摘要
试验结果表明:氮肥用量0～128 9kg/hm2条件下,随着氮肥用量的提高直链淀粉含量随之增高,否则反之;氮肥用量在0～112 8kg/hm2条件下,氮肥用量愈高蛋白质含量逐渐增高;氮肥用量高于112 8kg/hm2蛋白质含量下降。氮肥用量与垩白米率和垩白度分别呈显著和极显著正相关。水稻产量与品质表现明显的矛盾。在产量因素中穗数越多精米率和整精米率越低,垩白米率和垩白度也越大;千粒重、成熟度愈高精米率和整精米率亦高,而垩白米率、垩白度则下降。
Experimental results indicated that the amylose content raised with the increasing of application quantity nitrogen fertilizer when the nitrogen fertilizer quantity was 0～128.9 kg/hm^2. The protein content raised with the increasing of application quantity nitrogen fertilizer when the nitrogen fertilizer quantity was 0～112.8 kg/hm^2. The protein content was obviously lower if the nitrogen fertilizer quantity was higher than 112.8 kg/hm^2?Quantity of applying nitrogen fertilizer remarkably increased with chalkiness grains and degree of chalkiness. The relation-ship between rice yield and rice quality was obvious difference. The milled rice rate and head rice rate were more lower but chalkiness grains and degree of chalkiness became were more bigger with the higher of spikes in the yield factor?The milled rice rate and head rice rate were more higher but chalkiness grains and degree of chalkiness became more lower with higher of 1000-seeds weight and mature degree ?
出处
《土壤肥料》
CSCD
北大核心
2005年第1期17-19,共3页
Soils and Fertilizers
