Pemberian Kapur CaCO3 dan Pupuk KCL dalam Meningkatkan Pertumbuhan Serta Serapan K dan Ca di Tanaman Kedelai
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Institusion
Universitas Sumatera Utara
Author
S, Rangga Rizki (STUDENT ID : 100301002)
(LECTURER ID : 0020115710)
(LECTURER ID : 0002056904)
(LECTURER ID : 0020115710)
(LECTURER ID : 0002056904)
Subject
Liming
Datestamp
2022-12-22 03:15:14
Abstract :
Ultisols potentially for the development of dryland agriculture in Indonesia with an area reached 45.794.000 hectares, or about 25% of the total land area of Indonesia. Characteristics of Ultisols problematic for soybean cultivation are acidity and high Al saturation that generally neutralized by liming. Beside reducing the acidity and pressing Al saturation, liming also increased the Ca content of the soil. Increased levels of soil Ca to some extent have influenced to the levels of soil K and plant K uptake. So, the doses of CaCO3 and KCl that can achieve sufficient plant uptake of Ca and K of soybean need to know. This research was conducted at screen house of the Agricultural Faculty University of North Sumatra, Medan from July to September 2014,by using a Randomized Block Design consisting of two factors, CaCO3 (0xAl-dd, 1xAl-dd, 2xAl-dd, and 3xAl-dd), and KCl (0 kg/ha, 100 kg/ha, 200 kg/ha, and 300 kg/ha). The results showed that CaCO3 application has the significant effect in increasing pH, Ca dd, shoot dry weight, root dry weight, and plant Ca uptake, and in decreasing Al dd and Plant K uptake of soybean. The dose of CaCO3 to increase the maximum uptake of Ca, K, and shoot dry weight of soybean plants is 1.73 to 1.87 (x Al-dd). KCl application has significant effect in increasing K-dd, shoot dry weight, and decreasing plant Ca uptake of soybean. The dose of KCl to increase the maximum plant Ca uptake of soybean is 165 kg/ha. While the interaction of CaCO3 and KCl had no significant effect on Growth.
Ultisols potentially for the development of dryland agriculture in Indonesia with an area reached 45.794.000 hectares, or about 25% of the total land area of Indonesia. Characteristics of Ultisols problematic for soybean cultivation are acidity and high Al saturation that generally neutralized by liming. Beside reducing the acidity and pressing Al saturation, liming also increased the Ca content of the soil. Increased levels of soil Ca to some extent have influenced to the levels of soil K and plant K uptake. So, the doses of CaCO3 and KCl that can achieve sufficient plant uptake of Ca and K of soybean need to know. This research was conducted at screen house of the Agricultural Faculty University of North Sumatra, Medan from July to September 2014,by using a Randomized Block Design consisting of two factors, CaCO3 (0xAl-dd, 1xAl-dd, 2xAl-dd, and 3xAl-dd), and KCl (0 kg/ha, 100 kg/ha, 200 kg/ha, and 300 kg/ha). The results showed that CaCO3 application has the significant effect in increasing pH, Ca dd, shoot dry weight, root dry weight, and plant Ca uptake, and in decreasing Al dd and Plant K uptake of soybean. The dose of CaCO3 to increase the maximum uptake of Ca, K, and shoot dry weight of soybean plants is 1.73 to 1.87 (x Al-dd). KCl application has significant effect in increasing K-dd, shoot dry weight, and decreasing plant Ca uptake of soybean. The dose of KCl to increase the maximum plant Ca uptake of soybean is 165 kg/ha. While the interaction of CaCO3 and KCl had no significant effect on Growth.
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