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稀土又称“农乐”,“益植素”,是一种以稀土元素为主要成份的新型植物生长调节剂,它能显著提高小麦产量,且简单易行,投资少,效益高。我县在北京市农科院土肥所大力协助下,按排了不同处理的对比试验。结果如下: 一、喷施稀土对小麦植株性状的影响。 1.使小麦根系发达。 2.喷后10天左右,叶色由浅绿逐渐变为深绿。在干旱炎热的情况下, 不喷稀土的小麦叶子中午萎蔫,而喷施稀土的叶片生长正常。植株高度在披节至齐叶时都高于不喷稀土区,叶子的长势整个生长期都是旺盛的。 3.成熟期,喷施稀土的小麦茎杆呈橙黄绿色,粗壮、活秧,而不喷的茎杆呈白黄色,细弱、死秧。由此看出喷施稀土能够延长茎和叶的功能期,防止小麦早衰,使其正常成熟。 4.喷施稀土能增加成穗数、穗粒数和千粒重。二、稀土和农药混合喷施对小麦产量和抗病害的影响。稀土对小麦白粉病有很好的抗性。枣元乡一农
Rare earth, also known as “agricultural music”, “beneficial plant”, is a rare earth element as the main component of the new plant growth regulator, which can significantly improve wheat yield, and simple, less investment, high efficiency. My county in Beijing Academy of Agricultural Sciences Soil and Fertilizer vigorously assisted, according to the row of different treatment comparison test. The results are as follows: First, spraying rare earth on wheat plant traits. 1. Make wheat root system developed. 2 spray after about 10 days, leaf color from light green gradually becomes dark green. In the hot dry conditions, non-sprayed rare earth wheat leaves wilting at noon, while spraying rare earth leaves grow normally. The height of the plant is higher than the non-spraying rare earth area when the stanza is in the Qiye, and the growth of the leaves is vigorous throughout the growth period. 3. Mature, wheat stems sprinkled rare earth orange yellow-green, sturdy, live seedlings, but not spray the stem was white, thin, dead seedling. This shows that spraying rare earth can extend the functional period stems and leaves, to prevent premature aging of wheat, making it normal maturity. 4. Spraying rare earth can increase the number of spikes, grain number and 1000 grain weight. Second, the mixture of rare earth and pesticides on wheat yield and disease resistance. Rare earth has good resistance to wheat powdery mildew. Zao yuan rural a