行政院農業委員會台南區農業改良場  研究彙報第8號

不同氮鉀肥用量及栽植密度下水稻青割對稻谷產量之影響試驗

廖上池 林朝杉

摘  要

臺灣畜牧事業勃興青飼料甚為缺乏情形下,在正常水田生產稻谷外能否另生產出一批副產青飼料為本試驗目標。於59年第二期作一處的成績:最密植(18cm×12cm)條件下用公頃200kg氮及60kg鉀割一次稻藁影響稻谷減產25%仍能生產每公頃4,138公斤稻谷(最高),多氮(200kgN)處理青飼料公頃產量為5,373kg而青飼料而超出疏植者(24cm×21cm)21%。


Effect on the Yield between Fodder Cutting and Ponlai Rice Grain among Different Level of Nitrogen, Potash Fertilizer, and Different Spacing

S. C. Liao

Summary

       Development of animal industry in Taiwan is remarkable these years, but fodder supply is a neck-bottle for this industry.  Since there is no sufficient cultivate land for fodder crop, we should find another way to support it.

        In summer 1970, our station cooperated this test with Mobil fertilizer co. at Tukoo township.  We try to supply one fodder cutting before the grain harvesting of rice in one rice crop season.  The results are:

1. It gain maximum grain yield (4133 kg/ha) on N 200 kg, potash 60 kg per ha, the least space (18 cm × 12 cm) treatment, and decrease 25% grain against original cropping.

2. Major N treatment (200kg/ha) show 5373 kg/ha fodder yield over minor N treatment (100 kg/ha) by 14.6%.

3. Minor spacing (18cm × 12cm) evenly show 5353 kg/ha fodder yield over major spacing (24 cm×21cm) by 21%.

Since the yield of summer cropping rather lower, we expect an excellent result in spring cropping after this test.



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