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东江丘陵地区土壤瘦瘠,严重缺磷,而豆科绿肥是一种喜磷作物,对磷素养分有特殊需要,磷肥对豆科作物吸收利用养分、结瘤和根瘤菌的固氮效果等都有良好的促进作用。要种好绿肥必须施用磷肥,这是丘陵地区栽培绿肥成败和提高绿肥产量的关键措施。但如何最经济有效施用磷肥,降低绿肥成本,以便相应降低后作水稻的生产成本,达到少肥生大效和增产增收的目的,是今后大力发展绿肥必须解决的重要问题。为此,我们于1965年冬,在惠阳镇隆公社,广泛开展了冬种绿肥施用磷肥技术的群众性科学实验活动,初步摸清了当地苕子施磷的增产
The soil in the hills of Dongjiang area is barren and has a serious deficiency of phosphorus. The legume green manure is a kind of phosphorus-bearing crop and has special needs for phosphorus nutrient. The phosphorus fertilizer has the effect of absorbing and utilizing the nutrients of leguminous crops, and the nitrogen fixation effect of nodulation and rhizobia A good role in promoting. To be good green manure must be applied phosphate fertilizer, which is the success of green manure in the hilly areas and improve the production of green manure key measures. However, the most economical and effective application of phosphate fertilizer to reduce the cost of green manure in order to reduce the cost of post-production rice to achieve the purpose of increasing efficiency and increasing output of less fat, is an important issue that must be solved in the future to develop green manure. To this end, we in the winter of 1965, in Huiyang Zhenlong Commune, extensive winter planting of green manure using phosphate technology mass scientific experiments, preliminary find out the local razor phosphorus production increase