo,zhishishuifengongyingshitiao,nongzuowutingzhishengchang,bianyaokailianshougele。
莊(zhuang)稼(jia)收(shou)獲(huo)以(yi)後(hou),土(tu)壤(rang)中(zhong)可(ke)溶(rong)性(xing)養(yang)分(fen),一(yi)部(bu)分(fen)被(bei)作(zuo)物(wu)生(sheng)長(chang)發(fa)育(yu)吸(xi)收(shou),一(yi)部(bu)分(fen)被(bei)夏(xia)秋(qiu)季(ji)雨(yu)水(shui)衝(chong)失(shi)掉(diao),肥(fei)力(li)下(xia)降(jiang),使(shi)土(tu)壤(rang)板(ban)結(jie)程(cheng)度(du)加(jia)重(zhong)。因(yin)此(ci),進(jin)行(xing)秋(qiu)季(ji)翻(fan)耕(geng)、huifudili,jiuxiandefenwaizhongyao。qiushouhou,dilicanliuzheyixiezacaohekuzhiluoye,tebieshicongturangbiaocengzhidaodixiashencengxujideshuifenbijiaoduo,jingguofangenghou,bujinnengbazacaohekuzhiluoyemairugengzuocengyixia,haikeyibaoxuzhudaliangdeshuifen,jianqinglainiandechunhanhexiachushidecaohuang。chucizhiwai,qiuhoutudifangenghou,jingguoyidongchunchangshijianderishai,budankeyibafanshanglaideditufenghua,jiahouhuotuceng,gailiangturangxingzhi,zengjiayangfen,tigaofeili,erqiedongxueronghuahoubuyiliushi,shenruturangli,gonggeizhongzifayaheyoumiaoshengchang,suoyinongyanshuo, 秋翻深一寸,頂上一茬糞。
秋翻地,要在秸稈清理幹淨後到封凍前這段時間進行,翻耕的深度,要根據土壤性質和肥力情況而有所區別。黑土層較厚、有機物質含量多、肥力高的地塊,翻上來的生土很容易熟化,可以適當深翻,以20~25厘米為宜;黑土層較薄、有機物質含量少、肥力低的地塊,翻上來的生土熟化較慢,要適當淺翻,以15~20厘米為好;沙質土壤孔隙度大、透氣性好,翻耕的深度就要淺些;對於鹽堿地,表土含鹽堿比底土多的地塊,可適當深翻;表土含鹽堿比底土少的地塊,則要適當淺翻。
秋(qiu)翻(fan)地(di)時(shi),如(ru)若(ruo)能(neng)與(yu)秋(qiu)施(shi)農(nong)家(jia)肥(fei)結(jie)合(he)進(jin)行(xing),便(bian)有(you)利(li)於(yu)加(jia)速(su)土(tu)壤(rang)的(de)熟(shu)化(hua)和(he)培(pei)肥(fei)地(di)力(li)。由(you)於(yu)近(jin)年(nian)來(lai)化(hua)肥(fei)的(de)投(tou)入(ru)量(liang)較(jiao)多(duo),不(bu)少(shao)農(nong)民(min)隻(zhi)顧(gu)眼(yan)前(qian)得(de)利(li),大(da)量(liang)使(shi)用(yong)化(hua)肥(fei),致(zhi)使(shi)農(nong)田(tian)中(zhong)有(you)機(ji)物(wu)質(zhi)含(han)量(liang)降(jiang)低(di),土(tu)壤(rang)物(wu)理(li)性(xing)狀(zhuang)較(jiao)差(cha),通(tong)氣(qi)性(xing)不(bu)好(hao),容(rong)易(yi)造(zao)成(cheng)土(tu)壤(rang)板(ban)結(jie)。在(zai)秋(qiu)翻(fan)地(di)的(de)同(tong)時(shi),結(jie)合(he)進(jin)行(xing)農(nong)家(jia)肥(fei)秋(qiu)施(shi),既(ji)可(ke)以(yi)增(zeng)加(jia)土(tu)壤(rang)裏(li)有(you)機(ji)物(wu)質(zhi)的(de)含(han)量(liang),改(gai)良(liang)土(tu)壤(rang)的(de)結(jie)構(gou),又(you)能(neng)促(cu)進(jin)土(tu)壤(rang)中(zhong)微(wei)生(sheng)物(wu)的(de)活(huo)動(dong)與(yu)繁(fan)殖(zhi),使(shi)肥(fei)土(tu)相(xiang)融(rong),培(pei)肥(fei)土(tu)壤(rang),提(ti)高(gao)地(di)力(li)。
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