【摘要】：設(shè)麥秸不還田(CK_1)、麥秸全量還田(CK_2)、麥秸還田且施用4種秸稈腐解劑(T_1~T_4)6個(gè)處理,研究秸稈腐解劑對(duì)麥秸稈腐解動(dòng)態(tài)和水稻生長(zhǎng)的影響。結(jié)果發(fā)現(xiàn),麥秸還田24 d后,施用腐解劑能夠提高小麥秸稈的腐解率,并且在麥秸稈全量還田條件下施用秸稈腐解劑能夠顯著促進(jìn)小麥秸稈中氮的釋放;在插秧30 d后,腐解劑能夠顯著促進(jìn)磷的釋放,但降低了水稻有效穗數(shù)、結(jié)實(shí)率、水稻產(chǎn)量,減產(chǎn)幅度達(dá)1.8%~7.1%;麥秸全量還田處理(CK_2)能提高水稻的有效穗數(shù)、結(jié)實(shí)率、千粒質(zhì)量、水稻產(chǎn)量。
[Abstract]:The effects of straw decomposing agent on the decomposition dynamics of wheat straw and rice growth were studied by six treatments: wheat straw not returning to the field (CKS 1), wheat straw returning to the field (CK2), wheat straw returning to the field and applying four kinds of straw decomposing agent (T 1 + T 4). The results showed that when wheat straw was returned to the field for 24 days, the decomposition rate of wheat straw could be increased by applying decomposing agent, and the nitrogen release from wheat straw could be significantly promoted when wheat straw was returned to the field in full quantity, and 30 days after transplanting seedlings. The decomposing agent could significantly promote phosphorus release, but decreased the effective panicle number, seed setting rate, rice yield, yield of rice and yield of 1.8and 7.1.The CK _ 2 treatment could improve the effective panicle number, seed setting rate, thousand grain mass and rice yield of rice.
【作者單位】： 江蘇省農(nóng)業(yè)科學(xué)院農(nóng)業(yè)資源與環(huán)境研究所;
【基金】：國(guó)家科技支撐計(jì)劃(編號(hào):2012BAD08B08R03) 江蘇省農(nóng)業(yè)科技自主創(chuàng)新資金[編號(hào):CX(13)3047]
【分類號(hào)】：S141.4;S511.22

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