1.The results showed that the population size of DNB in purple paddy soil, Huangsong paddy soil and red earth paddy soil varied in the range of 59.04 ×104~ 157. 59×104, 42. 89×104~108. 97×104 and 32.14 × 104~ 75. 30 × 104cfu·g-1 dried soil, respectively, which was positively related to the quantity of consumed nitrate in paddy soils.
结果表明,紫色稻田土壤、黄松稻田土壤和红壤稻田土的DNB种群数量范围分别为59.04 x 104～157.59×104、42.89×104～108.97×104和32.14×104～75.30×104 cfu·g-1.稻田土DNB种群数量和土壤NO3-的消耗量之间具有正相关性.
2.The addition of NH4+ increased ARk for the blue clayey paddy soil but decreased ARk for the fluviogenic loamy paddy soil,and for the silt loamy paddy soil it increased ARk at low range of ARk and decreased the ARk value at high range of ARk.
加NH_4~+使青紫泥AR~K提高、泥质田AR~K降低、粉泥田在低AR~K时提高而高AR~K时降低;
3."Zhuanghe Bright Pearl " Brand organic paddy rice production base locates in the Zhuanghe city Heidao town, is close to the sea and the mountain, has the temperature condition which extremely is suitable and a longer growth period for the organic paddy rice growth grain is mature, sweet pure abundant Rao Re Ru the water source irrigation, good ecological environment and advanced planting technology provide the advantageous condition for the production of organic paddy rice and the development of ecological agriculture.
“庄合晟珠”有机水稻生产基地位于庄河市黑岛镇，依山傍海，有极为适宜的温度条件和较长的生长期供有机水稻生长发育籽粒成熟，有甘甜纯净丰饶若乳的水源灌溉，有良好的生态环境和先进的种植技术，为生产有机水稻、发展生态农业提供了得天独厚的条件。
4.Fluvo-aquic soil and Permeable paddy soil had a specific species which was closely related to Nitrosospira cluster 3b Z97849. There were four species of AOB found in Permeable paddy soil, and one of them was specific species for Permeable paddy soil and this was closely related to Nitrosospira cluster 3a AF353263. The nitrification activities of nitrifiers selected from these three soils were different.
黄泥土有4个氨氧化菌种属,除了与潮土共有的一个种属是两种土壤特有的氨氧化菌种属外,黄泥土还有一个与其他氨氧化菌种属亲源性比较远的,黄泥土特有的种属,与Nitrosospira属的cluster3aAF353263亲源性很近。 3种土壤中分离到的硝化细菌表现出不同的硝化能力。
5.Based on soil nutrient analyses and adsorption tests, the pot experiments were carried out with sorghum as indicative crop to diagnose systematically the nutrition factors obstructing crop growth in two kinds of paddy soil from Shanghai suburbs. The diagnosis results showed that for both tested paddy soils, P was more deficient than N, Cu and Fe were overabundant and K application was inefficient for the percolating clay paddy soil from Qixian, Zn was deficient, Mn and Mo were overabundant;
在土壤养分分析和养分吸附试验基础上 ,以高粱为指示作物作盆栽试验 ,对上海土壤 (黄泥土和夹沙泥 )中的作物养分障碍因子进行系统诊断 ,并将此结果与大田试验作比较 ,结果表明 :供试的黄泥土、夹沙泥两种水稻土养分缺乏顺序均为 P>N,Cu、Fe偏丰 ,K未显效 ;
6.We have successfully separated and identified,from the ripening paddy in the field to the paddy stored for two years, 84 species of fungi belonging to 30 genera, among which there are 26 dominant species, 39 common ones and 19 rare ones.
从田间黄熟期到储藏两年的稻谷上,共分离鉴定出真菌30属、84种. 其中优势菌26种,常见菌39种,少见菌19种.
7.(3) 150kg/mu of slag powder of yellow phosphorus or 100kg/mu of lime could be used as the lower limit for controlling pH drop of acid paddy bellow pH4,and 300kg/mu of lime as the upper limit for improving the acid paddy.
3、亩用黄磷炉渣粉150kg或亩用石灰100kg可作为控制“灌溉水及盐浸耕层土壤pH均为4．0的煤锈水田土壤”pH继续下降的下级指标，亩用石灰300kg可作为这类土壤改良用量的上限指标；
8.The influences of the environmental temperature and the moisture contents of the paddy on the rice cracking caused by moisture absorption after mixing of the paddy with the moisture contents of 20.5%, 24.5%, 28.7%, 10.1%, 12.0% and 13.9% were studied.
研究含水量20?5％、24?5％和28?7％的华稻21与含水量10?1％、12?0％和13?9的同种稻谷混合放置后，随着时间的延长，环境温度和稻谷原始含水量对干稻谷吸湿产生裂纹的影响。
9.The complexes can improve the germinating rate of the vegetables′ and paddy′s seeds, promote the nutritious growth of crop,increase the paddy yield per unit area by 3?3% and cucumber yield per unit area by 12%～15% respectively,and inhibit the diseases and insects harmful to the vegetables of the cruciferae family.
配合物可提高蔬菜、水稻种子的发芽率,促进作物的营养生长,提高水稻产量3.3%,提高黄瓜产量12%～15%,对十字花科蔬菜的病毒有一定的抑制作用。
10.STUDIES ON PADDY SOILS Ⅳ.THE MOVEMENT AND ACCUMULATION OF ZINC IN PADDY SOILS
水稻土的研究——Ⅳ.锌在水稻土中的移动和积累
